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Owing to the difficulties of investigating the sensory organization of the nervous system experimentally, for many years experimental neurologists tended to direct their attention rather to the motor mechanisms, for these can easily be studied and recorded objectively. During the last few years, however, research investigations have been more concentrated on the anatomical basis of sensation and, accordingly, this review will be mainly concerned with this aspect.
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W. E. Le Gros Clark (1944) studied this question.
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