Prestimulus amplitudes modulate P1 latencies and evoked traveling alpha waves
Traveling waves have been well documented in the ongoing, and more recently also in the evoked EEG. In the present study we investigate what kind of physiological process might be responsible for inducing an evoked traveling wave. We used a semantic judgment task which already proved useful to study...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2015-05-01
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| Series: | Frontiers in Human Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnhum.2015.00302/full |
| _version_ | 1811204827276902400 |
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| author | Nicole Alexandra Himmelstoss Christina Paula Brötzner Andrea eZauner Hubert Hannes Kerschbaum Walter eGruber Julia eLechinger Wolfgang eKlimesch |
| author_facet | Nicole Alexandra Himmelstoss Christina Paula Brötzner Andrea eZauner Hubert Hannes Kerschbaum Walter eGruber Julia eLechinger Wolfgang eKlimesch |
| author_sort | Nicole Alexandra Himmelstoss |
| collection | DOAJ |
| description | Traveling waves have been well documented in the ongoing, and more recently also in the evoked EEG. In the present study we investigate what kind of physiological process might be responsible for inducing an evoked traveling wave. We used a semantic judgment task which already proved useful to study evoked traveling alpha waves that coincide with the appearance of the P1 component. We found that the P1 latency of the leading electrode is significantly correlated with prestimulus amplitude size and that this event is associated with a transient change in alpha frequency. We assume that cortical background excitability, as reflected by an increase in prestimulus amplitude, is responsible for the observed change in alpha frequency and the initiation of an evoked traveling trajectory. |
| first_indexed | 2024-04-12T03:20:21Z |
| format | Article |
| id | doaj.art-0d3218f62dc2487bb5d204907258701a |
| institution | Directory Open Access Journal |
| issn | 1662-5161 |
| language | English |
| last_indexed | 2024-04-12T03:20:21Z |
| publishDate | 2015-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Human Neuroscience |
| spelling | doaj.art-0d3218f62dc2487bb5d204907258701a2022-12-22T03:49:54ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612015-05-01910.3389/fnhum.2015.00302119948Prestimulus amplitudes modulate P1 latencies and evoked traveling alpha wavesNicole Alexandra Himmelstoss0Christina Paula Brötzner1Andrea eZauner2Hubert Hannes Kerschbaum3Walter eGruber4Julia eLechinger5Wolfgang eKlimesch6University of SalzburgUniversity of SalzburgUniversity of SalzburgUniversity of SalzburgUniversity of SalzburgUniversity of SalzburgUniversity of SalzburgTraveling waves have been well documented in the ongoing, and more recently also in the evoked EEG. In the present study we investigate what kind of physiological process might be responsible for inducing an evoked traveling wave. We used a semantic judgment task which already proved useful to study evoked traveling alpha waves that coincide with the appearance of the P1 component. We found that the P1 latency of the leading electrode is significantly correlated with prestimulus amplitude size and that this event is associated with a transient change in alpha frequency. We assume that cortical background excitability, as reflected by an increase in prestimulus amplitude, is responsible for the observed change in alpha frequency and the initiation of an evoked traveling trajectory.http://journal.frontiersin.org/Journal/10.3389/fnhum.2015.00302/fulltraveling wavesalpha wavesP1 latencies and topographybackground excitationfrequency change |
| spellingShingle | Nicole Alexandra Himmelstoss Christina Paula Brötzner Andrea eZauner Hubert Hannes Kerschbaum Walter eGruber Julia eLechinger Wolfgang eKlimesch Prestimulus amplitudes modulate P1 latencies and evoked traveling alpha waves Frontiers in Human Neuroscience traveling waves alpha waves P1 latencies and topography background excitation frequency change |
| title | Prestimulus amplitudes modulate P1 latencies and evoked traveling alpha waves |
| title_full | Prestimulus amplitudes modulate P1 latencies and evoked traveling alpha waves |
| title_fullStr | Prestimulus amplitudes modulate P1 latencies and evoked traveling alpha waves |
| title_full_unstemmed | Prestimulus amplitudes modulate P1 latencies and evoked traveling alpha waves |
| title_short | Prestimulus amplitudes modulate P1 latencies and evoked traveling alpha waves |
| title_sort | prestimulus amplitudes modulate p1 latencies and evoked traveling alpha waves |
| topic | traveling waves alpha waves P1 latencies and topography background excitation frequency change |
| url | http://journal.frontiersin.org/Journal/10.3389/fnhum.2015.00302/full |
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