Real Object AB Pilot Analyses
Jonathan Keefe
03 February 2021
Paradigm and Hypotheses
This document plots the results of a 30 min version of Real Objects Attentional Blink, In this task, subjects performed an attentional blink paradigm in which they reported the identity of two colorful real world object targets amongs grayscale real world object distractors. T1 showed up as either the 4th or 6th image and T2 appeared at a lag of either 1, 2, or 8 images from T1. At the end of each trial, subjects reported which of four state x exemplar objects they saw for T1 and T2 using the a, s, d, and f keys. This experiment is meant to test whether subjects lose all information about T2 when this target is “blinked” or whether the loss of information is graded. If the loss is all-or-none, then we expect that subjects will be equally likely to report all 4 of the exemplar x state combinations. If they lose information about the target in a graded manner, then we expect that the subjects will be more likely to report the T2 object as being of the same exemplar but different state or same state but different exemplar than different exemplar and different state. This would suggest that they maintained some information about T2 even when they were incorrect.
Note: No error bars yet! Subjects who had an accuracy of less than 30% overall on T1 reports were excluded.
Subjects’ (N = 9) overall T1 performance, before exclusion
Subjects’ (N = 5) performance on task, after exclusion
Attentional Blink T1 accuracy
Attentional Blink T2 accuracy, overall and given correct T1
