Time-frequency analysis of target detection reveals an early interface between bottom-up and top-down processes in the gamma-band.
- Authors
- Busch, Niko A; Schadow, Jeanette; FrΓΌnd, Ingo; Herrmann, Christoph S
- Year
- 2006
- Journal
- NeuroImage
- PMID
- 16246588
- DOI
- 10.1016/j.neuroimage.2005.09.009
The early visual gamma-band response is an oscillatory signal evoked approximately 100 ms after stimulation. While some studies have found effects of various cognitive processes on this signal, such effects could not be replicated in other studies. Accordingly, some authors have claimed that evoked gamma-band activity reflects merely sensory functions. To resolve these conflicting positions, we conducted a target detection experiment in which the feature that defined the target could be distributed over a large or a small part of the entire stimulus. Only targets covering a larger area of the entire stimulus evoked stronger gamma-band activity than standards although the over-all stimulus size was identical for all stimuli. This increase in evoked activity resulted from stronger oscillatory power and not exclusively from stronger phase-locking. In contrast, N1 and P3 amplitudes were larger for target stimuli irrespective of the distribution of the relevant stimulus feature. These results are consistent with the notion that early gamma-band activity is generated by feature-selective neural assemblies the activity of which can in fact be modulated by top-down processes. This interaction, however, may be only detectable in scalp-recorded EEG if it affects a sufficient number of neural assemblies.
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| Title | Year | PMID |
|---|---|---|
| Advances in Electrophysiological Research. | 2015 | 26259089 |
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| Title | Authors | Journal | Year | Link |
|---|---|---|---|---|
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| Aperiodic Neural Activity is a Better Predictor of Schizophrenia than Neural Oscillations. | Peterson EJ et al. | β | 2023 | β |
| Frequency and Time Domain Analysis of EEG Based Auditory Evoked Potentials to Detect Binaural Hearing in Noise. | Ignatious E et al. | β | 2023 | β |
| Impact of brain overgrowth on sensorial learning processing during the first year of life. | LΓ³pez-Arango G et al. | β | 2022 | β |
| Brain responses to human-voice processing predict child development and intelligence. | An KM et al. | β | 2020 | β |
| Oscillations in the central brain of <i>Drosophila</i> are phase locked to attended visual features. | Grabowska MJ et al. | β | 2020 | β |
| Studies on the Bottom-Up and Top-Down Neural Information Flow Alterations in Neurodegeneration. | Alipour A et al. | β | 2020 | β |
| Task-switching costs have distinct phase-locked and nonphase-locked EEG power effects. | McKewen M et al. | β | 2020 | β |
| Decreased resting gamma activity in adult attention deficit/hyperactivity disorder. | Tombor L et al. | β | 2019 | β |
| Attentional capture by physically salient stimuli in the gamma frequency is associated with schizophrenia symptoms. | Kornmayer L et al. | β | 2018 | β |
| Different Contexts in the Oddball Paradigm Induce Distinct Brain Networks in Generating the P300. | Li F et al. | β | 2018 | β |
| GABA metabolism and its role in gamma-band oscillatory activity during auditory processing: An MRS and EEG study. | Wyss C et al. | β | 2017 | β |
| Synchronization of fronto-parietal beta and theta networks as a signature of visual awareness in neglect. | Yordanova J et al. | β | 2017 | β |
| Advances in Electrophysiological Research. | Kamarajan C et al. | β | 2015 | β |
| Increased gamma oscillations evoked by physically salient distracters are associated with schizotypy. | Kornmayer L et al. | β | 2015 | β |
| Constitutive spectral EEG peaks in the gamma range: suppressed by sleep, reduced by mental activity and resistant to sensory stimulation. | Grummett TS et al. | β | 2014 | β |
| Neural correlates of apparent motion perception of impoverished facial stimuli: a comparison of ERP and ERSP activity. | Rossi A et al. | β | 2014 | β |
| Brain dynamics encode the spectrotemporal boundaries of auditory objects. | McMullan AR et al. | β | 2013 | β |
| Electrophysiological responses to emotional prosody perception in cochlear implant users. | Agrawal D et al. | β | 2013 | β |
| Illumination influences working memory: an EEG study. | Park JY et al. | β | 2013 | β |
| Musical expertise affects attention as reflected by auditory-evoked gamma-band activity in human EEG. | Ott CG et al. | β | 2013 | β |
| Spatial attention increases high-frequency gamma synchronisation in human medial visual cortex. | Koelewijn L et al. | β | 2013 | β |
| High-frequency oscillatory response to illusory contour in typically developing boys and boys with autism spectrum disorders. | Stroganova TA et al. | β | 2012 | β |
