Information limits within visual short-term memory

Abstract

This thesis examined separable information constraints upon visual short-term memory through application of signal detection theory and diffusion modelling (R. Ratcliff, 1978) applied to a series of related tasks. Following D. K. Sewell, S. D. Lilburn, and P. L. Smith (2014), I employed simple psychophysical paradigms using the near-threshold presentation of stimulus information and controlling the complexity of decision-making through a post-stimulus probe to obtain both accuracy and response time data. The first part of this thesis examines the relationship between two common visual short-term memory procedures—orientation discrimination and change detection—to characterise the effect of ..