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Auditory-Visual Shift Study

Description:

The purpose behind conducting the Auditory-Visual Shift study is to explore the effects of aging on the processing of sensory auditory and visual stimuli. The study is comprised of data collected from 38 healthy adult subjects covering both young adults and elderly adults. For each subject, the experiment begins with one Focus Auditory (FA) block and one Focus Visual (FV) block, followed by 12 Shift (SH) blocks and another 3 FA and FV blocks each, where the order of the FA and FV sequences was randomized across subjects. In the Shift condition, subjects must shift their attention between the visual modality and the auditory modality based on the presentation of 'Look' and 'Hear' cues. In the Focus condition, subjects are told prior to the start of the block which modality (auditory or visual) to attend to. The stimuli is presented in blocks of 264 for duration of 2.64 min. The auditory stimuli are 100-ms 550-Hz (target) and 500-Hz (non-target) sine-wave tones, amplitude-modulated at 5 Hz. The visual stimuli are light-blue (target) and a dark-blue (non-target) 8.4 cm2 filled squares presented on a computer monitor. Altogether, 384 unattended non-target stimuli per modality were presented during the Focus condition and 576 non-target stimuli were presented during the Shift condition.

Summary:

Number of Sessions: 49
Number of Subjects: 49
Type of Subject Groups: young, elderly
All subjects are considered healthy and normal: Yes
Number of Channels (min to max): 36 to 36
Recorded Modalities: EEG (SA Instruments, Home-Grown Digitizer, Electro-Cap International)
Total Size: 1.4 GB
License Type: CC0

Publications:

Ceponiene R., Westerfield M., Torki M., ; Townsend J., "Modality-specificity of sensory aging in vision and audition: Evidence from event-related potentials," Brain Research, 2008, vol. 1215, Pgs 53-68.
DOI: 10.1016/j.brainres.2008.02.010
Westerfield M., Schroeder S., Lee K., Adamo M., Ceponiene R., Townsend J.; Cross- modal shifting attention in healthy aging: an ERP study. Program No. 933.9. 2003 Abstract Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience
SfN_AVshift_P3.pdf

Experimenters:

Marissa Westerfield (Primary Experimenter)

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 av105

av105

young

M

1965

37

NA

 .01-100 During (focus hear,shift1,shift2), no responses recorded. Click to view calibration values. session/1/eeg_recording_1.rdf

session/1/channel_locations.sfp

 36

10-20
2 data collection av101

av101

young

F

1981

20

NA

 .01-100 Events 1-294 are invalid. Click here to view calibration values. session/2/eeg_recording_1.rdf

session/2/channel_locations.sfp

 36

10-20
3 data collection av109

av109

young

M

1971

30

NA

 .01-100 During hear condition, subject responded to all tones. Click here to view calibration values. session/3/eeg_recording_1.rdf

session/3/channel_locations.sfp

 36

10-20
4 data collection av201

av201

elderly

F

1943

59

NA

 .01-100 P7 was a bad electrode, and was replaced with drop in (channel 24); T7 and T8 were noisy channels. Click here to view calibration values. session/4/eeg_recording_1.rdf session/4/eeg_recording_2.rdf

session/4/channel_locations.sfp

 36

10-20
5 data collection av112

av112

young

M

1978

24

NA

 .01-100 CZ acting funny during focus look. Took break to fix problems. Drop ins: (P3,CZ,T8). Click here to view calibration values. session/5/eeg_recording_1.rdf

session/5/channel_locations.sfp

 36

10-20
6 data collection av108

av108

young

F

1981

20

NA

 .01-100 O1 would not settle. Click here to view calibration values. session/6/eeg_recording_1.rdf

session/6/channel_locations.sfp

 36

10-20
7 data collection av203

av203

elderly

F

1939

63

NA

 .01-100 Eye electrode fell off in the Shift condition and had to be replaced. Click here to view calibration values. session/7/eeg_recording_1.rdf session/7/eeg_recording_2.rdf

