Publications

Blakemore, C, Muncey, JPJ and Ridley, RM (1971) Perceptual fading of a stabilized cortical image. Nature, 233, 204-205.

Blakemore, C, Muncey, JPJ and Ridley, RM (1973) Stimulus specificity in the human visual system. Visual Research, 13, 1915-1931.

Ridley, RM and Ettlinger, G (1973) Visual discrimination performance in the monkey: the activity of single cells in inferotemporal cortex. Brain Research, 55, 179-182.

Ettlinger, G, Ridley, RM and Hester, NS (1973) Successive visual discrimination performance in the monkey with brief stimuli. Neuropsychologia, 11, 470-480.

Ridley, RM (1974) Non-equivalence of vertical and horizontal planes in stripe discrimination by monkeys. Neuropsychologia, 12, 407-408.

Ridley, RM and Ettlinger, G (1975) Tactile and visuo-spatial discrimination performance in the monkey: the effects of total and partial posterior-parietal removals. Neuropsychologia, 13, 191-206.

Ettlinger, G and Ridley, RM (1975) Visual discrimination in the monkey: distinguishing the incorrect response. Neuropsychologia, 13, 111-113.

Ridley, RM and Ettlinger, G (1976) Impaired tactile learning and retention after removals of the second somatic sensory projection cortex (S11) in the monkey. Brain Research, 109, 656-660.

Ratcliff, G, Ridley, RM and Ettlinger, G (1977) Spatial disorientation in the monkey. Cortex, 13, 62-65.

Ridley, RM (1977) Ph.D. Thesis: London University. Responsiveness of units in inferotemporal and foveal prestriate cortex of the monkey during visual discrimination performance

Ridley, RM, Hester, NS and Ettlinger, G (1977) Stimulus- and response- dependent units from the occipital and temporal lobes of the unanaesthetized monkey performing learned visual tasks. Exp. Brain Res., 27, 539-552.

Ridley, RM (1978) The relationship of cortical unit activity to behaviour as shown by recordings from unanaesthetized monkeys. Recent Advances in Primatology, 1, 993-995.

Sugishita, M., Ettlinger, G. and Ridley, R. M. (1978) Disturbance of cage finding in the monkey. Cortex, 14, 431-438.

Hester, N. S. and Ridley, R. M. (1978) The influence of background illumination on visual discrimination learning in monkeys with inferotemporal lesions. Neuropsychologia, 16, 357-377.

Ridley, R. M. and Ettlinger, G. (1978) Further evidence of impaired tactile learning after removals of the second somatic sensory projection cortex (S11) in the monkey. Exp. Brain Res., 31, 475-488.

Scraggs, P. R. and Ridley, R. M. (1978) Behavioural effects of amphetamine in a small primate: relative potencies of the d- and l-isomers. Psychopharmacol., 15, 243-245.

Scraggs, P. R. and Ridley, R. M. (1978) The effect of dopamine and noradrenaline blockade on amphetamine-induced behaviour in the marmoset. Psychopharmacol., 62, 41-45.

Ridley, R. M., Scraggs, P. R. and Baker, H. F. (1979) Modification of the behavioural effects of amphetamine by a GABA agonist in a primate species. Psychopharmacol., 64, 197-200.

Ridley, R. M., Baker, H. F., and Scraggs, P. R. (1979) The time-course of the behavioural effects of amphetamine and their reversal by haloperidol in a primate species. Biological Psychiatry, 14, 753-765.

Baker, H. F. and Ridley, R. M. (1979) Increased HVA levels in primate ventricular CSF following amphetamine administration. Brain Res., 167, 206-209.

Scraggs, P. R., Baker, H. F. and Ridley, R. M. (1979) Interaction of apomorphine and haloperidol; effects on locomotion and other behaviours in the marmoset. Psychopharmacol., 66, 41-43.

Ridley, R. M., Baker, H. F. and Crow, T. J. (1980) Behavioural effects of amphetamine and related stimulants; the importance of species differences as demonstrated by a study in the marmoset. In 'Amphetamines and related stimulants: chemical, biological, clinical and sociological aspects'. Ed. J. Caldwell, CRC Press, Ohio pp. 97-116.

Ridley, R. M., Scraggs, P. R. and Baker, H. F. (1980) The effects of metoclopramide, sulpiride and the stereoisomers of baclofen on amphetamine-induced behaviour in the marmoset. Biological Psychiatry, 15, 265-274.

Crow, T. J., Cross, A. J., Johnstone, E. C., Longden, A., Owen, F. and Ridley, R. M. (1980) The time-course of the antipsychotic effect in schizophrenia and some changes in post-mortem brain and their relation to neuroleptic medications. Advances in Biochemical Psychopharmacol., 24, 495-905.

Ridley, R. M., Baker, H. F. and Weight, M. L. (1980) Amphetamine disrupts successive but not simultaneous visual discrimination in the monkey. Psychopharmacol., 67, 241-244.

Weight, M. L., Ridley, R. M. and Baker, H. F. (1980) The effects of amphetamine on delayed response performance in monkey. Pharmacol. Biochem. Behav., 12, 861-864.

Ridley, R. M., Weight, M. L., Haystead, T. A. J. and Baker, H. F. (1980) 'Go-here-go-there' performance after amphetamine' the importance of the response requirement in successive discrimination. Psychopharmacol., 69, 271-273.

Joseph, M. H., Baker, H. F. and Ridley, R. M. (1980) Analysis of CSF amine metabolites and precursors including tryptophan, 5H1AA and HVA by probenecid studied in primates. In 'Central Neurotransmitter Turnover'. Eds. C. Pycock and P. Taberner. Croom Helm: London. 162-167.

