Showing papers in "Electroencephalography and Clinical Neurophysiology in 1960"

TL;DR: A closer analysis of the data published by other authors indicates a definite topographic organization of different functions within the amygdala, although with some overlapping.

TL;DR: The visual system of the human infant appears to be physiologically more mature at birth than that of the cat and the rabbit, but the latter develop more rapidly postnatally, while individual differences are as striking in the human as they are in the other two species.

TL;DR: Since destruction of the medial region of the septum results in irreversible inhibition of the synchronized arousal pattern in all parts of the brain, it may be assumed that the pace-maker for this activity, from which waves travel to the hippocampus and diencephalon, is to be sought in this region.

TL;DR: Presumptive evidence that neurones of the portion of activating system remaining in the isolated cerebrum can assume rates of firing sufficient to activate the EEG is offered.

TL;DR: In this paper, the authors show that the distribution of reponses caudees ne semble pas spatialement organisee en fonction de la nature and du lieu des stimulations (absence de somatotopie).

TL;DR: Chang et al. as mentioned in this paper investigated the effect of facilitation in terms of augmentation of the cortical visuelle specifique and found that facilitation can significantly increase the amplitude of the voxelized response.

TL;DR: It is suggested that the rhythmic sensory after-discharge, as well as the alpha rhythm, in man, is related primarily to non-specific rather than to specific sensory systems of the brain.

TL;DR: A case has been described with distinct EEG findings in the manic and depressive states, where the record obtained during the depressive phase was within normal limits, whereas that obtaining during the manic phase showed clear paroxysmal activity.

TL;DR: At the Colloquium on Teaching Methods in Electroencephalography of the American EEG Society ( 1959), a strong plea was made for all EEG laboratories to give up their individually devised numbering systems and electrode placements and to adopt a common language and common system, namely, the 10-20 electrode system proposed by the International Federation (Jasper 1958).

TL;DR: Responses to clicks recorded from the brains of human patients did not seem to be confined to the posterior part of the superior temporal gyrus, but were located in a wider region including the insular cortex and immediate vicinity.

TL;DR: The results suggest that during natural sleep there is depression of activity in the non-specific afferent system, while activity in primary auditory pathways remains unchanged, differs in several respects from that observed during the anesthetic state.

TL;DR: There was some degree of similarity between the initial slow potential of the “on” and “off” response and (1) lambda waves and (2) responses to intermittent photic stimulation at low rate.

TL;DR: The synchronous action of two motor units, each belonging to one of two different muscles was compared with other synchronisation effects that have been observed in the blink reflex and in hemifacial spasm.

TL;DR: Various drugs that modified the state of arousal and respiration modified the electrical bursts; d-Amphetamine and trans-π-oxocamphor markedly increased the electrical burst activity while morphine, chlorpromazine, and alpha-chloralose depressed this activity.

TL;DR: The main results were points yielding escape at very low thresholds were clustered in the dorso-medial tegmentum just below the tectum and just lateral to the central grey, and some points yielded both moderate escape and moderate self-stimulation.

TL;DR: The EEG of cretinous rats given thyroid hormone from the age of 24 days was intermediate between that of normal and unmedicated animals while thyroidectomy, if delayed until 24 days old, was virtually without effect.

TL;DR: The authors believe that two factors play an important part in the precipitation of these seizure discharges: the arrival of specific afferents and the existence of cortical hyperexcitability, either diffuse or localized to this temporo-parieto-occipital region.

TL;DR: Two main categories of anteroposterior, spatio-temporal distribution were distinguished, one in which the instant of maximal amplitude of alpha waves became progressively later or earlier according to the proximity of the recording electrodes to the occiput, the other in which maximal amplitude occurred simultaneously in all channels.

TL;DR: Recordings of electrical activity in several brain areas of chronically-implanted monkeys were studied under some different conditioning procedures and the relation of these observations to the question of whether the brain changes in Pavlovian conditioning are like those of instrumental learning is discussed.

TL;DR: It is postulated that the penicillin evoked cortical discharge causes intense firing in cortico-thalamic neurones which have both inhibitory and excitatory synaptic endings in the somato-sensory relay nuclei, the inhibitory synapses predominant.

TL;DR: The cerebral cortical areas have been determined from which a behavior “attention” response can be induced by stimulation in the unanesthetized cat, and fear resulted from stimulation of the cingulate and temporo-occipital cortex.

TL;DR: For instance, this article found that alpha activity is associated with blocking or attenuation of the alpha rhythms, active vision producing the greater degree of change, while non-visual imagery was associated with their persistence.

TL;DR: The suggestion is made that this pattern indicates a relative ischemia of the Sylvian area which causes a functional disturbance of this region and may be a useful indicator of an impending decompensation of the cerebral circulation.

TL;DR: Four patients have been studied after hemispherectomy and the precise physical relationships of source, fluid, and electrodes were shown to be of greater importance, and the maximum change in form of the potential field was found over brain, where no alteration in the conducting medium had occurred.

TL;DR: The recovery of excitability after the passage of a propagated action potential was studied in fibres in human muscle stimulated directly by paired stimuli variable in strength and time interval to show evidence of facilitation subthreshold stimuli could evoke responses after a number of applications.

TL;DR: Evidence has been found suggesting that the predominance and longer persistence in the frontal areas of the slow disturbance following electrically induced seizures are related to the structural and functional organization of the brain rather than to a local action of the convulsant.