session/7/channel_locations.sfp

 36

10-20
8 data collection av116

av116

young

F

1980

22

NA

 .01-100 Dropins for (CZ,P3,T8,P4). A lot of trials lost due to P3 channel. Click here to view calibration values. session/8/eeg_recording_1.rdf

session/8/channel_locations.sfp

 36

10-20
9 data collection av204

av204

elderly

F

1938

64

NA

 .01-100 P3 very bad channel. Click here to view calibration values. session/9/eeg_recording_1.rdf session/9/eeg_recording_2.rdf

session/9/channel_locations.sfp

 36

10-20
10 data collection av113

av113

young

M

1975

27

NA

 .01-100 60-cycle; Right eye especially noisy. Redone, but still bad. Click here to view calibration values. session/10/eeg_recording_1.rdf

session/10/channel_locations.sfp

 36

10-20
11 data collection av115

av115

young

F

1980

22

NA

 .01-100 Restarted after first 28 trials, subject not concentrating. Click here to view calibration values. session/11/eeg_recording_1.rdf

session/11/channel_locations.sfp

 36

10-20
12 data collection av107

av107

young

F

1973

28

NA

 .01-100 Right eye noisy even after rescrubbing. T7 is also a bit noisy. Click here to view calibration values. session/12/eeg_recording_1.rdf

session/12/channel_locations.sfp

 36

10-20
13 data collection av306

av306

elderly

F

1929

73

NA

 .01-100 Left mastoid and right eye are noisy. Click here to view calibration values. session/13/eeg_recording_1.rdf

session/13/channel_locations.sfp

 36

10-20
14 data collection av302

av302

elderly

F

1936

65

NA

 .01-100 T7 noisy. Click here to view calibration values. session/14/eeg_recording_1.rdf

session/14/channel_locations.sfp

 36

10-20
15 data collection av305

av305

elderly

F

1930

72

NA

 .01-100 High impedance for both eyes, FP2. Click here to view calibration values. session/15/eeg_recording_1.rdf

session/15/channel_locations.sfp

 36

10-20
16 data collection av120

av120

young

F

1980

22

NA

 .01-100 T7,T8 are noisy. Click here to view calibration values. session/16/eeg_recording_1.rdf

session/16/channel_locations.sfp

 36

10-20
17 data collection av121

av121

young

M

1981

21

NA

 .01-100 Click here to view calibration values. session/17/eeg_recording_1.rdf

session/17/channel_locations.sfp

 36

10-20
18 data collection av122

av122

young

M

1979

23

NA

 .01-100 Right eye impedance at 9.0. Click here to view calibration values. session/18/eeg_recording_1.rdf

session/18/channel_locations.sfp

 36

10-20
19 data collection av207

av207

elderly

M

NA

NA

NA

 .01-100 Loose electrodes swapped in middle of session (34,35,36). Click here to view calibration values. session/19/eeg_recording_1.rdf

session/19/channel_locations.sfp

 36

10-20
20 data collection av124

av124

young

M

1979

22

NA

 .01-100 Right eye looks like open channel. Tried rescrubbing. Impedance less than 3. Click here to view calibration values. session/20/eeg_recording_1.rdf

session/20/channel_locations.sfp

 36

10-20
21 data collection av128

av128

young

F

1962

40

NA

 .01-100 PZ had 17.7 impedance. Click here to view calibration values. session/21/eeg_recording_1.rdf

session/21/channel_locations.sfp

 36

10-20
22 data collection av214

av214

elderly

F

1943

49

NA

 .01-100 Subject had difficulty distinguishing high and low tones and boxes; also had to quit and restart because she closed here eyes to hear the tones better; subject had too many blinks. Click here to view calibration values. session/22/eeg_recording_1.rdf

session/22/channel_locations.sfp

 36

10-20
23 data collection av219

av219

elderly

F

1946

56

NA

 .01-100 T8 noisy throughout; During shift condition, FC6 was a little noisy; Last hear and look conditions are in second file, because of an accidental stop of the recording. Click here to view calibration values. session/23/eeg_recording_1.rdf session/23/eeg_recording_2.rdf

