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RSVP Study

Description:

The purpose of this study was to explore the neural basis of target detection in human brain and to compare the performance of brain-computer interface (BCI) methods in classification of target vs. non-target images. The data was acquired during a rapid serial visual presentation task which was composed of a sequential presentation of image clips in rapid succession (12/s) in 4.1-s bursts, to which subjects were to indicate whether or not the satellite image clips of London presented included a small target airplane image by making one of two button presses. To indicate that they did see the target airplane feature, subjects pressed the right button and to indicate that they did not see the target airplane feature, subjects pressed the left button. During the training sessions, feedback ('correct' or 'incorrect') was given based on the subject's response, but this feedback was omitted during the testing sessions.

Summary:

Number of Sessions: 15
Number of Subjects: 8
Type of Subject Groups: normal
All subjects are considered healthy and normal: Yes
Number of Channels (min to max): 256 to 256
Recorded Modalities: EEG (BIOSEMI ActiveTwo)
Total Size: 14.3 GB
License Type: CC0

Publications:

Bigdely-Shamlo N., Vankov A., Ramirez R., ; Makeig S., "Brain Activity-Based Image Classification From Rapid Serial visual Presentation," IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2008, vol. 16, no 4.
DOI: 10.1109/TNSRE.2008.2003381

Experimenters:

Nima Bigdely-Shamlo (Data Analysis)
Andrey Vankov (Software Infrastructure)
Rey R. Ramirez (Data Analysis)
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 training exp44

normal

F

1978

29

right

 256 NA session/1/eeg_recording_1.bdf

session/1/channel_locations.elp

 256

10-20
2 training exp45

19

normal

F

1984

23

NA

 256 NA session/2/eeg_recording_1.bdf

session/2/channel_locations.elp

 256

10-20
3 testing exp47

20

normal

F

NA

NA

NA

 256 NA session/3/eeg_recording_1.bdf

session/3/channel_locations.elp

 256

10-20
4 testing exp48

10

normal

F

1978

29

right

 256 NA session/4/eeg_recording_1.bdf

session/4/channel_locations.elp

 256

10-20
5 testing exp49

19

normal

F

1984

23

NA

 256 NA session/5/eeg_recording_1.bdf

session/5/channel_locations.elp

 256

10-20
6 training exp50

20

normal

F

NA

NA

NA

 256 NA session/6/eeg_recording_1.bdf

session/6/channel_locations.elp

 256

10-20
7 training exp52

22

normal

F

NA

NA

NA

 256 NA session/7/eeg_recording_1.bdf

session/7/channel_locations.elp

 256

10-20
8 training exp53

23

normal

M

NA

NA

NA

 256 NA session/8/eeg_recording_1.bdf

session/8/channel_locations.elp

 256

10-20
9 testing exp54

22

normal

F

NA

NA

NA

 256 NA session/9/eeg_recording_1.bdf

session/9/channel_locations.elp

 256

10-20
10 training exp55

24

normal

F

1988

19

NA

 256 NA session/10/eeg_recording_1.bdf

session/10/channel_locations.elp

 256

10-20
11 training exp56

25

normal

F

1981

26

NA

 256 NA session/11/eeg_recording_1.bdf

session/11/channel_locations.elp

 256

10-20
12 testing exp57

23

normal

M

NA

NA

NA

 256 NA session/12/eeg_recording_1.bdf

session/12/channel_locations.elp

 256

10-20
13 training exp58

21

normal

F

NA

NA

NA

 256 NA session/13/eeg_recording_1.bdf

session/13/channel_locations.elp

 256

10-20
14 testing exp59

25

normal

F

1981

26

NA

 256 NA session/14/eeg_recording_1.bdf

session/14/channel_locations.elp

 256

10-20
15 testing exp60

21

normal

F

NA

NA

NA

 256 NA session/15/eeg_recording_1.bdf

session/15/channel_locations.elp

 256

10-20

Study Paradigm and Context

Description Tag
During this experiment, subjects sit in a standard office chair, viewing a CRT computer screen in a dimly-lit room. Context/Sitting, Context/Dim Room

Table of Event Codes:

Event Code Condition
Label Description Tag
1 non-target satellite image of London without the white airplane target Stimulus/Visual, Stimulus/Onset, Stimulus/Expected/Non-Target
2 target frames satellite image of London with the white airplane target Stimulus/Visual, Stimulus/Onset, Stimulus/Target
4 no targets response no targets response indicated by pressing left button using dominant hand Response/Button Press
5 one target response one target response indicated by pressing right button using dominant hand Response/Button Press
6 block start trials are organized into blocks, this marks the beginning of a new block of trials
16 start of trial fixation cross appears to indicated the start of a new trial followed by a burst of image clips Stimulus/Visual, Stimulus/Visual/Fixation Point, Stimulus/Visual/Shape/Cross, Stimulus/Onset, Stimulus/Instruction/Fixate
32 'correct' feedback" description visual feedback 'correct' indicating that the response was correct Stimulus/Visual, Stimulus/Visual/Language/Word, Stimulus/Feedback/Correct
64 'wrong' feedback visual feedback 'wrong' indicating that the response was incorrect Stimulus/Visual, Stimulus/Visual/Language/Word, Stimulus/Feedback/Incorrect
129 burst start the first image of a series of images that are presented in rapid succession Stimulus/Visual, Stimulus/Expected/Non-target

Contact:

For data results or more information regarding this study contact: Nima Bigdely-Shamlo
phone: [use FIRSTNAME from above]@sccn.ucsd.edu
phone: 858-822-7538

License Agreement:

The person who associated a work with this deed has dedicated the work to the public domain by waiving all of his or her rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. In no way are the patent or trademark rights of any person affected by CC0, nor are the rights that other persons may have in the work or in how the work is used, such as publicity or privacy rights. Unless expressly stated otherwise, the person who associated a work with this deed makes no warranties about the work, and disclaims liability for all uses of the work, to the fullest extent permitted by applicable law. When using or citing the work, you should not imply endorsement by the author or the affirmer.

License link

This data was recorded under the approval of the Institutional Review Board (IRB) of the University of California, San Diego (#071254).