Crow, T. J., Tyrrell, D. A. J., Baker, H. F., Bloxham, C., Davies, H., Ferrier, I. N., Johnstone, E. C., Parry, R. P. and Ridley, R.M. (1981) Detection of a 'virus-like agent' in CSF in patients with schizophrenia, affective psychoses, Huntington's Chorea and some neurological conditions and attempts to demonstrate its transmission. In 'Proceedings of IIIrd World Congress of Biological Psychiatry' Eds. C Perris, G Strawe, and B Jansson. Elsevier/North Holland Biochemical Press, pp. 59-64.

Ridley, R. M., Haystead, T. A. J. and Baker, H. F. (1981) An involvement of dopamine in higher order choice mechanisms in the monkey. Psychopharmacol., 72, 173-177.

Ridley, R. M., Haystead, T. A. J. and Baker, H. F. (1981) An analysis of visual object reversal learning in the marmoset after amphetamine and haloperidol. Pharmacol. Biochem. Behav., 14, 345-351.

Ridley, R. M., Haystead, T. A. J. and Baker, H. F. (1981) A new approach to the role of noradrenaline in learning: problem solving in the marmoset after noradrenergic receptor blockade. Pharmacol. Biochem. Behav., 14, 849-855.

Owen, F., Baker, H. F., Ridley, R. M., Cross, A. J. and Crow, T. J. (1981) Effect of chronic amphetamine administration on central dopaminergic mechanisms in the vervet. Psychopharmacol., 74, 213-216.

Ridley, R. M., Baker, H. F. and Haystead, T. A. J. (1981) Perseverative behaviour after amphetamine; dissociation of response tendency from reward association. Psychopharmacol., 75, 283-286.

Ridley, R. M. and Baker, H. F. (1981) Stereotypy in monkeys and humans. Psychological Medicine, 12, 61-72.

Belchetz, P. E., Ridley, R. M. and Baker, H. F. (1982) Studies on the accessibility of prolactin and growth hormone to brain; effect of opiate agonists on hormone levels in serial, simultaneous plasma and cerebrospinal fluid samples in the rhesus monkey. Brain Research, 239, 310-314.

Ridley, R. M., Baker, H. F., Owen, F., Cross, A. J. and Crow, T. J. (1982) Behavioural and biochemical effects of chronic amphetamine treatment in the vervet monkey. Psychopharmacol., 78, 245-251.

Ridley, R. M. (1982) Psychostimulants. In: Psychopharmacology I' Part 1: Pre-clinical Psychopharmacology. Eds. D. G. Grahame-Smith, H. Hippius, and G. Winokur. Excerpta Medica. Amsterdam, pp. 152-259.

Baker, H. F., Ridley, R. M., Crow, T. J., Bloxham, C. A., Parry, R. P. and Tyrrell, D. A. J. (1983) An investigation of the effects of intracerebral injection into the marmoset of cytopathic cerebrospinal fluid from patients with schizophrenia or neurological disease. Psychological Medicine, 13, 499-511.

Baker, H. F., Ridley, R. M., Haystead, T. A. J. and Crow, T. J. (1983) Further consideration of the learning impairment after aceperone in the marmoset: effects of the drug on shape and colour discrimination and on an alternation task. Pharmacol. Biochem, Behav., 18, 701-704.

Flecknell, P. A., Parry, R., Needham, J. R., Ridley, R. M., Baker, H. F. and Bowes, P. (1983) Respiratory disease associated with parainfluenza type 1 (Sendai) virus in a colony of marmosets (C. jacchus) Lab. Animals, 17, 111-113.

Owen, F., Ridley, R. M., Baker, H. F., Cross, A. J. and Crow, T. J. (1983) Effect of chronic amphetamine treatment on dopaminergic mechanisms in vervet brain: relationship to findings in brains of schizophrenics. Biochem. Soc. Trans., 11, 68-69.

Ridley, R. M., Baker, H. F,. Owen, F., Cross, A. J. and Crow, T. J. (1983) Behavioural and biochemical effects of chronic treatment with amphetamine in the vervet monkey. Neuropharmacology, 22, 551-554.

Ridley, R. M. and Baker, H. F. (1983) Is there a relationship between social isolation, cognitive inflexibility and behavioural stereotypy? In 'Primate Ethopharmacology: models of neuropsychiatric disease'. Ed. K.A. Miczek. Alan R. Liss Inc. New York. pp. 101-136.

Annett, L. E., Ridley, R. M., Gamble, S. J. and Baker, H. F. (1983) Behavioural effects of intracerebral amphetamine in the marmoset. Psychopharmacology, 81, 18-23.

Baker, H. F., Bloxham, C., Crow, T. J., Davies, H., Ferrier, I. N., Johnstone, E. C., Parry, R. P., Ridley, R. M., Taylor, G. R. and Tyrrell, D. A. J. (1983) The viral hypothesis of schizophrenia: some experimental approaches in 'Research on Viral Hypothesis of Mental Disorders Ed. P. Morozov Advances in Biological Psychiatry, 12, 1-19.

Ridley, R. M., Barratt, N. G. and Baker, H. F. (1984) Cholinergic learning deficits in the marmoset produced by scopolamine and ICV hemicholinium. Psychopharmacology, 83, 340-345.

Ridley, R. M., Bowes, P. M., Baker, H. F. and Crow, T. J. (1984) An involvement of acetylcholine in object discrimination learning and memory in the marmoset. Neuropsychologia, 22, 253-263.

Ridley, R. M. (1985) Psychostimulants. In: Psychopharmacology 2, Part 1. Preclinical Psychopharmacology. Eds. D.G. Grahame-Smith, H. Hippius,and G Winokur, Excerpta Medica, Amsterdam. pp. 183-205.

Baker, H. F., Ridley, R. M. and Crow, T. J., (1985) Experimental transmission of an autosomal dominant spongiform encephalopathy: does the infectious agent originate from the human genome? British Medical Journal, 291, 299-302.