session/23/channel_locations.sfp

 36

10-20
24 data collection av308

av308

elderly

M

1932

70

NA

 .01-100 Muscle artifact. Tenses up during start of scenarios. Restarted focus hear 03 after a couple stimuli;R eye noisy. Click here to view calibration values. session/24/eeg_recording_1.rdf

session/24/channel_locations.sfp

 36

10-20
25 data collection av310

av310

elderly

F

1933

69

NA

 .01-100 Click here to view calibration values. session/25/eeg_recording_1.rdf

session/25/channel_locations.sfp

 36

10-20
26 data collection av206

av206

elderly

F

1942

59

NA

 .01-100 Right eye electrode bad; During the Focus Look Condition (2) subject was coughing in the middle of the run. Click here to view calibration values. session/26/eeg_recording_1.rdf

session/26/channel_locations.sfp

 36

10-20
27 data collection av130

av130

young

M

1976

25

NA

 .01-100 First FocAd and FocVis block missing because the digitizer didn't start until Shift blocks; AF3 is bad; Huge 60 cycle at FP1,P3; Following channels had impedances in [5,10] range: T9, C4, P3, P4, PO4,O1, O2, OZ, PZ, P8, CZ, CP1. Click here to view calibration values. session/27/eeg_recording_1.rdf

session/27/channel_locations.sfp

 36

10-20
28 data collection av315

av315

elderly

F

1927

75

NA

 .01-100 Click here to view calibration values. session/28/eeg_recording_1.rdf

session/28/channel_locations.sfp

 36

10-20
29 data collection av313

av313

elderly

F

1933

69

NA

 .01-100 P3 bad. Click here to view calibration values. session/29/eeg_recording_1.rdf

session/29/channel_locations.sfp

 36

10-20
30 data collection av216

av216

elderly

M

1943

59

NA

 .01-100 Subject started coughing in middle of study, had to give him some water. Click here to view calibration values. session/30/eeg_recording_1.rdf

session/30/channel_locations.sfp

 36

10-20
31 data collection av312

av312

elderly

M

1935

67

NA

 .01-100 Right eye channel slightly noisy. Click here to view calibration values. session/31/eeg_recording_1.rdf

session/31/channel_locations.sfp

 36

10-20
32 data collection av220

av220

elderly

M

1952

50

NA

 .01-100 subject yawned during the shift condition. Click here to view calibration values. session/32/eeg_recording_1.rdf session/32/eeg_recording_2.rdf

session/32/channel_locations.sfp

 36

10-20
33 data collection av212

av212

elderly

F

1939

64

NA

 .01-100 Right eye channel impedance high. Click here to view calibration values. session/33/eeg_recording_1.rdf

session/33/channel_locations.sfp

 36

10-20
34 data collection av319

av319

elderly

F

NA

NA

NA

 .01-100 FC1 impedance at 10.2. Click here to view calibration values. session/34/eeg_recording_1.rdf

session/34/channel_locations.sfp

 36

10-20
35 data collection av304

av304

elderly

F

1925

77

NA

 .01-100 Subject wears glasses and in-ear hearing aids for both ears. Right eye electrode must be over blood vessel - picking up heartbeat. Click here to view calibration values. session/35/eeg_recording_1.rdf

session/35/channel_locations.sfp

 36

10-20
36 data collection av213

av213

elderly

F

1950

53

NA

 .01-100 Subject performance was very good; Right eye data looks a bit noisy. Click here to view calibration values. session/36/eeg_recording_1.rdf

session/36/channel_locations.sfp

 36

10-20
37 data collection av317

av317

elderly

M

1929

73

NA

 .01-100 For Focus look 04 condition lost sound at trial count 140; returned at trial count 240; mastoids recorded heartbeat. Click here to view calibration values. session/37/eeg_recording_1.rdf

