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Sensory cortex and the mind-brain problem

Published online by Cambridge University Press:  04 February 2010

Roland Puccetti
Affiliation:
Department of Philosophy, Dalhousie University, Halifax, N.S., Canada
Robert W. Dykes
Affiliation:
Department of Physiology and Biophysics, Dalhousie University, Halifax, N.S., Canada

Abstract

One of the implicit, and sometimes explicit, objectives of modern neuroscience is to find neural correlates of subjective experience so that different qualities of that experience might be explained in detail by reference to the physical structure and processes of the brain. It is generally assumed that such explanations will make unnecessary or rule out any reference to conscious mental agents. This is the classic mind-brain reductivist program. We have chosen to challenge the optimism underlying such an approach in the context of sensory neurophysiology and sensory experience. Specifically, we ask if it is possible to explain the subjective differences among seeing, hearing, and feeling something by inspecting the structure and function of primary visual, auditory, and somesthetic cortex.

After reviewing the progress in localization of sensory functions over the past two centuries and examining some aspects of the structure and function of somesthetic, auditory, and visual cortex, we infer that one cannot explain the subjective differences between sensory modalities in terms of present day neuroscientific knowledge. Nor do present trends in research provide grounds for optimism.

At this point we turn to three philosophical theories to see what promise they hold of explaining these differences. A brief discussion of each – identity theory, functionalism, and eliminative materialism – suggests that none adequately accounts for the facts of the situation, and we tentatively conclude that some form of dualism is still a tenable hypothesis.