Ridley, R. M., Baker, H. F., Drewett, B. and Johnson, J. A. (1985) Effects of ibotenic acid lesions of the basal forebrain on serial reversal learning in marmosets. Psychopharmacology, 86, 438-443.

Ridley, R. M., Baker, H. F. and Crow, T. J. (1985) Virogenes in scrapie and Creutzfeldt-Jakob disease. J. Royal Society of Medicine, 78, 970.

Baker, H. F., Ridley, R. M. and Crow, T .J. (1985) Creutzfeldt-Jakob disease. British Medical Journal, 291, 822.

Ridley, R.M., Baker, H.F. and Crow, T.J. (1986) Transmissible and non-transmissible dementia: similarities in age of onset and genetics in relation to aetiology, Psychological Medicine, 16, 199-207.

Ridley, T.M., Murray, T.K., Johnson, J.A. and Baker, H.F. (1986) Learning impairment following lesion of the basal nucleus of Meynert in the marmoset: modification by cholinergic drugs. Brain Research, 376, 108-116.

Crow, T.J., Baker, H.F. and Ridley, R.M. (1986) Integrated viral genes and the age-dependent onset of neuropsychiatric disease. Modern Trends in Aging Research, 147, 559-563.

Baker, H.F. and Ridley, R.M. (1986) Use of the marmoset (Callithrix jacchus) in psychopharmacological research. In 'Working Methods in Multidisciplinary Psychopharmacology'. Eds J.L. Waddington, and M H Joseph. Oxford University Press.

Ridley, R.M., Baker, H.F. and Crow, T.J. (1986) Transmission studies of psychiatric and neurological disease: some reflections on the nature of the agent in transmissible dementia and the pathogenesis of neurodegenerative disease. In: Viruses, Immunity and Mental Health. Ed. E. Kurstak, Z.J. Lipowski, P.V. Morozov. Plenum Press, New York, pp. 33-46.

Ridley, R.M., Baker, H.F. and Drewett B. (1987) Effects of arecoline and pilocarpine on learning ability in marmosets pretreated with hemicholinium-3. Psychopharmacology, 19, 512-514.

Ridley, R.M., Samson, N.A., Baker, H.F. and Johnson, J.A. (1988) Visuospatial learning impairment following lesion of the cholinergic projection to the hippocampus. Brain Research, 456, 71-87.

Ridley, R.M., Frith, C.D., Crow, T.J. and Conneally, P.M. (1988) Anticipation in Huntington's Disease is inherited through the male line but may originate in the female. J. Med. Genetics, 25, 589-595.

Ridley, R.M., Baker, H.F. and Murray, T.K. (1988) Basal nucleus lesions in monkeys: recognition memory impairment or visual agnosia? Psychopharmacology, 95, 289-290.

Ridley, R.M., Baker, H.F., Frith, C.D., Dowdy, J. and Crow, T.J. (1988) Stereotyped responding on a two choice guessing task by marmosets and humans treated with amphetamine. Psychopharmacology, 95, 560-564.

Baker, H.F. and Ridley, R.M. (1988) Bovine spongiform encephalopathy. British Medical Journal, 297, 133.

Ridley, R.M., Baker, H.F. and Fine, A. (1988) Transplantation of fetal tissue. British Medical Journal, 296, 1469.

Owen, F., Poulter, M., Lofthouse, R., Collinge, J., Crow, T.J., Risby, D., Baker, H.F., Ridley, R.M., Hsiao, K. and Prusiner, S.B. (1989) Insertion in prion protein gene in familial Creutzfeldt-Jakob disease. Lancet, i, 51-52.

Ridley, R.M., Baker, H.F. and Crow, T.J. (1989) Experimental transmission and autosomal dominant inheritance of the Gerstmann-Straussler Syndrome: implications for the genetics and aetiology of neurodegenerative diseases. In ‘Unconventional Virus Diseases of the Central Nervous System’. Eds L.A. Court. D. Dormont, P. Brown and D.T. Kingsbury Commissariat de l'Energie Atomique, Paris. pp 123-141.

Baker, H.F. and Ridley, R.M. (1989) Disruption of the central cholinergic system in animals: models of dementia and amnesia. Current Problems in Neurology, 11,107-124.

Annett, L.E., Dunnett, S.B., Rogers, D.C., Ridley, R.M., Baker, H.F., Jenner, P. and Marsden, C.D. (1989) A behavioural model for studying dopaminergic grafts in the marmoset. In 'Neural Mechanisms of Disorders of Movement'. Ed. A.R. Crossman. John Libbey. London, pp 217-221.

Baker, H.F., Ridley, R.M., Crow, T.J. and Tyrrell, D.A.J. (1989) A re-investigation of the behavioural effects of intracerebral injection in marmosets by cytopathic cerebrospinal fluid from patients with schizophrenia or neurological disease. Psychological Medicine, 19, 325-329.

Annett, L.E., Ridley, R.M., Gamble, S.J. and Baker, H.F. (1989) Social withdrawal following amphetamine administration to marmosets. Psychopharmacology, 99, 222-229.

Ridley, R.M., Aitken, D.M. and Baker, H.F. (1989) Learning about rules but not about reward is impaired following lesions of the cholinergic projection to the hippocampus. Brain Research, 502, 306-318.

Ridley, R.M. and Baker, H.F. (1990) Variable expression in the functional psychoses: a comparison with Huntington's disease. Schizophrenia Research, 3, 201-210.

Owen, F., Poulter, M., Shah, T., Collinge, J., Lofthouse, R., Baker, H.F., Ridley, R.M., McVey, J and Crow, T.J. (1990) In-frame insertion in the prion protein gene in familial Creutzfeldt-Jakob Disease. Mol. Brain Research, 7, 273-276.

Annett, L.E., Dunnett, S.B., Martel, F.L., Rogers. D.C., Ridley, R.M., Baker, H.F. and Marsden, C.D. (1990) A functional assessment of embryonic dopaminergic grafts in the marmoset. Progress in Brain Research, 82, 535-542.

