Effects of brain-stem stimulation upon hippocampal electrical activity, somatomotor reflexes and autonomic functions

Yokota, Toshikatsu; Fujimori, Bunichi

doi:10.1016/0013-4694(64)90071-9

Cited by 84 publications

(13 citation statements)

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“…the thalamus and medial and lateral geniculate bodies. In all species, the frequency of the theta rhythm thus elicited depends upon the nature and intensity of the stimulation; the higher the stimulus intensity, the higher the theta-rhythm frequency, with frequencies up to 12 Hz obtainable (e.g., Green and Arduini, 1954;Sailer and Stumpf, 1957;Yokota and Fujimori, 1964;Weiss, 1964;Anchel and Lindsley, 1972). On the basis of many such findings Stumpf (1965) concludes as follows: "Thus, the frequency of the hippocampal theta rhythm can be regarded as a sensitive index of the degree of reticular excitation.…”

Section: Discussionmentioning

confidence: 99%

Sniffing frequency ofTupaia belangeri: A measure of central nervous activity (Arousal)

Holst¹,

Kolb²

1976

J. Comp. Physiol.

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Summary. 1. The sniffing behavior of tree shrews of both sexes has been studied. A microphone bearing a piece of filter paper impregnated with the odor to be tested was placed beneath an opening in the floor of a passage attached to the home cage. The sniffs were recorded via the microphone on magnetic tape.2. Habituation of the animals to the test odors was apparent in the number of sniffs made during a given time. (a) During each experimental session the number of sniffs per unit time decreases progressively. In general more than 50% of all sniffs counted during a 30 min session occurred within the first minute, and more than 80% during the first 5 min. The bursts of sniffing were nearly constant in length (cf. Fig. 2), while the pauses between bursts became longer. (b) When a given test odor was presented repeatedly on successive days, the total number of sniffs decreased from one experiment to the next, after a few days reaching a "basal level" which then remained nearly constant (Fig. i). (c) A new odor in the same category produces an increase in number of sniffs per session, but not to the level associated with the first test of the preceding odor (Fig. 1). In subsequent sessions the animal again habituates to the stimulus.3. The basal level of sniffs per session in response to a great variety of odors is the same for a given animal, but individuals differ in their basal levels (Table 1). Changes in excitatory state of an individual produce no change in number of sniffs per session.4. "Sniffing frequency" -the frequency of sniffs within a burst-however, is less variable than the total number of sniffs over a longer period. (a) Within the individual sniffing bursts, the inter-sniff interval is nearly constant (SD for 113 bursts 4.3_ 0.2% ; cf. Fig. 2). (b) Throughout a given experimental session, sniffing frequency, within the many bursts, was about constant (SD for 425 experiments: < 3%). (c) When experiments are repeated under identical conditions, the sniffing frequencies measured in each are approximately the same.

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Section: Discussionmentioning

confidence: 99%

Sniffing frequency ofTupaia belangeri: A measure of central nervous activity (Arousal)

Holst¹,

Kolb²

1976

J. Comp. Physiol.

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“…Some results from animal studies gave rise to the hypothesis that the hippocampus has an inhibiting effect on EDA. Yokota, Sato, and Fujimori (1963) and Yokota and Fujimori (1964) found an inhibiting influence when stimulating the hippocampus in nonanesthetized curarized cats. However, such an influence could not be confirmed in monkeys, in which Bagshaw et al (1965) did not find any influence on EDRs when bilateral hippocampus lesions existed.…”

