Paradigm and Hypotheses

This document plots the results of a 5 session, 60 min version of Opposite Cueing performed by myself and another subject. Subjects performed a simple 1-up, 2-down calibration procedure prior to performing the main cueing task - adjusting the contrast of the target. Following calibration, in which subjects performed the discrimination task in the absence of cues, subjects completed 12 blocks of a simple exogenous cueing task in each session. Subjects are asked to keep their eyes at the center of the screen and monitor two possible target locations on either side of the screen for the occurrence of the target. Prior to the target appearing, a one of these target locations flashed white, indicating with 80% validity where the target would not occur. Subjects are informed that they should therefore shift their attention to the opposite location of the cue. Following the occurrence of the cue, the target appears. The target is a gabor patch oriented 30 degrees clockwise or counterclockwise from vertical, and is immediately followed by a visual noise mask at that location. At the end of each trial, subjects report which direction the target was turned using the n (CW) and m (CCW) keys.

Subject (N = 5) overall performance on cueing task, before exclusion

d’

Calibrated target contrast for each subject, before exclusion

orientation

Cueing task performance (N = 2) after exclusion

Target d’

d’ for clockwise/counter-clockwise target judgement based upon cue-target congruence (Same vs. Different). Error bars are within-subject SEM.

Cueing effect size

Response Time

RT based upon cue-target congruence (Same vs. Different). Error bars are within-subjects.

RT Cueing effect size

Control Analyses

None right now

Statistics

No stats needed.