Electrical Activity of the Cat's Brain

Gerard, R. W.; Marshall, Wade H.; Saul, Leon J.

doi:10.1001/archneurpsyc.1936.02260100002001

Cited by 102 publications

(18 citation statements)

References 23 publications

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“…In none of our patients did we find a clear-cut response to flash in the amygdala (FIGURE 12, lowest section). Evidence of some influence of flash on the amygdaloid complex has been reported in cats by Gerard, Marshall and Saul (1936), by Wendt and Albe-Fessard ( 1963), and by Macline and Segundo (1956). The latter authors, testing for the influence of flashes on unitary activity in the amygdaloid complex of cats, only rarely found any response and then only in units in the lateral nucleus.…”

Section: Studies Of Responses To Flash Recorded In Deep Structuresmentioning

confidence: 83%

Evoked Responses Recorded From the Depths of the Human Brain

Brazier

1964

Annals of the New York Academy of Sciences

128

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Section: Studies Of Responses To Flash Recorded In Deep Structuresmentioning

confidence: 83%

Evoked Responses Recorded From the Depths of the Human Brain

Brazier

1964

Annals of the New York Academy of Sciences

128

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“…workers (1,12,13,25,26) to map the representation of one or another sensory system in the cerebral cortex. So far as we are aware, the only previous instance of the application of this method to the cerebellum occurred in the studies of Gerard, Marshall and Saul (8). In their report of a rather general study of spontaneous and evoked electrical activity of the cat's brain these authors mention that "in three instances activity was recorded in the anterior part of the cerebellum" when sound stimuli were being used and they also state that when light was flashed in the eyes "activity was also traced to the cerebellum," but they make no further comment.…”

Section: Areasmentioning

confidence: 99%

Receiving Areas of the Tactile, Auditory, and Visual Systems in the Cerebellum

Snider¹,

Stowell²

1944

Journal of Neurophysiology

536

177

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“…There is evidence that collateral fibres link the optic pathway with these nuclei (Gerard, Marshall & Saul, 1936;Ingvar & Hunter, 1955) from which ascending fibres project to wide areas of the cortex. However, these pathways to the cortex are probably not cholinergic or responsible for the observed evoked increases in ACh release since Krnjevic & Phillis (1963a) found no close relation between cortical cells activated by stimulating the non-specific nuclei and unit sensitivity to iontophoretically applied ACh.…”

mentioning

confidence: 99%

The central release of acetylcholine during stimulation of the visual pathway

Collier¹,

Mitchell²

1966

The Journal of Physiology

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SUMMARY1. -In rabbits anaesthetized with Dial ACh has been collected from the surface of the cerebral cortex during stimulation of the visual pathways.2. The spontaneous release of ACh from the visual and non-visual areas of the cortex was found to be similar.3. Stimulation of the retinae by diffuse light produced a large increase in ACh release from the primary visual receiving areas (4.3 times the spontaneous release) and a smaller increase (1.9 times the spontaneous release) from other parts of the cortex.4. Direct unilateral electrical stimulation of the lateral geniculate body evoked a large increase in ACh release (3.4 times the spontaneous release) from the ipsilateral visual cortex and a smaller increase (1.7 times the spontaneous release) from the contralateral visual area and other regions of the cerebral cortex. The evoked increase from the contralateral cortex was not mediated by transcallosal pathways.5. The increase in ACh release evoked from the visual cortex by stimulation of the ipsilateral lateral geniculate body was dependent on the frequency of stimulation. The evoked release was smallest at low stimulus frequencies and increased to a maximum at 20 stimuli/sec.The evoked ACh release from other areas of the cortex was independent of the frequency at which the lateral geniculate body was stimulated.6. The possible central nervous pathways associated with the spontaneous release of ACh and the release evoked by stimulation of the eyes by light and by direct stimulation of the lateral geniculate body are discussed.7. It is concluded that two ascending cholinergic systems may be involved; the non-specific reticulo-cortical pathways responsible for the e.e.g arousal response, and the more specific thalamo-cortical pathways associated with augmenting and repetitive after-discharge responses. The first system is thought to be concerned with the small but widespread

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Electrical Activity of the Cat's Brain

Cited by 102 publications

References 23 publications

Evoked Responses Recorded From the Depths of the Human Brain

Evoked Responses Recorded From the Depths of the Human Brain

Receiving Areas of the Tactile, Auditory, and Visual Systems in the Cerebellum

The central release of acetylcholine during stimulation of the visual pathway

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