session/37/channel_locations.sfp

 36

10-20
38 data collection av118

av118

young

F

1968

34

NA

 .01-100 Click here to view calibration values. session/38/eeg_recording_1.rdf

session/38/channel_locations.sfp

 36

10-20
39 data collection av316

av316

elderly

F

1936

66

NA

 .01-100 Stopped halfway through focus hear 02. restarted. Click here to view calibration values. session/39/eeg_recording_1.rdf

session/39/channel_locations.sfp

 36

10-20
40 data collection av321

av321

elderly

M

NA

NA

NA

 .01-100 Left eye impedance at 7.0. Click here to view calibration values. session/40/eeg_recording_1.rdf

session/40/channel_locations.sfp

 36

10-20
41 data collection av320

av320

elderly

F

1937

65

NA

 .01-100 4 drop ins. CP1 had 33 impedance. CP2-28, P4-12, O2-12. Click here to view calibration values. session/41/eeg_recording_1.rdf

session/41/channel_locations.sfp

 36

10-20
42 data collection av1042

av1042

young

F

1982

22

NA

 .01-100 1042a only has data up to Event 201 when digitizer crashed. Re-ran and scored as 1042b. Frontal noise due to muscle tension. Click here to view calibration values. session/42/eeg_recording_1.rdf session/42/eeg_recording_2.rdf

session/42/channel_locations.sfp

 36

10-20
43 data collection av3041

av3041

elderly

M

1926

78

NA

 .01-100 3041a only contains focus hear 01; 36 impedance at 7. Click here to view calibration values. session/43/eeg_recording_1.rdf session/43/eeg_recording_2.rdf

session/43/channel_locations.sfp

 36

10-20
44 data collection av3036

av3036

elderly

M

1930

74

NA

 .01-100 Subject chews tongue; 44 impedance at 9. 36 impedance at 7. Click here to view calibration values. session/44/eeg_recording_1.rdf

session/44/channel_locations.sfp

 36

10-20
45 data collection av3039

av3039

elderly

F

1932

71

NA

 .01-100 14 impedance at 6.7. 36 impedance at 8.0. Click here to view calibration values. session/45/eeg_recording_1.rdf

session/45/channel_locations.sfp

 36

10-20
46 data collection av3040

av3040

elderly

M

1933

71

NA

 .01-100 35 impedance at 6.5. Click here to view calibration values. session/46/eeg_recording_1.rdf

session/46/channel_locations.sfp

 36

10-20
47 data collection av3027

av3027

elderly

M

1932

71

NA

 .01-100 Click here to view calibration values. session/47/eeg_recording_1.rdf

session/47/channel_locations.sfp

 36

10-20
48 data collection av1040

av1040

young

F

1981

23

NA

 .01-100 Right eye impedance at 9.5 Frontal noise due to muscle tension. P3 noisy 1/2 way through. Click here to view calibration values. session/48/eeg_recording_1.rdf

session/48/channel_locations.sfp

 36

10-20
49 data collection av1039

av1039

young

F

NA

NA

NA

 .01-100 Click here to view calibration values. session/49/eeg_recording_1.rdf

session/49/channel_locations.sfp

 36

10-20

Study Paradigm and Context

Description Tag
During the experiment, subjects are seated so that they are 1.5 m away from a computer monitor on which visual stimuli is presented. Context/Sitting, Context/Screen Distance/1.5 m

Table of Event Codes:

Event Code Condition
Label Description Tag
1 'HEAR' Cue A 200-ms word 'Hear' that instructs subjects to attend to the auditory modality is presented. Cue is ignored in the Shift Condition Block. Cue is attended to in the Focus Condition Blocks (FA,FV). Stimulus/Visual/Language/Word, Stimulus/Instruction/Attend
2 'LOOK' Cue A 200-ms word 'Look' that instructs subjects to attend to the visual modality is presented. Cue is ignored in the Shift Condition Block. Cue is attended to in the Focus Condition Blocks (FA, FV). Stimulus/Visual/Language/Word, Stimulus/Instruction/Attend
3 Auditory Target A 100-ms 550-Hz sine wave tone, amplitude modulated at 5-Hz, is played. Attended to during the FA blocks and unattended to during the FV blocks. Stimulus/Auditory/Tone/550Hz, Stimulus/Auditory/Loudness/63dB, Stimulus/Target
4 Visual Target A light blue 8.4 cm2 filled square visual stimulus is presented. Attended to during the FV blocks and unattended to during the FV blocks. Stimulus/Visual/Uniform Color/light-blue, Stimulus/Visual/Shape/Rectangle/Square, Stimulus/Size/3.3 deg, Stimulus/Target
5 Auditory Non-Target A 500-Hz sine-wave tone, amplitude-modulated at 5 Hz, is played. Attended to during the FA blocks and unattended to during the FA blocks. Stimulus/Auditory/Tone/500Hz, Stimulus/Auditory/Loudness/63dB
6 Visual Non-Target A dark-blue 8.4 cm2 filled square visual stimulus is presented. Attended to during the FV blocks and unattended to during the FA blocks. Stimulus/Visual/Uniform Color/dark-blue, Stimulus/Visual/Shape/Rectangle/Square, Stimulus/Size/3.3 deg
7 Auditory Target During the Shift Condition Block, subject attends to the 100-ms 550-Hz sine wave tone played. Stimulus/Auditory/Tone/550Hz, Stimulus/Auditory/Loudness/63dB, Stimulus/Target, State/Awake/Attention/Auditory
8 Visual Target During the Shift Condition Block, subject attends to the light blue 8.4 cm2 filled square. Stimulus/Visual/Uniform Color/light-blue, Stimulus/Visual/Shape/Rectangle/Square, Stimulus/Size/3.3 deg, Stimulus/Target, State/Awake/Attention/Visual
9 Auditory Target During the Shift Condition Block, subject ignores to the 100-ms 550-Hz sine wave tone played. Stimulus/Auditory/Tone/550Hz, Stimulus/Auditory/Loudness/63dB, Stimulus/Target, State/Awake/Passive
10 Visual Target During the Shift Condition Block, subject ignores to the light blue 8.4 cm2 filled square. Stimulus/Visual/Uniform Color/light-blue, Stimulus/Visual/Shape/Rectangle/Square, Stimulus/Size/3.3 deg, Stimulus/Target, State/Awake/Passive
11 Auditory Non-Target During the Shift Condition Block, subject attends to the 100-ms 500-Hz sine wave tone played. Stimulus/Auditory/Tone/500Hz, Stimulus/Auditory/Loudness/63dB, State/Awake/Attention/Auditory
12 Visual Non-Target During the Shift Condition Block, subject attends to the dark blue 8.4 cm2 filled square. Stimulus/Visual/Uniform Color/dark-blue, Stimulus/Visual/Shape/Rectangle/Square, Stimulus/Size/3.3 deg, State/Awake/Attention/Visual
13 Auditory Non-Target During the Shift Condition Block, subject ignores to the 100-ms 500-Hz sine wave tone played. Stimulus/Auditory/Tone/500Hz, Stimulus/Auditory/Loudness/63dB, State/Awake/Passive
14 Visual Non-Target During the Shift Condition Block, subject ignores to the dark blue 8.4 cm2 filled square. Stimulus/Visual/Uniform Color/dark-blue, Stimulus/Visual/Shape/Rectangle/Square, Stimulus/Size/3.3 deg; State/Awake/Passive
199 Calibration Pulse Used to measure the amplitudes of EEG potentials and needs to be calibrated with the data post-experiment.
201 Button Press The subject presses a button in response to detecting the target in the specific modality he or she is attending to. Response/Button press
202 Pause Recording Data recording was stopped for a while, and shows where data may not be continuous.

Contact:

For data results or more information regarding this study contact: Marissa Westerfield
phone: m[use LASTNAME from above]@ucsd.edu
phone: NA

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).