Ridley, R.M. and Baker, H.F. (1990) Implications of age of onset for the genetics of schizophrenia. Biological Psychiatry, 28, 455-458.

Baker, H.F., Duchen, L.W., Jacobs, J.M. and Ridley, R.M. (1990) Spongiform encephalopathy transmitted experimentally from Creutzfeldt-Jakob and familial Gerstmann-Straussler-Scheinker Disease. Brain, 113, 1891-1909.

Ridley, R.M. (1990) Risk factors in human spongiform encephalopathies. Agriculture Committee Report on Bovine Spongiform Encephalopathy. House of Commons Paper 449.

Baker, H.F. and Ridley, R.M. (1990) The mystery of CJD unfolds. Medical Monitor 3, (35) 26-28.

Ridley R.M and Baker H.F. (1990) New neurones for old. Medical Monitor 3, (47) 44-46.

Ridley, R.M. and Baker, H.F. (1991) A critical evaluation of primate models of amnesia and dementia. Brain Research Reviews, 16, 15-37.

Ridley, R.M., Thornley, H.D., Baker, H.F. and Fine A. (1991) Cholinergic neural transplants into hippocampus restore learning ability in monkeys with fornix transections. Exp. Brain Research, 83, 533-538.

Ridley, R.M., Frith, C.D., Farrer, L.A. and Conneally, P.M. (1991) Patterns of inheritance of the symptoms of Huntington's disease suggestive of an effect of genomic imprinting. J. Med. Genetics, 28, 224-231.

Baker, H.F. and Ridley R.M. (1991) Human spongiform encephalopathies. Chemistry & Industry, 5, 163-168.

Ridley, R.M. and Baker, H.F. (1991) Can fetal neural transplants restore function in monkeys with lesion-induced behavioural deficits? Trends in Neuroscience, 14, 366-370.

Baker, H.F., Poulter, M., Crow, T.J., Frith, C.D., Lofthouse, R., Ridley, R.M., Collinge, J. (1991) Amino acid polymorphism in human prion protein and age at death in inherited prion disease. Lancet. 337, 1286.

Ridley, R.M., Farrer, L.A., Frith, C.D., Conneally, P.M. (1991) A test of the hypothesis that age of onset in Huntington's disease is controlled by an X-linked recessive modifier. Am J. Hum. Genetics, 50, 536-543.

Ridley, R.M., Baker, H.F. and Fine A. (1991) Cholinergic controversies. Trends in Neuroscience, 14, 482-483.

Ridley, R.M., Baker, H.F., Poulter, M., Lofthouse, R., Owen, F., Collinge, J. and Crow T.J. (1991) Genetics of Human Transmissible Dementia. Current Topics in Veterinary Medicine and Animal Science, 55, 203-218.

Frith, C.D., Cahill, C., Ridley, R.M. and Baker, H.F. (1992) Memory for what it is and memory for what it means: a single case of Korsakoff's amnesia. Cortex, 28, 53-67.

Annett, L.E. and Ridley, R.M. (1992) Neural Transplantation in Primates. In 'Neural Transplantation. A Practical Approach.' Eds. S.B. Dunnett and A Bjorklund. Oxford Univ. Press. pp 123-137.

Ridley, R.M., Gribble, S., Clark, B., Baker, H.F. and Fine A. (1992) Restoration of learning ability in fornix-transected monkeys after fetal septal but not fetal hippocampal tissue transplantation. Neuroscience, 48, 779-792.

Poulter, M., Baker, H.F., Frith, C.D., Leach, M., Lofthouse, R., Ridley, R.M. et al (1992) Inherited prion disease with 144 base pair insertion: I Genealogical and molecular Studies. Brain, 115, 675-685.

Collinge, J., Brown, J., Hardy, J., Mullan, M., Rossor, M.N., Baker, H.F., Crow, T.J., Lofthouse, R., Poulter, M., Ridley, R.M. et al. (1992) Inherited prion disease with 144 base pair insertion: II. Clinical and neuropathological features. Brain, 115, 687-710.

Baker, H.F. and Ridley, R.M. (1992) The genetics and transmissibility of spongiform encephalopathy. Neurodegeneration, 1, 3-16.

Ridley, R.M. and Baker H.F. (1992) BSE - a bizarre epidemic. MRC News, 55, 10-11.

Ridley, R.M. and Baker, H.F. (1992) Fetal neural transplants and cognition. Neuroscience Facts, 3, 5.

Ridley, R.M., Frith, C.D. and Conneally, P.M. (1992) Non-Mendelian features of the inheritance of Huntington's disease: a possible example of genomic imprinting. Seminars in Developmental Biology, 3, 127-137.

Baker, H.F. and Ridley, R.M. (1992) Neural transplantation in primates: towards brain repair in humans. Reviews in Neurosciences, 3, 175-190.

Crow, T.J., Poulter, M., Baker, H,F., Frith, C.D., Leach, M., Lofthouse, R., Ridley, R.M., Shah, T., Owen, F., Collinge, J., Brown, G., Hardy, J., Mullan, M.J., Harding, A,E., Bennett, C. and Doshi R. (1992) Familial dementia in relation to the 144bp insert and its implications. In. 'Prion Diseases in Humans and Animals'. Eds S. B. Prusiner, J. Collinge, J. Powell & B. Anderton. Ellis Horwood Ltd. UK. pp 200-214.

Wisniowski, L., Ridley, R.M., Baker, H.F. and Fine, A. (1992) Tyrosine hydroxylase immunoreactive neurones in the nucleus basalis of the common marmoset (Callithrix jacchus). J. comp. Neurol, 25, 379-387.

Ridley R.M. (1992) How do monkeys remember the world? Behavioral and Brian Sciences, 15, 166.

