Hippocampal EEG and motor activity in the cat: The role of eye movements and body acceleration

Arnolds, D.E.A.T; Silva, F.H. Lopes da; Boeijinga, Peter H.; Kamp, Annelies; Aitink, W.

doi:10.1016/0166-4328(84)90035-4

Cited by 29 publications

(7 citation statements)

References 30 publications

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“…These studies indicated that theta band (6-9 Hz) rhythm was correlated to behaviors including locomotion and whole body movements ( Vanderwolf, 1969;Oddie and Bland, 1998;Miller, 1991). A sensory contribution to HF theta waves has also been reported in a previous study in which cats were restrained, and passively translated along a linear path in an illuminated room (Arnolds et al, 1984). Unit recording studies also indicated that running velocity of the animal affected activity of HF pyramidal and interneurons Hirase et al, 1999).…”

Section: Introductionmentioning

confidence: 79%

Rat hippocampal theta rhythm during sensory mismatch

et al. 2008

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It has been suggested that sensory mismatch induces motion sickness, but its neural mechanisms remain unclear. To investigate this issue, theta waves in the hippocampal formation (HF) were studied during sensory mismatch by backward translocation in awake rats. A monopolar electrode was implanted into the dentate gyrus in the HF, from which local field potentials were recorded. The rats were placed on a treadmill affixed to a motion stage translocated along a figure 8-shaped track. The rats were trained to run forward on the treadmill at the same speed as that of forward translocation of the motion stage (a forward condition) before the experimental (recording) sessions. In the experimental sessions, the rats were initially tested in the forward condition, and then tested in a backward (mismatch) condition, in which the motion stage was turned around by 180 degrees before translocation. That is, the rats were moved backward by translocation of the stage although the rats ran forward on the treadmill. The theta (6-9 Hz) power was significantly increased in the backward condition compared with the forward condition. However, the theta power gradually decreased by repeated testing in the backward condition. Furthermore, backward translocation of the stage without locomotion did not increase theta power. These results suggest that the HF might function as a comparator to detect sensory mismatch, and that alteration in HF theta activity might induce motion sickness.

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Section: Introductionmentioning

confidence: 79%

Rat hippocampal theta rhythm during sensory mismatch

et al. 2008

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“…Similar patterns of amplitude and frequency changes have been previously reported by Elazar and Adey (1967) in cats, during what the authors described as a tense state before movement toward food reward. Arnolds et al (1984) observed that in the cat, amplitude reached a maximum before frequency during locomotion, and when slowing down amplitude decreased and frequency was relatively unaffected.…”

Section: Figurementioning

confidence: 95%

Amplitude, frequency, and phase analysis of hippocampal theta during sensorimotor processing in a jump avoidance task

et al. 2006

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In the current study, rats implanted with hippocampal recording electrodes were trained to avoid shock in a jump avoidance task, using three separate heights, 28, 33, and 38 cm. The objectives were to measure the progression of Type 2 (immobility-related) hippocampal theta amplitude and frequency recorded during jump avoidances at each of the levels, and determine if there was a consistent relationship between the phase of the Type 1 (movement related) theta jump wave and the moment of movement initiation at each of the jump heights. The results demonstrated that the immobility period prior to the execution of the jump could be divided into two components: a sensory processing period and a movement preparation period. Comparing these two periods, average amplitudes were higher while frequency remained relatively constant during the sensory processing period. During the movement preparation period there was a negative correlation between amplitude and frequency: amplitude declined rapidly and frequency increased rapidly. During the execution of the jump, theta amplitude (Type 1) and frequency were positively correlated, both reaching peak values. The separate analyses of the individual jump heights provided further support for the precise relationships between theta parameters and the magnitude of the required movements. A significant phase preference was demonstrated for the highest jump height, with movement initiation occurring around the trough of theta recorded from the stratum moleculare of the dentate region. The findings supported the conclusion that the generation of hippocampal theta band oscillation and synchrony was related to sensorimotor processing and integration.

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“…More precisely, the theta rhythm induced by rotation is sensitive to atropine (Type 2 Theta) (Shin, 2010) and most probably linked to the cholinergic neurons of the medial septum (Tai et al, 2012). In cats and dogs, passive translation does not increase the power but increases the peak frequency of theta (Arnolds et al, 1984). Moreover, vestibular lesions decrease the power and the frequency of theta (Russell et al, 2006; Neo et al, 2012; Tai et al, 2012).…”

Section: The Pathway From the Nucleus Reticularis Pontis Oralis To Tmentioning

confidence: 99%

Vestibular pathways involved in cognition

Hitier

Besnard

Smith

2014

Front. Integr. Neurosci.

288

215

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Recent discoveries have emphasized the role of the vestibular system in cognitive processes such as memory, spatial navigation and bodily self-consciousness. A precise understanding of the vestibular pathways involved is essential to understand the consequences of vestibular diseases for cognition, as well as develop therapeutic strategies to facilitate recovery. The knowledge of the “vestibular cortical projection areas”, defined as the cortical areas activated by vestibular stimulation, has dramatically increased over the last several years from both anatomical and functional points of view. Four major pathways have been hypothesized to transmit vestibular information to the vestibular cortex: (1) the vestibulo-thalamo-cortical pathway, which probably transmits spatial information about the environment via the parietal, entorhinal and perirhinal cortices to the hippocampus and is associated with spatial representation and self-versus object motion distinctions; (2) the pathway from the dorsal tegmental nucleus via the lateral mammillary nucleus, the anterodorsal nucleus of the thalamus to the entorhinal cortex, which transmits information for estimations of head direction; (3) the pathway via the nucleus reticularis pontis oralis, the supramammillary nucleus and the medial septum to the hippocampus, which transmits information supporting hippocampal theta rhythm and memory; and (4) a possible pathway via the cerebellum, and the ventral lateral nucleus of the thalamus (perhaps to the parietal cortex), which transmits information for spatial learning. Finally a new pathway is hypothesized via the basal ganglia, potentially involved in spatial learning and spatial memory. From these pathways, progressively emerges the anatomical network of vestibular cognition.

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Hippocampal EEG and motor activity in the cat: The role of eye movements and body acceleration

Cited by 29 publications

References 30 publications

Rat hippocampal theta rhythm during sensory mismatch

Rat hippocampal theta rhythm during sensory mismatch

Amplitude, frequency, and phase analysis of hippocampal theta during sensorimotor processing in a jump avoidance task

Vestibular pathways involved in cognition

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