An anatomico-physiological study of the posterior longitudinal bundle in its relation to forced movements / by L.J.J. Muskens.

  • Muskens, Louis Jacob Josef, 1872-1937.
Date:
1914
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Licence: In copyright

Credit: An anatomico-physiological study of the posterior longitudinal bundle in its relation to forced movements / by L.J.J. Muskens. 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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    light of our results, it seems highly probable that Bernheimer [15] is right in believing that these impulses must travel along paths situated on the ventral side of the sylvian aqueduct. My experiments, taken in conjunction with those of Horsley and Sachs, lead to the supposition that the inner portion of the lenticular nucleus and its connexions with the nuclei of the posterior commissure are associated particularly with the conjugate deviation of the head and eyes towards the side of the lesion in the case of destruction, and towards the other side with electrical stimulation. Also Ferrier [54] found in the genu of the striate body a centre, electrical stimulation of which caused conjugate deviation from the side of stimulation. Clinical and anatomical observations also tend to corroborate this view. Uhthoff [157], in his interesting article dealing with a series of anatomical lesions in the cerebral hemisphere in man which had caused conjugate deviation during life, describes the lentiform nucleus, claustrum, internal capsule, optic thalamus, and caudate nucleus as being most frequently involved. Prevost and Broadbent had made similar remarks before. Hosel [72] also found that one of the first tracts to become medullated is that which connects the region anterior to the red nucleus with the globus pallidus. All this independent evidence seems to urge the necessity for a further investigation on the relationship between strial and cortical influx and the conjugate deviation of the head and eyes, from the newly acquired points of view. Chapter VII—Conjugate Deviation of Head and Eyes, and Different Forms of Nystagmus in Clinical Neurology. Their Localization Value. The physiological analysis of the posterior longitudinal bundle formation has undoubtedly an important bearing on the clinical problem, afforded by the conjugate deviation of both eyes in cerebral disease generally, and particularly in pontine disease involving the sixth nucleus. Unless the physiological analysis of this formation be taken into con- sideration it is impossible to explain the additional conjugate deviation of the heterolateral rectus internus, with the rectus externus of the diseased side in an organic affection of the sixth nucleus. Foville [58], Hughlings Jackson [74], Duval, Wernicke [166], Bleuler [25], Bruce [37], Bischoff, Spitzer [149] and others, accept the view that