Ridley, R.M., Clark, B.A., Durnford, L.J. and Baker H.F. (1993) Stimulus-bound perseveration after frontal ablations in marmosets. Neuroscience, 52, 596-604.

Baker, H.F., Ridley, R.M. and Wells, G.A.H. (1993) Experimental transmission of BSE and scrapie to the common marmoset. Veterinary Record, 132, 403-406.

Ridley, R.M. and Baker, H.F. (1993) Occupational risk of Creutzfeldt-Jakob disease. Lancet, 341, 641-642.

Ridley, R.M., Baker, H.F., Dunnett, S.B. and Annett, L.E. (1993) Tissue transplants for PD. Neurology, 44, 573.

Baker, H.F., Ridley, R.M., Duchen, L.W., Crow, T.J. and Bruton, C.J. (1993) Evidence for the experimental transmission of cerebral -amyloidosis to primates. Int. J. Exp. Path., 74, 441-453.

Ridley, R.M. and Baker, H.F. (1993) Behavioral effects of cholinergic grafts. Ann. N.Y. Acad. Sci., 695, 274-277.

Baker, H.F., Ridley, R.M., Duchen, L.W., Crow, T.J., and Bruton, C.J. (1993) Experimental induction of -amyloid plaques and cerebral angiopathy in primates. Ann. N. Y. Acad. Sci. 695, 232-235.

Ridley, R.M. and Baker, H.F. (1993) Genetics of human prion disease. Dev. Biol. Stand., 80, 9-17.

Ridley, R.M. and Baker, H.F. (1993) Assessing memory in monkeys. In 'Behavioural Neuroscience: A Practical Approach'. Ed. A. Sahgal. Oxford University Press. pp149-162.

Ridley, R.M., Durnford, L.J., Baker, J.A. and Baker, H.F. (1993) Cognitive inflexibility after archicortical and paleocortical prefrontal lesions in marmosets. Brain Res., 628, 56-64.

Ridley, R.M. and Baker, H.F. (1993) Prion protein: a different concept of replication. Trends in Neuroscience, 16, 425-426.

Annett, L.E., Martel, F.L., Rogers, D.C., Ridley, R.M., Baker, H.F. and Dunnett S.B. (1994) Behavioural assessment of the effects of embryonic nigral grafts in marmosets with unilateral 60HDA lesions of the nigrostriatal pathway. Expt. Neurol., 125, 228-246.

Ridley, R. M. and Baker, H. F. (1994) Cognitive function after intracerebral grafting in monkeys. Advances in Neuroscience, 2, 327-346.

Baker, H.F., Ridley, R.M., Duchen, L.W., Crow, T.J. and Bruton, C.J. (1994) Induction of -amyloid in primates by injection of Alzheimer's disease brain homogenate: comparison with transmission of spongiform encephalopathy. Mol. Neurobiol., 8, 25-40.

Ridley, R.M., Baker, H.F., Annett, L.E., Dunnett, S.B., Torres, E.M. and Fine, A. (1994) Behavioural assessment of the ability of intracerebral fetal neural grafts to ameliorate the effects of brain damage in primates. Mol. Neurobiol., 9, 207-223

Ridley, R.M. (1994) The psychology of perseverative and stereotyped behaviour. Progress in Neurobiology., 44, 221-231.

Ridley, R.M. (1994) Perceptions of prion disease. J. Clin. Pathol., 47, 876-879.

Ridley, R.M. (1994) Defining the limits of prion disease. Neuropathology and Applied Neurobiology, 20, 339-343.

Ridley, R. M., Baker, J. A., Baker, H.F. and Maclean, C. J. (1994) Restoration of cognitive abilities by cholinergic grafts in cortex of monkeys with lesions of the basal nucleus of Meynert. Neuroscience, 63, 635-666.

Baker, H.F. and Ridley, R.M. (1995) Intracerebral transplantation and functional recovery. In 'Molecular Neuropathology'. Ed G. W. Roberts and J. M. Polak. Cambridge University Press. pp. 138-155.

Ridley, R.M., Timothy, C.J., Maclean, C.J. and Baker, H.F. (1995) Conditional learning and memory impairments following neurotoxic lesion of the CA1 field of the hippocampus. Neuroscience, 67, 263-275.

Annett, L.E., Torres, E.M., Ridley, R.M., Baker, H.F. and Dunnett, S.B. (1995) A comparison of the behavioural effects of embryonic nigral grafts in the caudate nucleus and in the putamen of marmosets with unilateral 6-OHDA lesions. Expt. Brain Res. 103, 335-371.

Baker, H.F. and Ridley, R.M. (1995) Cholinergic grafts in primates. In 'Neurobiology of Alzheimer's Disease' Ed. D. Dawbarn and S. J. Allen. Bios Scientific Publishers. Oxford UK. pp 223-247.

Murray, T.K., Ridley, R.M., Snape, M.F. and Cross, A.J. (1995) The effect of dizocilpine (MK801) on spatial and visual discrimination tasks in the rat. Behavioural Pharmacology, 6, 1-10.

Ridley, R.M. and Baker, H.F. (1995) The myth of maternal transmission of spongiform encephalopathy. British Medical Journal, 311, 1071-1075.

Ridley, R. M. and Baker, H. F. (1995) Who gets Creutzfeldt-Jakob disease? British Medical Journal, 311, 1419.

Ridley, R.M. and Baker, H.F. (1996) Aetiology of scrapie in certain circumstances is not evidence against another aetiology in different circumstances. British Medical Journal. 312, 180.

Baker, H.F and Ridley, R.M. (1996) Prion Diseases. Humana Press, Totowa, New Jersey.

Ridley, R.M. and Baker, H.F. (1996) The paradox of prion disease. In 'Prion Diseases'. Eds Baker H. F. and Ridley R. M. Humana Press Totowa New Jersey. pp 1-14.

