Low-frequency oscillations of visual, auditory and somatosensory cortical neurons evoked by sensory stimulation

Low-frequency oscillations — LFOs — below 20 Hz in the activity of cortical neurons are a commonly observed property across all sensory modalities. However, the functional significance and potential role of these intrinsic oscillations are not well understood. Here, we attempt to provide a general f...

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Bibliographic Details
Published in:International journal of psychophysiology 1997-06, Vol.26 (1), p.205-227
Main Authors: Dinse, H.R, Krüger, K, Akhavan, A.C, Spengler, F, Schöner, G, Schreiner, C.E
Format: Article
Language:English
Subjects:
Acoustic Stimulation
Animals
Auditory Cortex - cytology
Auditory Cortex - drug effects
Auditory Cortex - physiology
Electrophysiology
Humans
Low-frequency oscillations (LFOs)
Neurons - drug effects
Neurons - physiology
Photic Stimulation
Physical Stimulation
Sensory stimulation
Somatosensory Cortex - cytology
Somatosensory Cortex - drug effects
Somatosensory Cortex - physiology
Stimulus selectivity
Visual Cortex - cytology
Visual Cortex - drug effects
Visual Cortex - physiology
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Summary:Low-frequency oscillations — LFOs — below 20 Hz in the activity of cortical neurons are a commonly observed property across all sensory modalities. However, the functional significance and potential role of these intrinsic oscillations are not well understood. Here, we attempt to provide a general framework for the interpretation of this phenomenon by considering its properties across several sensory modalities. In the first part, we provide a survey and a general description of low-frequency oscillations (LFOs) at a cellular level observed following adequate [ Basar and Schürmann, 1994]. Sensory stimulation of neurons recorded in three sensory modalities of neocortices in higher mammals. The second part will address some functional aspects of low-frequency oscillations (LFOs) such as stimulus selectivity and so-called `interference' phenomena, specifically with findings related to `resetting' and `gating' of sensory processing streams. Finally, a hypotheses is outlined in which the low-frequency oscillations are regarded as an organizational principle by which continuity of sensory and motor states over time could be accomplished. © 1997 Elsevier Science B.V.
ISSN:0167-8760
1872-7697
DOI:10.1016/S0167-8760(97)00765-4