Anti @ EEG

Anti@EEG is a version of Antisaccade Tasks originally developed for Brain Mechanisms R01 (7T).

The source is vgs_ant.py (Psychopy) part of Memory Guided Saccade (MGS) Task, same interface can also run Visually Guided Saccade Task.

Used in 7T EEG, Habit EEG Protocol, SPA EEG.

Dollar Reward's psychopy implementation can also be run with parallel port (LPT) Status channel triggers enabled for EEG recording.

For local SSR measurements to visual angle, see Anti's visual angle section and SRR's visual angle calculator.

• 2026-08-06 (FC,VD,WF): EEG DollarReward dots presented at 8, 16, and 23 degrees from center.
• 2026-07-30 (WF, PV): EEG chin rest measurements

rad2deg <- \(x) x * 180/pi           # 180deg is pi radians
dot_pos <- c(7,108,214)              # relative to a 640px screen
from_center_px <- 640/2 - dot_pos    # pixel position from center
fc_cm <- from_center_px * 53/640     # pixel to screen distance on 53cm wide screen
dotdegs <- atan(fc_cm/60)|>rad2deg() # angle from center to points w/ 60cm eye-to-screen
 
#  23.374051 16.316696  8.327162

Using EOG, see eog_data

Hera/Projects/7TBrainMech/scripts/eeg/eog_cal

/Volumes/Hera/Projects/7TBrainMech/scripts/eeg/Makefile

eog_cal/eye_scored_mgs_eog_cleanvisit.csv: eog_cal/eye_scored_mgs_eog.csv
        cd eog_cal && Rscript clean_eog_visit.R
 
eog_cal/eye_scored_mgs_eog.csv: $(wildcard /Volumes/Hera/Raw/EEG/7TBrainMech/1*_2*/*_mgs*.bdf) $(wildcard /Volumes/Hera/Raw/EEG/7TBrainMech/1*_2*/*_MGS*.bdf)
        cd eog_cal && ml score_eog.m