Ridley, R.M., Baker, H.F., Harder, J.A. and Pearson, C. (1996) Effects of lesions of different parts of the septo-hippocampal system in primates on learning and retention of information acquired before or after surgery. Brain Research Bulletin, 40, 21-32.

Baker, H.F. and Ridley, R.M. (1996) Creutzfeldt-Jakob disease and bovine spongiform encephalopathy: study so far provides no evidence for maternal and horizontal transmission. British Medical Journal, 312, 843.

Baker, H.F. and Ridley, R.M. (1996) What went wrong in BSE? From prion disease to public disaster. Brain Res Bulletin, 40, 237-244.

Ridley, R.M., Baker, H.F. and Windle, C.P. (1996) Failure to transmit bovine spongiform encephalopathy to marmosets with ruminant-derived meal. Lancet, 348, 56.

Marshall, J.W.B. and Ridley, R.M. (1996) Assessment of functional impairment following permanent middle cerebral artery occlusion in a non-human primate species. Neurodegeneration, 5, 275-286.

Harder, J.A., Maclean, C.J., Alder, J.T., Francis, P.T. and Ridley R.M. (1996) The 5-HT1A antagonist, WAY100635, ameliorates the cognitive impairment induced by fornix transection in the marmoset. Psychopharmacology, 127, 245-254.

Ridley, R.M. and Baker, H.F. (1996) To what extent is strain variation evidence for an independent genome in the agent of the transmissible spongiform encephalopathies? Neurodegeneration 5, 219-231.

Baker, H.F., Ridley, R.M., Wells, G.A.H. and Ironside, J.W. (1996) Spontaneous spongiform encephalopathy in a monkey. Lancet, 348, 955.

Ridley, R.M. and Baker, H.F. (1996) No maternal transmission? Nature 384, 17.

Ridley, R.M. and Baker, H.F. (1996) Oral transmission of BSE to primates. Lancet, 348, 1174.

Ridley, R.M., Harder, J.A. and Baker H.F. (1996) Neurochemical modulation of the hippocampus in learning, remembering and forgetting in primates. Neurodegeneration, 5, 467-471.

Ridley, R.M. and Baker, H.F. (1996) Variation on a theme of Creutzfeldt-Jakob disease; implications of new cases with a young age at onset. J gen Virol., 77, 2895-2904.

Ridley, R.M. and Baker, H.F. (1997) Evidence for a specific information processing deficit in monkeys with lesions of the septo-hippocampal system. Cortex, 33, 167-176.

Maclean, C.J., Baker, H.F., Fine, A. and Ridley, R.M. (1997) The distribution of p75 neurotrophin receptor-immunoreactive cells in the forebrain of the common marmoset (Callithrix jacchus). Brain Res Bull., 43, 197-208.

Ridley, R.M., Pearson, C. Kershaw, T.R., Hodges, H., Maclean, C.J., Hoyle, C. and Baker, H.F. (1997) Learning impairment induced by lesion of the CA1 field of the primate hippocampus: attempts to ameliorate the impairment by transplantation of fetal CA1 tissue. Expt. Brain Research, 115, 83-94.

Ridley, R.M. and Baker, H.F. (1997) The nature of transmission in prion diseases. Neuropath and Applied Neurobiology, 23, 273-280.

Fine, A., Hoyle, C., Maclean, C.J., LeVatte, T.L., Baker, H. F. and Ridley, R. M. (1997) Learning impairments following injection of a selective cholinergic immunotoxin, ME20.4 IgG-saporin, into the basal nucleus of Meynert in monkeys. Neuroscience, 81, 331-343.

Murray, T.K. and Ridley, R.M. (1997) The effect of dizocilpine (MK801) on conditional discrimination learning in the rat. Behavioural Pharmacology, 8, 383-388.

Ridley, R.M. and Baker, H.F. (1998) Mental Representation in Human and Monkey Neuropsychology. In ‘Comparative Neuropsychology’. Ed. AD Milner. Oxford University Press. 245-270.

Annett, L.E., Torres, E.M., Clarke, D.J., Ishida, Y., Barker, R.A., Ridley, R.M., Baker, H.F. and Dunnett, S.B. (1998) Survival of nigral grafts within the striatum of marmosets with 6-OHDA lesions depends critically on donor embryo age. Cell Transplantation, 6, 556-569.

Ridley, R.M. and Baker, H.F. (1998) Fatal Protein. The story of CJD, BSE and other prion diseases. Oxford University Press.

Harder, J.A., Baker, H.F. and Ridley, R.M. (1998) The role of the central cholinergic projections in cognition: implications of the effects of scopolamine on discriminaton learning by monkeys. Brain Research Bulletin, 45, 319-326.

Ely, A., Freer, A., Windle, C. and Ridley, R.M. (1998) Assessment of cage-use by laboratory-bred common marmosets (Callithrix jacchus). Laboratory Animals, 32, 427-433

Kendall, A.L, Rayment, D., Torres, E.M, Baker, H.F., Ridley, R.M. and Dunnett, S.B. (1998) Functional integration of striatal allografts in a primate model of Huntington’s disease. Nature Medicine, 4, 727-730.

Harder, J.A. Aboobaker, A.A., Hodgetts, T.C. and Ridley, R.M. (1998) Learning impairment induced by glutamate blockade using dizocilpine (MK801) in monkeys. Brit J Pharm., 125, 1013-1018.

Baker, H.F., Ridley, R.M., Wells, G.A.H. and Ironside, J.W. (1998) Prion protein immunohistochemical staining in the brains of monkeys infected with transmissible spongiform encephalopathy. Neuropath and Applied Neurobiology, 24, 476-486.

Murray, T.K. and Ridley, R.M. (1999) The effect of excitotoxic hippocampal lesions on simple and conditional discrimination learning in the rat. Behavioural Brain Research, 99, 103-113.

