Social Memory cuing

EEG Raw and processed data for a memory task presented in virtual reality,

The full task is on OSF: https://osf.io/s9xmu/files

Derivatives:

Behavioral data from the task in derivatives

Processed data is in the derivatives

Code

Event codes are listed in the code file

Trial function, preprocessing, data cleaning and analysis are also in the code file as .txt files which can be converted back to .m files.

The code uses information contained in matlab data files: layout_64WG.mat and neighbours.mat due to the structure of these, they have been uploaded as .mat files.

Task:

Wearing a head mounted display to display the task in virtual reality participants completed a visual working memory task
In the task they had to remember the status of and details about presented objects.

A person or a stick cued the items such that it could look left or right and items could appear on the left or right. Sometimes the cue was valid (i.e. pointed where objects appeared) and sometimes it was invalid (pointed away from where objects appeared)

The objects were always a bowl, a cup, a plate and a teapot. Each could have a different status that needed to be remembered
participants were probed on memory for item location and then item status

Event codes within the data set are as follows. Trial function is included in code folder.

For the avatar cue

s3021 Character shown - i.e. moment the avatar appears

s3022 Objects shown - i.e. moment that the memory targets appear

s3023 Maintenance interval - i.e. moment the memory objects leave the screen and the blank maintenance interval occurs

s3024 Probe object shown - i.e. moment that participant is presented with location probe

s3025 Resp 1 made - i.e. moment that the participants have responded to the location probe

s3026 Q2 shown - i.e. moment that participants are asked a question about the status of the objects

s3027 Resp 2 made - i.e. moment that the participants have responded to the status probe

For the stick cue

s3041 Stick shown - i.e. moment the stick appears

s3042 Objects shown - i.e. moment that the memory targets appear

s3043 Maintenance interval - i.e. moment the memory objects leave the screen and the blank maintenance interval occurs

s3044 Probe object shown - i.e. moment that participant is presented with location probe

s3045 Resp 1 made - i.e. moment that the participants have responded to the location probe

s3046 Q2 shown - i.e. moment that participants are asked a question about the status of the objects

s3047 Resp 2 made - i.e. moment that the participants have responded to the status probe

Trial info EEG processed data

1: Main condition (MainCon)

1 = Stick Congruent

2 = Stick Incongruent

3 = Avatar Congruent

4 = Avatar Incongruent

2: Cue condition left or right (MConCueLR)

1 = Stick Congruent Cue shifts left

2 = Stick Congruent Cue shifts right

3 = Stick Incongruent Cue shifts left

4 = Stick Incongruent Cue shifts right

5 = Avatar Congruent Cue shifts left

6 = Avatar Congruent Cue shifts right

7 = Avatar Incongruent Cue shifts left

8 = Avatar Incongruent Cue shifts right

3: Condition from experiment build (con)

1 = Congruent, cueshift L, items Left, same location

2 = Congruent, cueshift L, items Left, dif location

3 = Congruent, cueshift R, items Right, same location

4 = Congruent, cueshift R, items Right, dif location

5 = Incongruent, cueshift L, items Right, same location

6 = Incongruent, cueshift L, items Right, dif location

7 = Incongruent, cueshift R, items Left, same location

8 = Incongruent, cueshift R, items Left, dif location

4: Validity

1 = valid (congruent)

2= invalid (incongruent)

5: Location

1 = Same (i.e. probe at same location as when initially presented)

2 = Different (i.e. probe at different location as when initially presented)

6 Cue

1 = Stick cue

2 = Avatar cue

7 Left or Right cue (LorR) specific to the cue shift

1 = Left Stick

2 = Right Stick

3 = Left Avatar

4 = Right Avatar

8 Start: Sample time for start of the trial

9 Cue: Sample time for cue onset

10 Targets: Sample time for target onset

11 Maintenance: Sample time for start of maintenance interval

12 Location probe: Sample time for location probe being shown

13 Location response time: Sample time for response to location probe being made

14 Status question: Sample time for status question being asked

15 Status response time: Sample time for response to status question being made

16 Accuracy for the location question

17 Accuracy for the status question