Place and modality analysis in nucleus of posterior commissure

Bowsher, David; Petit, D

doi:10.1113/jphysiol.1970.sp009036

Cited by 14 publications

(2 citation statements)

References 16 publications

(26 reference statements)

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“…Burton (1968) explored units in this region with respect to facial stimulation, and observed that response patterns varied with stimulus parameters, which is in accordance with the present findings. However, due to difference in experimental conditions, the only really valid comparisons which can be made are with our own investigations on other reticular regions (Bowsher et al 1968;Bowsher & Petit, 1970).…”

Section: Discussionmentioning

confidence: 99%

“…Our own experimental anatomical material in the cat con-DAVID BO WSHER firms the results obtained by Rossi & Brodal, and indicates that terminal degeneration in RC is denser than in the more rostrally placed gigantocellular terminal zone (GC). The present study was undertaken in order to examine the response properties of neurones in RC under conditions identical to those obtaining in our earlier investigations of the gigantocellular area (Bowsher et al 1968) and the nucleus of the posterior commissure (NCP) (Bowsher & Petit, 1970); a preliminary report on this work has already appeared (Bowsher, 1969).…”

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Place and modality analysis in caudal reticular formation

Bowsher¹

1970

The Journal of Physiology

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1. Evoked potentials and unit responses were studied under chloralose anaesthesia in a restricted region of the caudal bulbar reticular formation of the cat which is known anatomically to receive a preferential spinal input. 2. Responses were analysed in terms of place and sensory modality and show varying degrees of place and modality convergence, as well as preferential responses for certain loci of stimulation. 3. Evidence is presented which suggests that some unit responses are generated in dendrites. 4. The response properties of the whole population are compared with those obtained from other reticular regions in previous identical experimental series. It is shown that the integrated activity of the ascending reticular formation acting as a whole would enable the organism to discriminate, to a greater or lesser degree, place and modality from the convergent peripheral input to the reticular formation.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

Place and modality analysis in caudal reticular formation

Bowsher¹

1970

The Journal of Physiology

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A comparative study of spinal projections to the brain (except cerebellum) in three classes of poikilothermic vertebrates

Hayle¹

1973

J of Comparative Neurology

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Lesions were made at varying levels in the spinal cords of a number of dogfish, rudd, and frogs. After a suitable survival period the resulting fibre degeneration was demonstrated by means of a silver impregnation technique. The findings have provided experimental confirmation of a profuse spinal projection to the reticulair formation of the hindbrain in all three classes examined. These fibres were found to project to a constant sector of the reticular formation which closely corresponded not only between individual specimens of the same species, but between the three species, and which was situated ventrolaterally in the medulla oblongata. The density of this degeneration was always greatest in the caudal brainstelm and became progressively less at more rostra1 levels. All spinal projections to the reticular formation exhibited some degree of bilaterality, including those in specimens with lesions of hemisections or less.A spinotectal pathway was also demonstrated in certain specimens of dogfish. No involvement of cranial nerve nuclei was seen. These findings are discussed.

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Reticular Formation

Pompeiano¹

1973

Somatosensory System

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Place and modality analysis in nucleus of posterior commissure

Cited by 14 publications

References 16 publications

Place and modality analysis in caudal reticular formation

Place and modality analysis in caudal reticular formation

A comparative study of spinal projections to the brain (except cerebellum) in three classes of poikilothermic vertebrates

Reticular Formation

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