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

Dinse, Hubert R.; Krüger, Katharina; Akhavan, Amir C.; Spengler, Friederike; Schöner, Gregor; Schreiner, Christoph E.

doi:10.1016/s0167-8760(97)00765-4

Cited by 62 publications

(40 citation statements)

References 20 publications

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“…Oscillations are commonly observed in the auto-correlations of spontaneous activity, and can be reset by single tone pips. Two studies have shown that best modulation frequencies are correlated with intrinsic oscillation rates (Kenmochi and Eggermont, 1997;Dinse et al, 1997). A presence of notched RRTFs in our data may be further evidence that oscillatory processes shape temporal information processing.…”

Section: Discussionsupporting

confidence: 74%

“…Some sites exhibit response profiles that manifested oscillatory processes. As others have suggested, this variability in RRTFs may represent an important coding strategy for temporal information (Dinse et al, 1997;Schreiner and Langer, 1986;Schreiner et al, 1997;Eggermont, 1991;Buonomano and Merzenich, 1995). These results are consistent with a distributed representation of repetition rate such that any frequency band of substantial width contains neurons that selectively prefer stimulus rates ranging from about 2 to 15 pps.…”

Section: Discussionsupporting

confidence: 63%

“…Oscillatory responses have been observed in auditory cortex in a number of studies in rats, cats, and monkeys (Schreiner and Urbas, 1986;Eggermont and Smith, 1995;Sally and Kelly, 1988;Dinse et al, 1997). These oscillations appear to influence cortical responses for up to several hundred milliseconds after an initial excitatory input.…”

Section: Discussionmentioning

confidence: 99%

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Distributed representation of spectral and temporal information in rat primary auditory cortex

Kilgard¹,

Merzenich²

1999

Hearing Research

142

112

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Modulations of amplitude and frequency are common features of natural sounds, and are prominent in behaviorally important communication sounds. The mammalian auditory cortex is known to contain representations of these important stimulus parameters. This study describes the distributed representations of tone frequency and modulation rate in the rat primary auditory cortex (A1). Detailed maps of auditory cortex responses to single tones and tone trains were constructed from recordings from 50-60 microelectrode penetrations introduced into each hemisphere. Recorded data demonstrated that the cortex uses a distributed coding strategy to represent both spectral and temporal information in the rat, as in other species. Just as spectral information is encoded in the firing patterns of neurons tuned to different frequencies, temporal information appears to be encoded using a set of filters covering a range of behaviorally important repetition rates. Although the average A1 repetition rate transfer function (RRTF) was low-pass with a sharp drop-off in evoked spikes per tone above 9 pulses per second (pps), individual RRTFs exhibited significant structure between 4 and 10 pps, including substantial facilitation or depression to tones presented at specific rates. No organized topography of these temporal filters could be determined.

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Section: Discussionsupporting

confidence: 74%

Section: Discussionsupporting

confidence: 63%

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Distributed representation of spectral and temporal information in rat primary auditory cortex

Kilgard¹,

Merzenich²

1999

Hearing Research

142

112

View full text Add to dashboard Cite

show abstract

“…Studies by Dinse et al (1991Dinse et al ( , 1997 and Dudkin et al (1978) confirmed the existence of the ''alpha response'' at the cellular level. Later, cross-modality experiments demonstrated that sensory alpha responses are dependent on the modality of sensory stimulation and recording site.…”

Section: Pre-stimulus Eeg Alpha Blocking (Erd) and Alpha Responsementioning

confidence: 86%

Event related desynchronization: use as a neurophysiologic marker is restricted

Başar

Gölbaşı

2014

Cogn Neurodyn

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The present research aims to show that the occurrence of alpha blocking or event-related desynchronization (ERD) strongly depends on the amplitude and also on the phase angle of alpha activity at the stimulus onset. Simple visual stimulation was presented to 17 healthy subjects during EEG recording. An O 2 electrode was used for analysis with a 32 channel EEG sampling system. We used a segmentation of raw data in order to obtain the evoked potential. Prestimulus and poststimulus activities were filtered in the alpha (8-13 Hz) frequency band. Later, four different events (blocked, time-locked, phase-locked, and eliminated) were separately averaged. Phase-locked sweeps were determined by application of inter-trial coherence analysis. The evaluation of the data shows that ''time-locked and phase-locked sweeps'' were the dominating pattern and not ''the blocked pattern'', which occurred only when the prestimulus alpha was high. In the analyses of EEG-EP sweeps, only 22 % of epochs showed (ERD). The ANOVA revealed significant differences between four different alpha responses (F(3,48) = 11.175; p \ 0.001). Furthermore, alpha oscillations in time-locked responses were significantly higher than blocked (p \ 0.0001). The analyses clearly demonstrate that important precaution is needed when using the ERD as a cognitive or pathological marker.

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“…Stimuli in different sensory modalities, including the somatosensory cortex, cause the emergence of oscillations, sometimes directly after the stimulus, but usually after a primary response, both in evoked potential studies and in intracellular and extracellular studies (Andersen and Andersson, 1968;Dinse et al, 1997). The origin of such oscillations can be extracortical (Contreras and Steriade, 1995) or intrinsic to the somatosensory cortex (Silva et al, 1991;Ahissar et al, 1997).…”

Section: Rebound Phase and Oscillationsmentioning

confidence: 99%

Imaging Spatiotemporal Dynamics of Surround Inhibition in the Barrels Somatosensory Cortex

et al. 2003

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Sensory processing and its perception require that local information would also be available globally. Indeed, in the mammalian neocortex, local excitation spreads over large distances via the long-range horizontal connections in layer 2/3 and may spread over an entire cortical area if excitatory polysynaptic pathways are also activated. Therefore, a balance between local excitation and surround inhibition is required. Here we explore the spatiotemporal aspects of cortical depolarization and hyperpolarization of rats anesthetized with urethane. New voltage-sensitive dyes (VSDs) were used for high-resolution real-time visualization of the cortical responses to whisker deflections and cutaneous stimulations of the whisker pad. These advances facilitated imaging of ongoing activity and evoked responses even without signal averaging. We found that the motion of a single whisker evoked a cortical response exhibiting either one or three phases. During a triphasic response, there was first a cortical depolarization in a small cortical region the size of a single cortical barrel. Subsequently, this depolarization increased and spread laterally in an oval manner, preferentially along rows of the barrel field. During the second phase, the amplitude of the evoked response declined rapidly, presumably because of recurrent inhibition. Subsequently, the third phase exhibiting a depolarization rebound was observed and clear, and ϳ16 Hz oscillations were detected. Stimulus conditions revealing a net surround hyperpolarization during the second phase were also found. By using new, improved VSD, the present findings shed new light on the spatial parameters of the intricate spatiotemporal cortical interplay of inhibition and excitation.

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

Cited by 62 publications

References 20 publications

Distributed representation of spectral and temporal information in rat primary auditory cortex

Distributed representation of spectral and temporal information in rat primary auditory cortex

Event related desynchronization: use as a neurophysiologic marker is restricted

Imaging Spatiotemporal Dynamics of Surround Inhibition in the Barrels Somatosensory Cortex

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