Type
Target Article
Copyright
Copyright © Cambridge University Press 1978

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References

REFERENCES

Adrian, E. D.Afferent discharges to the cerebral cortex from peripheral sense organs. Journal of Physiology. 100:159–91. 1941.CrossRefGoogle Scholar
Adrian, E. D.The Physical Background of Perception. Oxford: Clarendon Press, 1946.Google Scholar
Bailey, P., and Von Bonin, G.The Isocortex of Man. Urbana, Ill.: University of Illinois Press, 1951.Google Scholar
Bard, P.Studies on the cortical representation of somatic sensibility. Bulletin of the New York Academy of Medicine. 14:585607. 1938.Google ScholarPubMed
Boring, E. G.Sensation and Perception in the History of Experimental Psychology. New York: Appleton-Century Crofts, 1942.Google Scholar
Brindley, G. S., and Lewin, W. S.The sensations produced by electrical stimulation of the visual cortex. Journal of Physiology. 196:479–93. 1968.CrossRefGoogle ScholarPubMed
Brodmann, K.Vergleichende Lokalisationslehre der Grosshirnrinde. 1909. Trans, by G. Von Bonin. In: Nowinki, W. W. (ed.), Some Papers on the Cerebral Cortex. Springfield, Ill.: C. C. Thomas, 1960.Google Scholar
Campbell, A. W.Histological Studies on the Localization of Cerebral Function. Cambridge: Cambridge University Press, 1905.Google Scholar
Celesia, G. G., Broughton, R. J., and Rasmussen, T.Auditory evoked responses from the exposed human cortex. Electroencephalography and Clinical Neurology 24:458–66. 1968.CrossRefGoogle ScholarPubMed
Creutzfeldt, O. D.Generality of the functional structure of the neocortex. Naturwissenschaften 64:507–17. 1977.CrossRefGoogle ScholarPubMed
Crosby, E. C., Humphrey, T., and Laurer, E. W.Correlative Anatomy of the Human Nervous System. New York: Macmillan, 1962.Google Scholar
Dobelle, W. H., Stenisaas, S. S., Mladjevosky, M. G., and Smith, J. B.A prosthesis for the deaf based on cortical stimulation Annals of Otolaryngology 82:445–63. 1973.Google ScholarPubMed
Dykes, R. W.Anatomy and physiology of the somesthetic cortical areas. Progress in Neurobiology. 10:3388. 1978.CrossRefGoogle Scholar
Edwards, J. S., and Palka, J. Neural generation and regeneration in insects. In: Fentress, J. C. (ed.), Simpler Networks and Behaviors. Sunderland, Mass.: Sinauer Associates, 1976.Google Scholar
Feigl, H. The “mental” and the “physical”. In: Feigl, H., Serivan, M., and Maxwell, G. (eds.) Minnesota Studies in the Philosophy of Science, vol. 2, Minneapolis: University of Minnesota Press, 1958.Google Scholar
Ferrier, D.The Function of the Brain. London: Smith, Elder & Co., 1876. Reprinted by Jos. Adams, Brussels, 1966.CrossRefGoogle Scholar
Flourens, P. Recherches experimentales sur les propriétés et les functions du système nerveux dans les animaux vertébrés. Paris: Crevot, 1824. Portions trans, by G. Von Bonin. In: Nowinski, W. W. (ed.), Some Papers on the Cerebral Cortex. C. C. Thomas, Springfield, Ill.: C. C. Thomas, 1960.Google Scholar
Fodor, J. A.Psychological Explanation. New York: Random House, 1968.Google Scholar
Frege, G.Philosophical Writings of Gottlob Frege. Oxford: Blackwell, 1960.Google Scholar
Guth, L. (ed.) Growth and regeneration in the central nervous system. Experimental Neurology. 48 (3). 1975.CrossRefGoogle Scholar
Holmes, G.The organization of the visual cortex in man. Proceedings of the Royal Society B. 132:349. 1945.Google Scholar
Jackson, J. H. On the anatomical and physiological localization of movements in the brain. In: Taylor, J. (ed.), Selected Writings of John Hughlings Jackson, vol. I. London, Staples Press, 1958.Google Scholar
Jones, E. G.Lamination and differential distribution of thalamic afferents within the sensory-motor cortex of the squirrel monkey. Journal of Comparative Neurology. 160:167204. 1975a.CrossRefGoogle ScholarPubMed
Jones, E. G.Varieties and distribution of non-pyramidal cells in the somatic sensory cortex of the squirrel monkey. Journal of Comparative Neurology. 160:205–67. 1975b.CrossRefGoogle ScholarPubMed
Jones, E. G. and Powell, T.P.S. Anatomical organization of the somatosensory cortex. In: Iggo, A., (ed.), The Handbook of Sensory Physiology, vol. 2 Somatosensory System. Pp. 579620. New York: Springer-Verlag, 1973.Google Scholar
Jones, E. G., and Wise, S. P.Size, laminar and columnar distribution of efferent cells in the sensory-motor cortex of monkeys. Journal of Comparative Neurology. 175:391438. 1977.CrossRefGoogle ScholarPubMed
Keating, M. J. The formation of visual neuronal connections: An appraisal of the present status of the theory of neuronal specificity. In: Gottlieb, G. (ed.), Neural and Behavioral Specificity, vol. 3. Pp. 59110. New York: Academic Press, 1976.CrossRefGoogle Scholar