Marshall, J.W.B., Cross, A.J., and Ridley, R.M (1999) Functional benefit from clomethiazole treatment after focal cerebral ischaemia in a non-human primate species. Expt Neurol., 156, 121-129.

Ridley, R.M., Barefoot, H., Maclean, C.J., Pugh, P. and Baker H.F. (1999) Different effects on learning ability following injections of the cholinergic immunotoxin, ME20.4 IgG-saporin, into the diagonal band of Broca, basal nucleus of Meynert, or both in monkeys. Behavioral Neuroscience, 113, 303-315.

Windle, C., Baker, H.F, Ridley, R.M., Oerke, A.-K. and Martin, R. (1999) Unrearable litters and prenatal reduction of litter size in the common marmoset. J Med Primatology, 28, 73-83.

Ridley, R.M. and Baker H.F. Big decisions based on small numbers: lessons from BSE. (1999) The Veterinary Quarterly, 21, 86-92.

Ridley, R.M., Pugh, P.L., Maclean, C.J., and Baker, H.F. (1999) Severe learning impairment caused by combined immunotoxic lesion of the cholinergic projections to the cortex and hippocampus in monkeys. Brain Res, 836, 120-138.

Virley, D., Ridley, R.M., Sinden, J.D., Harland, S., Williams, C., Rashid, T., Gray, J.A., Lantos, P.L. and Hodges, H. (1999) Primary CA1 and conditionally immortal MHP36 cell grafts restore conditional discrimination learning and recall in marmosets after excitotoxic lesions of the hippocampal CA1 field. Brain, 122, 2321-2335.

Marshall, J.W.B., Ridley, R.M. (1999) Primate models for studying functional recovery after drug treatment in stroke. Eur. Neuropsychopharmacology, 9, S191-S192.

Scott, M., Ridley, R.M, Baker, H.F., DeArmond, S.J. and Prusiner, S.B. (1999) Transgenic investigations of the species barrier and prion strains. In Prion Biology and Diseases. Ed S.B. Prusiner. Cold Spring Harbor Laboratory Press. 307-349.

Ridley, R.M. (2000) Variant CJD: Finding a needle in a haystack? Hospital Medicine, 61, 145.

Marshall, J.W.B., Cross, A.J., Jackson, D., Green, A.R. and Baker, H.F. and Ridley, R.M. (2000) Clomethiazole protects against hemineglect in a primate model of stroke. Brain Research Bulletin 52, 21-29.

Maclean, C.J., Baker, H.F., Ridley, R.M. and Mori, H. (2000) Naturally occurring and experimentally induced -amyloid deposits in the brains of marmosets (Callithrix jacchus). J Neural Transmission 107, 799-814.

Barefoot, H.C., Baker, H.F. and Ridley, R.M. (2000) Synergistic effects of unilateral immunolesions of the cholinergic projections from the basal forebrain and contralateral ablations of the inferotemporal cortex and hippocampus in monkeys. Neuroscience 98, 243-251.

Harder, J.A. and Ridley, R.M. (2000) The 5-HT1A antagonist, WAY 100 635, alleviates cognitive impairments induced by dizocilpine (MK-801) in monkeys. Neuropharmacology 39, 547-552.

Ridley, R.M., Baker, H.F. and Hodges, H. (2000) Functional reconstruction of the hippocampus. Progress in Brain Research 127, 431-459.

Marshall, J.W.B., Jones, E.J., Duffin, K.L., Curry, S.H. and Ridley, R.M. (2000) AR-R15896AR, a low affinity, use dependent, NMDA antagonist, is neuroprotective in a primate model of stroke. Journal of Stroke and Cerebrovascular Diseases 9, 303-312.

Marshall, J.W.B, Duffin, K.L., Green, A.R. and Ridley, R.M. (2001) NXY-059, a free radical trapper, markedly attenuates the functional deficits in a primate model of stroke. Stroke 32, 190-198.

Maclean, C.J., Gaffan, D., Baker, H.F. and Ridley, R.M. (2001) Visual discrimination learning impairments produced by combined transections of the anterior temporal stem, amygdala and fornix in monkeys. Brain Research 888, 34-50.

Ridley, R.M., Warner, K.A., Maclean, C.J., Gaffan, D. and Baker, H.F. (2001) Visual agnosia and Kluver-Bucy syndrome in marmosets (Callithrix jacchus) following ablation of inferotemporal cortex with additional mnemonic effects of immunotoxic lesions of cholinergic projections to medial temporal areas. Brain Research 898, 136-151.

Ridley, R.M. (2001) What would Thomas Henry Huxley have made of prion disease? In: Molecular Pathology of the Prions. (Ed. HF Baker), Humana Press, Totowa, New Jersey, pp 1-16.

Ramirez, M.J., Ridley, R.M., Baker, H.F., Maclean, C.J., Honer, W.G. and Francis, P.T. (2001) Chronic elevation of amyloid precursor protein in the neocortex or hippocampus of marmosets with selective cholinergic lesions. Journal of Neural Transmission 108, 809-826.

Ridley, R.M., Hardy, A., Maclean, C.J. and Baker, H.F. (2002) Non-spatial acquisition and retention deficits following small excitotoxic lesions within the hippocampus in monkeys. Neuroscience 107, 239-248.

Barefoot, H.C., Baker, H.F. and Ridley, R.M. (2002) Crossed unilateral lesions of temporal lobe structures and cholinergic cell bodies inmpair visuovisual conditional and discrimination learning in monkeys. European Journal of Neuroscience 15, 507-516.

Easton, A., Ridley, R.M., Baker, H.F. and Gaffan, D. (2002) Severe learning impairments after combined lesion of the cholinergic basal forebrain and fornix system in Rhesus monkeys. Cerebral Cortex 12, 729-736.

Ridley, R.M., Maclean, C.J., Young, F.M. and Baker, H.F. (2002) Learning impairments in monkeys with combined but not separate excitotoxic lesions of anterior and mediodorsal thalamic nucleus. Brain Research 950, 39-51.

