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Rene Descartes diagram of the human brain and eye, 1692. From Opera Philosophica by Rene Descartes. (Frankfurt-am-Main, 1692). Originally published in his Tractatus de homine. (Paris, 1664)
Rene Descartes illustration of the co-ordination of the senses, 1692. A visual stimulus travelling from the eye to the pineal gland, H, stops attention being given to an olfactory stimulus
Rene Descartes idea of vision, showing the function of the eye, optic nerve and brain, 1692. From Opera Philosophica by Rene Descartes. (Frankfurt-am-Main, 1692)
Descartes representation of the antagonistic eye muscles, 1692. When E is relaxed A is innervated. Rene Decartes (1596-1650)
Descartes idea of vision, 1692Descartes (1596-1650) idea of vision, [1692]. The passage of nervous impulses from the eye to the pineal gland and so to the muscles. From Rene Descartes Opera Philosophica (Tractatus de homine), 1692
Descartes idea of how eye passes impulse to brain and so directs a voluntary movement, 1692. French philosopher and scientist Rene Descartes (1596-1650)
Involuntary movement, Descartes idea of how impulses from the limbs reach the brain, 1692. French philosopher and scientist Rene Descartes (1596-1650) believed all nerves to be hollow
Diagram of Pavlovs findings on conditioned salivary reflex. D: organ of touch and temperature; N: 1-6 analysers; S: salivary gland; Q: saliva secreting centre in the medulla oblongata; M: muscle; R