Lund, J. S.Organization of neurons in the visual cortex, area 17, of the monkey (Macaca mulatta). Journal of Comparative Neurology. 147:455–96. 1973.CrossRefGoogle ScholarPubMed
Lund, J. S. and Boothe, R. G.Interlaminar connections and pyramidal neuron organization in the visual cortex, area 17, of Macaque monkey. Journal of Comparative Neurology. 159:305–34. 1975.CrossRefGoogle Scholar
Marshall, W. H. and Talbot, S. A.Recent evidence for neural mechanisms in vision leading to a general theory of sensory acuity. Biological Symposia. 7:117–64. 1942.Google Scholar
Marshall, W. H., Woolsey, C. N., and Bard, P.Cortical representation of tactile sensibility as indicated by cortical potentials. Science 85:388–90. 1937.CrossRefGoogle ScholarPubMed
Merzenich, M. M., Kaas, J. H., Sur, M., and Lin, C.-S. Double representation of the body surface within cytoarchitectonic areas 3b and 1 in “SI” in the owl monkey (Aotus trivirgatus). Journal of Comparative Neurology. In Press.Google Scholar
Merzenich, M. M.Knight, P. L., and Roth, G. L.Representation of the cochlea within primary auditory cortex in the cat. Journal of Neurophysiology. 38:231–49. 1975.CrossRefGoogle ScholarPubMed
Mountcastle, V. B.The view from within: pathways to the study of perception. Johns Hopkins Medical Journal. 136:109–31. 1975.Google Scholar
Munk, H. Uber die Funktionen der Grosshirnrinde 3te Mitteilung. 1881 Trans, by G. Von Bonin. In: Norwinski, W. W. (ed.), Some Papers on the Cerebral Cortex, Springfield, Ill.: C. C. Thomas, 1960.Google Scholar
Netter, F.Ciba Collection of Medical Illustrations, vol. 1 Nervous System. N.Y.: Ciba, 1962.Google Scholar
Penfield, W.The Mystery of the Mind. Princeton, N.J.: Princeton University Press, 1975.Google Scholar
Penfield, W. and Rasmussen, T.The Cerebral Cortex of Man: A Clinical Study of Localization. New York: Macmillan, 1950.Google Scholar
Place, U. T.Is consciousness a brain process? British Journal of Psychology 47:4450. 1956.CrossRefGoogle ScholarPubMed
Rorty, R.Mind-brain identity, privacy and categories. Review of Metaphysics. 19:2454. 1965.Google Scholar
Shallice, T.Dual functions of consciousness. Psychological Review. 79:383–93. 1972.CrossRefGoogle ScholarPubMed
Sherrington, C. S.The Brain and its Mechanisms. Cambridge: Cambridge University Press, 1933.Google Scholar
Smart, J. J. C.Sensations and brain processes. Philosophical Review 68:141–56. 1959.CrossRefGoogle Scholar
Sperry, R. W.Neurology and the mind-brain problem. American Scientist 40:291312. 1952.Google Scholar
Sperry, R. W. A unifying approach to mind and brain: ten year perspective. In: Corner, M. A. and Swaab, D. F. (eds.) Perspectives in Brain Research. Progress in Brain Research 45. Amsterdam: Elsevier, 1976.Google Scholar
Talbot, S. A.A lateral localization in the cat's visual cortex. Federation Proceedings 1:84. 1942.Google Scholar
Talbot, S. A. and Marshall, W. H.Physiological studies on neural mechanisms of visual localization and discrimination. American Journal of Ophthalmology. 24:1255–64. 1941.CrossRefGoogle Scholar
Talbot, S. A.Physiological studies on neural mechanisms of visual localization and discrimination. American Journal of Ophthalmology. 27:213–15. 1942.Google Scholar
Teichman, J.The Mind and the Soul: an Introduction to the Philosophy of Mind. London: Routledge & Kegan Paul, 1974.Google Scholar
Temkin, O.Gall and the phrenological movement. Bulletin of the History of Medicine. 21:275321. 1947.Google ScholarPubMed
Vogt, C. and Vogt, O.. Allgemeinere Ergebnisse unsere Hirnforschung. I.V.M.J. Psych. Neurol. Lpz. 25:279461. 1919a.Google Scholar
Vogt, C. and Vogt, O.. Zur Lehre der Erkrankungen der Stiaren System. Zeitschriftfuer Psychologie und Neurologie (Lepzig) 25:626846. 1919b.Google Scholar
Walker, A. E.Stimulation and ablation, their role in the history of cerebral physiology. Journal of Neurophysiology. 20:435–49. 1957.CrossRefGoogle ScholarPubMed
Werner, G. The study of sensation in physiology: psychophysical and neurophysiologic correlations. In: Mountcastle, V. B. (ed), Medical Physiology. Pp 551–74. St. Louis: C. V. Mosby, 1974.Google Scholar
Woolsey, C. N. and Fairman, D.Contralateral, ipsilateral and bilateral representation of cutaneous receptors in somatic areas I and II of the cerebral cortex of pig, sheep and other mammals. Surgery. 19:684702. 1946.Google Scholar
Woolsey, C. N. and Walzl, E. M.Topical projection of nerve fibers from local regions of the cochlea to the cerebral cortex of the cat. Johns Hopkins Hospital Bulletin. 71:315–44. 1942.Google Scholar