Marshall, J.W.M., Baker, H.F. and Ridley, R.M. (2002) Contralesional neglect without misreaching in monkeys with small unilateral parietal cortical ablations. Behavioural Brain Research 136, 257-265.

Marshall, J.W.M. and Ridley, R.M. (2003) Assessment of Cognitive and Motor Deficits in a Marmoset Model of Stroke. International Laboratory Animal Research 44, 153-160.

Marshall, J.W.M., Green, A.R. and Ridley, R.M. (2003) Comparison of the protective effects of clomethiazole, AR-R15896AR, and NXY-059 in a primate model of stroke using histological and behavioural measures. Brain Research. 972, 119-126.

Barefoot, H.C., Maclean, C.J., Baker, H.F. and Ridley, R.M. (2003) Unilateral hippocampal and inferotemporal cortex lesions in opposite hemispheres impair learning of single-pair visual discrimination as well as visuovisual conditional tasks in monkeys. Behavioural Brain Research 141, 51-62.

Ridley, R.M. (2003) What would T.H. Huxley have made of prion disease? Molecular Biotechnology 24, 243-256.

Eslamboli, A., Baker, H.F., Ridley, R.M. and Annett, L.E. (2003) Sensorimotor deficits in a unilateral intrastriatal 6-OHDA partial lesion model of Parkinson’s disease in marmoset monkeys. Experimental Neurology 183, 418-429.

Marshall, J.W.M., Cummings, R.M., Bowes, L.J., Ridley, R.M. and Green, A.R. (2003) Functional and histological evidence for the protective effect of NXY-059 in a primate model of stroke when given 4 hours post-occlusion. Stroke 34, 2228-2233.

Marshall, J.W.M., Ridley, R.M., Baker, H.F., Hall, L.D., Carpenter, T.A. and Wood, N.I. (2003) Serial MRI, functional recovery, and long-term infarct maturation in a non-human primate model of stroke. Brain Res Bulletin 61, 577-585.

Eslamboli, A., Annett, L.E., Ridley, R.M., Baker, H.F., Kirik, D., and  Bjorklund, A. (2003) Recombinant adeno-associated-viral vector (rAVV) delivery of GDNF provides anatomical and behavioural protection against a 6-OHDA lesion in the common marmoset monkey (Callithrix jacchus). Expt Neurology 184, 536-548.

Scott, M., Peretz, D., Ridley, R.M., Baker, H.F., DeArmond, S.J. and Prusiner, S.B. (2004) Transgenic investigations of the species barrier and prion strains. In: Prion Biology and Diseases 2nd Ed. Cold Spring Harbor Laboratory Press. 435-482. 

Milton, A.L., Marshall, J.W.M., Cummings, R.M., and Baker, H.F. and Ridley, R.M. (2004) Dissociation of hemi-spatial and hemi-motor impairments in a unilateral primate model of Parkinson’s disease. Behavioural Brain Research 150, 55-63.

Hardy, A., Windle, C., Baker, H.F., and Ridley, R.M. (2004) Assessment of preference for grid-flooring and sawdust-flooring by captive-bred marmosets in free-standing cages. Applied Animal Behaviour Science 85, 167-172.

Ridley, R.M. (2004) You can't set off until you know where to go:- delayed movement initiation in Parkinson's disease. The Psychologist 17, 216.

Ridley, R.M., Baker, H.F., Mills, D.A., Green, M.E., and Cummings, R.M. (2004) Topographical memory impairments after unilateral lesions of the anterior thalamus and contralateral inferotemporal cortex. Neuropsychologia 42, 1178-1191.

Ridley, R.M. and Baker, H.F. (2005) Exploring the role of acetylcholine in primate cognition using p75-saporin. In: Molecular Neurosurgery - the Use of Targeted Toxins. (Ed. Lappi, D.) pp101-142.

Mills, D.A., Windle, C.P., Baker, H.F., and Ridley, R.M. (2005) Analysis of infant-carrying in large, well-established family groups of captive marmosets (Callithrix jacchus). Primates 45, 259-265.

Ridley, R.M., Baker, H.F., Cummings, R.M., Green, M.E., and Leow-Dyke, A. (2005) Mild topographical memory impairment following crossed lesions of the mediodorsal thalamic nucleus and the inferotemporal cortex. Behavioral Neuroscience 119, 518-525.

Eslamboli, A., Georgievska, B., Ridley, R.M., Baker, H.F., Muzyczka, N., Burger, C., Mandel, R.J., Annett, L.E., and Kirik, D. (2005) Continuous low-level glial cell line-derived neurotrophic factor delivery using recombinant AAV vectors provides neuroprotection and induces behavioral recovery in a primate model of Parkinson's disease. Journal of Neuroscience 25, 769-777.

Ridley, R.M., Baker, H.F., Leow-Dyke, A., and Cummings, R.M. (2005) Further analysis of effects of immunotoxic lesions of the basal nucleus of Meynert reveals substantial impairment on visual discrimination learning in monkeys. Brain Research Bulletin 65, 433-442.

Ridley, R.M., Cummings, R.M., Leow-Dyke, A., and Baker, H.F. (2006) Neglect of memory after dopaminergic lesions in monkeys. Behavioural Brain Research 166, 253-266.

Ridley, R.M., Baker, H.F., Windle, C., and Cummings, R.M. (2006) Very long term studies of the seeding of -amyloidosis in primates. Journal of Neural Transmission  113, 1243-1251.

Eslamboli, A., Romero-Ramos, M., Burger, C., Bjorklund, T., Muzyczka, N. Mandel, R.J.,  Baker, H.F., Ridley, R.M., and Kirik, D. (2007) Long-term consequences of human alpha-synuclein over-expression in the primate ventral midbrain. Brain 130, 799-815.


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