The Education Of The Central Nervous System; A Study Of Foundations, Especially Of Sensory And…

Paperback | January 30, 2012

byReuben Post Halleck

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896. Excerpt: ... CHAPTER IX Cerebral Development By The Formation Of Images To have the various sensory stimuli pouring into the brain is but one-half the battle in modifying the central nervous system. In order to render this modification more definite and lasting, images of these various stimuli must be recalled. For instance, after a rose has been seen, its visual appearance, odour, and softness to the sense of touch should be recalled. A successful recall helps to modify the brain in the same way that the original stimulus did. This truth has received scant appreciation, even by physiological psychologists, in the training of the young. In order to understand the importance of recalling sensory stimuli, the physical basis of memory must be known. Let A be a' brain cell or tract which receives the modification due to seeing a rose. When the visual image of the rose is recalled, there is action in precisely this same tract. There is no absolute line of demarcation between the action in this tract, when the sensory stimulus pours directly in, and the action resulting from recalling this experience. For our purpose, we may call attention to a difference which usually exists. The presence of an actual object to a sense organ generally causes more intense action in the related brain cells than the internal revival does. If we are looking at an actual orange, certain brain cells are usually set in more vigorous action than when we recall the image of the orange. One of the ways by which we decide whether the action in the brain cells does or does not correspond to a real object is by the intensity of that action. If the action were of equal intensity in both cases, we should have an illusion, that is, think we saw an orange where none existed.1 In the case of sane persons, t...

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896. Excerpt: ... CHAPTER IX Cerebral Development By The Formation Of Images To have the various sensory stimuli pouring into the brain is but o...

Format:PaperbackDimensions:74 pages, 9.69 × 7.44 × 0.15 inPublished:January 30, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217347258

ISBN - 13:9780217347259

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