Section: Subcortical Control Of Edamentioning

confidence: 98%

Electrodermal Activity

Boucsein

2012

1,564

1,589

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except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights.Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) Foreword to the Second EditionAs noted by David Lykken in the foreword to the first edition of this book, electrodermal activity was observed for the first time in Germany. A quartercentury later the scientific study of psychology also originated in Germany. Over time, however, the focus of psychological research, including the then new field of psychophysiology, shifted to the United States and Great Britain. This trend to the dominance of the United States and Great Britain was prolonged by the devastation of World War II and its aftermath in Germany (and elsewhere in continental Europe). Slowly at first and then more rapidly, German psychological science, including psychophysiology, recovered. For several decades German psychophysiologists have been a major force in psychophysiology. With the publication of the first English edition of this book in 1992, it became essential for electrodermal researchers worldwide again to learn from our German colleagues.When I came into psychophysiology in the mid-1960s, electrodermal activity was the most common system studied. Because of its popularity, a large literature had emerged on the physiological mechanisms producing these changes in the electrical properties of the skin and on the best methodology for recording them. Major reviews and/or chapters had been published or soon were to be published by Peter Venables and Irene Martin, Robert Edelberg, and David Lykken. Later reviews and articles were published by Venables and Margaret Christie, and by me. A chapter in 1990 by Michael Dawson, Anne Schell, and Diane Filion was especially noteworthy for its coverage of the psychological applications of electrodermal measures.Note that all these publications were journal articles and chapters and that most of them focused almost entirely on mechanisms and methodology. The publication of this book, first in German and then in English, provided the first book on electrodermal activity, and one that extensively covers psychological applications as well as mechanisms and methodology. Again to quote David Lykken back in 1992, "The return of German scholarship to what I shall loftily call the high table of psychophysiology is exemplified by this fine book, the most comprehensive treatise on the electrodermal system to appear in any language . . ." I completely agree with v that evaluation. Professor Boucsein's outstanding scholarship has produced a book of such breadth of coverage ...

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“…Furthermore these induced bursts have been shown to be temporally correlated with the theta response of the hippocampus (Petsche et al 1965;Stumpf, 1965a). Desynchronization of the hippocampal activity by high intensities of stimulation of the reticular formation (Gogolak, Petsche, Sterc & Stumpf, 1967;Stumpf, 1965b;Yokota & Fujimori, 1964) or by injections of LSD (Stumpf, Petsche & Gogolak, 1962) while the pattern of bursts within the septum continued has been taken as evidence that this pattern was the cause rather than the consequence of the theta activity. The development of the bursting discharge appears therefore to be due to a neuronal mechanism situated within the septal area itself and can function independently of hippocampal influence.…”

Section: Introductionmentioning

confidence: 99%

The hippocampal control of neuronal discharges in the septum of the rat

McLennan¹,

Miller²

1974

The Journal of Physiology

189

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SUMMARY1. Records of field potentials and of the firing patterns of single neurones evoked by stimulation of the fimbria and fornix have been obtained from the septal nuclei of the rat.2. Fimbrial stimulation caused orthodromic activation of lateral septal neurones which was followed by a lengthy inhibition. In the medial septum such stimulation could elicit an antidromic response; but inhibition whose duration depended upon whether the neurones were firing irregularly or in synchronized bursts was obtained without prior activation.3. Stimulation of the medial septum evoked an antidromic response in the lateral septal neurones, which was followed by inhibition.4. For all of these inhibitory phenomena, bursts of action potentials of small amplitude and correlated with the start of the inhibitory periods were observed, and are believed to indicate the firing of inhibitory interneurones.5. Stimulation of the fornix caused excitation of medial septal neurones but was without effect on those in the lateral septum.6. A scheme is proposed in which the direct inhibition of medial septal neurones from the fimbria is suggested to act as a 'reset' mechanism, while the phasic input from lateral septum resulting from the recurrent inhibitory pathways regulates the frequency of bursting in the medial septum.

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Effects of brain-stem stimulation upon hippocampal electrical activity, somatomotor reflexes and autonomic functions

Cited by 84 publications

References 10 publications

Sniffing frequency ofTupaia belangeri: A measure of central nervous activity (Arousal)

Sniffing frequency ofTupaia belangeri: A measure of central nervous activity (Arousal)

Electrodermal Activity

The hippocampal control of neuronal discharges in the septum of the rat

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