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 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.
Dinse
H R
HR
Inst. für Neuroinformatik, Theoretische Biologie, Ruhr-Universitt Bochum ND 04, Germany.
Krüger
K
K
Akhavan
A C
AC
Spengler
F
F
Schöner
G
G
Schreiner
C E
CE
D000161:Acoustic Stimulation; D000818:Animals; D001303:Auditory Cortex / Q000166:cytology / Q000187:drug effects / Q000502:physiology*; D004594:Electrophysiology; D006801:Humans; D009474:Neurons / Q000187:drug effects / Q000502:physiology*; D010775:Photic Stimulation; D010812:Physical Stimulation; D013003:Somatosensory Cortex / Q000166:cytology / Q000187:drug effects / Q000502:physiology*; D014793:Visual Cortex / Q000166:cytology / Q000187:drug effects / Q000502:physiology*