| Effects of color information on face processing using event-related potentials and gamma oscillations. | Minami T et al. | β | 2011 | β |
| Evoked alpha and early access to the knowledge system: the P1 inhibition timing hypothesis. | Klimesch W | β | 2011 | β |
| Gamma in motion: pattern reversal elicits stronger gamma-band responses than motion. | Naue N et al. | β | 2011 | β |
| The genetic and environmental influences of event-related gamma oscillations on bipolar disorder. | Hall MH et al. | β | 2011 | β |
| Altered evoked gamma-band responses reveal impaired early visual processing in ADHD children. | Lenz D et al. | β | 2010 | β |
| Electrophysiological correlates of figure-ground segregation directly reflect perceptual saliency. | Straube S et al. | β | 2010 | β |
| Oscillatory activity in prefrontal and posterior regions during implicit letter-location binding. | Campo P et al. | β | 2010 | β |
| Resonance phenomena in the human auditory cortex: individual resonance frequencies of the cerebral cortex determine electrophysiological responses. | Zaehle T et al. | β | 2010 | β |
| The electrophysiological correlate of saliency: evidence from a figure-detection task. | Straube S et al. | β | 2010 | β |
| Theta-gamma phase synchronization during memory matching in visual working memory. | Holz EM et al. | β | 2010 | β |
| Early gamma-band responses reflect anticipatory top-down modulation in the auditory cortex. | Schadow J et al. | β | 2009 | β |
| Induced gamma-band activity elicited by visual representation of unattended objects. | Martinovic J et al. | β | 2009 | β |
| Inter- and intra-individual covariations of hemodynamic and oscillatory gamma responses in the human cortex. | Zaehle T et al. | β | 2009 | β |
| Intermodal auditory, visual, and tactile attention modulates early stages of neural processing. | Karns CM et al. | β | 2009 | β |
| Occipital EEG correlates of conscious awareness when subjective target shine-through and effective visual masking are compared: bifocal early increase in gamma power and speed-up of P1. | Aru J et al. | β | 2009 | β |
| Spike-timing-dependent plasticity leads to gamma band responses in a neural network. | FrΓΌnd I et al. | β | 2009 | β |
| Anticipation of natural stimuli modulates EEG dynamics: physiology and simulation. | FrΓΌnd I et al. | β | 2008 | β |
| Binding binding: Departure points for a different version of the perceptual retouch theory. | Bachmann T | β | 2008 | β |
| Effects of twenty-minute 3G mobile phone irradiation on event related potential components and early gamma synchronization in auditory oddball paradigm. | Stefanics G et al. | β | 2008 | β |
| Enhanced EEG gamma-band activity reflects multisensory semantic matching in visual-to-auditory object priming. | Schneider TR et al. | β | 2008 | β |
| Gamma oscillations in gerbil auditory cortex during a target-discrimination task reflect matches with short-term memory. | Jeschke M et al. | β | 2008 | β |
| Human EEG very high frequency oscillations reflect the number of matches with a template in auditory short-term memory. | Lenz D et al. | β | 2008 | β |
| Modes of memory: early electrophysiological markers of repetition suppression and recognition enhancement predict behavioral performance. | Busch NA et al. | β | 2008 | β |
| Prestimulus EEG alpha activity reflects temporal expectancy. | Min BK et al. | β | 2008 | β |
| Sensory-evoked gamma oscillations in chronic schizophrenia. | Spencer KM et al. | β | 2008 | β |
| Time pressure modulates electrophysiological correlates of early visual processing. | FrΓΌnd I et al. | β | 2008 | β |
| Visual gamma oscillations in schizophrenia: implications for understanding neural circuitry abnormalities. | Spencer KM | β | 2008 | β |
| Early electrophysiological markers of visual awareness in the human brain. | Ohla K et al. | β | 2007 | β |
| EEG oscillations in the gamma and alpha range respond differently to spatial frequency. | FrΓΌnd I et al. | β | 2007 | β |
| Evoked gamma oscillations in human scalp EEG are test-retest reliable. | FrΓΌnd I et al. | β | 2007 | β |
| From perception to action: phase-locked gamma oscillations correlate with reaction times in a speeded response task. | FrΓΌnd I et al. | β | 2007 | β |
| Good times for multisensory integration: Effects of the precision of temporal synchrony as revealed by gamma-band oscillations. | Senkowski D et al. | β | 2007 | β |
| Stimulus intensity affects early sensory processing: visual contrast modulates evoked gamma-band activity in human EEG. | Schadow J et al. | β | 2007 | β |
| A cross-laboratory study of event-related gamma activity in a standard object recognition paradigm. | Busch NA et al. | β | 2006 | β |
| Voluntary control of Necker cube reversals modulates the EEG delta- and gamma-band response. | Mathes B et al. | β | 2006 | β |