Results of hemisection of the spinal cord in monkeys / by Frederick W. Mott ; communicated by Professor Schäfer.
- Frederick Walker Mott
- Date:
- 1892
Licence: Public Domain Mark
Credit: Results of hemisection of the spinal cord in monkeys / by Frederick W. Mott ; communicated by Professor Schäfer. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
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![3 The accompanying diagrams explain the condition of Allochiria as observed in the animals experimented upon by me. Diagram I. Diagram II. Hemisection made in the dorsal or cervical regions at B on the right side. The animal would be unable to feel the clip on the left foot, and there would be no desire to remove it. When fixed on the right foot the impulses would pass up to the left hemisphere, and there would be no false projection outwards to the other foot, unless it be argued that, owing to the block in the motor path from the left hemisphere, the animal is unconscious of the existence of his leg, which is of course untenable. The clip is fixed on the sole of the right foot which is ])aralyzed by the hemisection of the right side of the cord. The impulses which travel up the posterior roots, and posterior columns of same side, arrive at the cell (c); the channel of least resistance is by the nerve process which this cell gives off to the hemisphere of the oirposite side, but owing to the block, the impulse passes by a connection h to the opposite side, by which connection it reaches the hemisphere of>the same side. Sensory impressions received in the right hemisphere are referred to impressions coming from the left the subject of Allochiria: ‘London Med. Record,’ 188.3, p. 4.38 ; Dr. Arm. Huhkk, in Zurich, ‘ Munch. Med. Woch,’ 1888, No. .34, p. 563, No. 35, p. 585; GEi.Lf:, ‘ Gaz. des Hop.,’ 1888, No. 11 ; Gell^, ' Lc Progres Medical,’ 1888, 6, 7, 8.] MDCC'CXCII.—B. F](https://iiif.wellcomecollection.org/image/b22297066_0037.jp2/full/800%2C/0/default.jpg)
