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Oddball

Description:

Subjects are presented with tones of short or long durations (200 and 400 ms tones with equal probability of being presented). In 10% of the trials these tones were 660Hz and in 90% of the trials these tones were 600Hz. Subjects were to focus only on the duration of the tone, ignoring any pitch changes, and respond by pressing a button to whether the tone was long or short. About 1000ms after the stimulus onset, feedback was presented visually to subjects telling them if their response was "correct" or "wrong."

Summary:

Number of Sessions: 12
Number of Subjects: 12
Type of Subject Groups: normal
All subjects are considered healthy and normal: Yes
Number of Channels (min to max): 254 to 254
Recorded Modalities: EEG (BIOSEMI EEG System)
Total Size: 7.5 GB
License Type: CC0

Experimenters:

Stefan Berti (Data Analysis and Acquisition)
Julie Onton (Data Acquisition and Presentation Programming)
Jenny Stowe (Data Acquisition)
Scott Makeig (Principal Investigator)

Table of Session Information:

Session Purpose Lab Id Subject EEG Sampling Rate (Hz) Notes EEG Recordings Channel Locations Number of Channels Channel Location Type
Lab Id Group Gender YOB Age Hand
1 data collection NA

NA

normal

F

1984

20

R

 256 H7 and B25 unstable but stabilized during testing; A7 and A13 noisy; F12 noisy around last 5 blocks; went in after block 10 to fix earphones. session/1/eeg_recording_1.bdf

session/1/channel_locations.elp

 254

custom
2 data collection NA

NA

normal

F

1979

25

R

 256 Went in after 1st block to remind subject to focus on screen during feedback and not to just listen for the auditory signal; F24 had electrode noise; BioSemi seemed to pause recording during baseline, seems to automatically start recording with signal from stimulus computer session/2/eeg_recording_1.bdf

session/2/channel_locations.elp

 254

custom
3 data collection NA

NA

normal

M

1982

22

R

 256 Clean EEG; BioSemi pauses saving during baseline, caught at block #6 and overrode "not saving" each block from then on; recording interruption at end of block 7, so new file was started, then new file started again at beginning of block 11. session/3/eeg_recording_1.bdf session/3/eeg_recording_2.bdf session/3/eeg_recording_3.bdf

session/3/channel_locations.elp

 254

custom
4 data collection NA

NA

normal

F

1979

25

R

 256 Clean EEG to start, went in after block 5 to adjust ear piece; subject was closing eyes; subject felt a bit tired after block 5; duration of fixation cross was much shorter; G12 was unstable around block trial #11 (on and off) session/4/eeg_recording_1.bdf

session/4/channel_locations.elp

 254

custom
5 data collection NA

NA

normal

M

1980

24

R

 256 C1 unstable electrode; went in after block 10 to adjust and reminded subject to keep his eyes opened; subject had droopy eyes during 9th, 10th, and 17th block session/5/eeg_recording_1.bdf

session/5/channel_locations.elp

 254

custom
6 data collection NA

NA

normal

M

1968

36

R

 256 H9 was unstable but seemed to be ok by block #4; B19 off and on; G21 at block 9 seemed unstable; subject's eyes closing during end of block 8 and 9, appeared tired during the last 5 blocks; gave subject water after block 9 and let subject adjust position after block 15. session/6/eeg_recording_1.bdf

session/6/channel_locations.elp

 254

custom
7 data collection NA

NA

normal

F

1981

23

R

 256 G7,H15,A4,A9,A11,H3,A3,A10 unstable and noisy, A3 slightly noisy, B25 was unstable around block 5, A10, A11,H3 channels were bad until block #10, loss of information at end of block 14 so new file was started. session/7/eeg_recording_1.bdf session/7/eeg_recording_2.bdf

session/7/channel_locations.elp

 254

custom
8 data collection NA

NA

normal

M

1980

24

R

 256 Good clean EEG; no problems with eyes closing, subject was alert through whole experiment; replaced earphone after block 3. session/8/eeg_recording_1.bdf

session/8/channel_locations.elp

 254

custom
9 data collection NA

NA

normal

F

1978

26

NA

 256 NA session/9/eeg_recording_1.bdf

session/9/channel_locations.elp

 254

custom
10 data collection NA

NA

normal

F

1984

20

R

 256 D16,B13,G16,G17 unstable electrodes; no electrode 5 or 6, cap all the way down to eyes session/10/eeg_recording_1.bdf

session/10/channel_locations.elp

 254

custom
11 data collection NA

NA

normal

M

1978

26

L

 256 B3 unstable but okay after block 1; B30 unstable from beginning; recording paused near beginning around block 11 session/11/eeg_recording_1.bdf

session/11/channel_locations.elp

 254

custom
12 data collection NA

NA

normal

M

1982

22

R

 256 H channels noisy, especially H12-H22; B19 was wandering session/12/eeg_recording_1.bdf

session/12/channel_locations.elp

 254

custom

Table of Event Codes:

Event Code Condition
Label Description Tag
1 Response Short Subject presses button indicating they heard a 'short' tone. Response/Button Press
2 Response Long Subject presses button indicating they heard a 'long' tone. Response/Button Press
100 Short Deviant 660 Hz tone is presented for a duration of 200ms. Stimulus/Auditory/Tone/660Hz, Stimulus/Auditory/Tone/Duration/200ms, Stimulus/Oddball/.05
101 Long Deviant 660 Hz tone is presented for a duration of 400ms. Stimulus/Auditory/Tone/660Hz, Stimulus/Auditory/Tone/Duration/400ms, Stimulus/Oddball/.05
150 Short Deviant A short deviant 660 Hz tone is presented for 200 ms, when the preceding stimulus was a deviant too. Stimulus/Auditory/Tone/660Hz, Stimulus/Auditory/Tone/Duration/200ms, Stimulus/Oddball
151 Long Deviant A long deviant 660 Hz tone is presented for 400 ms, when the preceding stimulus was a deviant as well. Stimulus/Auditory/Tone/660Hz, Stimulus/Auditory/Tone/Duration/400ms, Stimulus/Oddball
200 Short Standard A 600 Hz tone is presented for a duration of 200 ms. Stimulus/Auditory/Tone/600Hz, Stimulus/Auditory/Tone/Duration/200ms, Stimulus/Expected/Standard
201 Long Standard A 600 Hz tone is presented for a duration of 400 ms. Stimulus/Auditory/Tone/600Hz, Stimulus/Auditory/Tone/Duration/400ms, Stimulus/Expected/Standard
250 Short Standard A short standard 600 Hz tone is presented for 200 ms when the preceding stimulus was a deviant. Stimulus/Auditory/Tone/600Hz, Stimulus/Auditory/Tone/Duration/200ms, Stimulus/Expected/Standard
251 Long Standard A long standard 600 Hz tone is presented for 400 ms when the preceding stimulus was a deviant. Stimulus/Auditory/Tone/600Hz, Stimulus/Auditory/Tone/Duration/400ms, Stimulus/Expected/Standard

Contact:

For data results or more information regarding this study contact: Stefan Berti
phone: [use LASTNAME from above]@uni-mainz.de

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License link

This data was recorded under the approval of the Institutional Review Board (IRB) of the University of California, San Diego (#031151).