Decision Processes in Visual Working Memory

Grant number: DP180101686 | Funding period: 2018 - 2021

Completed

Abstract

This project aims to investigate a new theory of rapid human decision making and memory processes in contexts of a continuous choice set. Many real-world, action-oriented decisions, such as those made while driving, walking, or cycling, require the decision maker to choose from a continuous set of alternatives and decisions are often based on memories of past events. This project will use human experimentation and computational modelling methods to increase our understanding of the processes involved in an important class of memory-based decision tasks. The expected outcomes will provide an improved understanding of cognitive computation, which may aid in the future development of associated..

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Related publications (10)

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Salience by competitive and recurrent interactions: Bridging neural spiking and computation in visual attention.

Gregory E Cox, Thomas J Palmeri, Gordon D Logan, Philip L Smith, Jeffrey D Schall

2022-10-07

Decisions about where to move the eyes depend on neurons in frontal eye field (FEF). Movement neurons in FEF accumulate salience e..

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Diffusion Theory of the Antipodal "Shadow" Mode in Continuous-Outcome, Coherent-Motion Decisions

Philip L Smith, Elaine A Corbett, Simon D Lilburn

2022-07-04

Continuous-outcome decisions, in which responses are made on continuous scales, are increasingly used to study perception and memo..

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A circular diffusion model of continuous-outcome source memory retrieval: Contrasting continuous and threshold accounts

Jason Zhou, Adam F Osth, Simon D Lilburn, Philip L Smith

2021-01-26

A circular analogue of the diffusion model adapted for continuous response tasks is applied to a continuous-outcome source memory ..

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A single, simple, statistical mechanism explains resource distribution and temporal updating in visual short-term memory

Simon D Lilburn, Philip L Smith

2020-11-01

Investigations into the way that information is held and integrated within the visual system provides some basis for understanding..

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A diffusion model analysis of target detection in near-threshold visual search

Elaine A Corbett, Philip L Smith

2020-08-01

When searching for a target briefly presented among distractors how do people combine information across display locations to make..

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Modeling Continuous Outcome Color Decisions With the Circular Diffusion Model: Metric and Categorical Properties

Philip L Smith, Saam Saber, Elaine A Corbett, Simon D Lilburn

2020-07-01

The circular diffusion model is extended to provide a theory of the speed and accuracy of continuous outcome color decisions and u..

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Vision for the blind: visual psychophysics and blinded inference for decision models

Philip L Smith, Simon D Lilburn

2020-06-08

Evidence accumulation models like the diffusion model are increasingly used by researchers to identify the contributions of sensor..

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Cultural Problems Cannot Be Solved with Technical Solutions Alone

SD Lilburn, DR Little, AF Osth, PL Smith

2019-12-01

A crisis in psychology has provoked researchers to seek remedies for bad practices that might damage the integrity of the discipli..

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Linking the diffusion model and general recognition theory: Circular diffusion with bivariate-normally distributed drift rates

Philip L Smith

2019-08-01

The circular diffusion model is a model of continuous outcome decisions, which are modeled as evidence accumulation by a two-dimen..

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Speeded multielement decision-making as diffusion in a hypersphere: Theory and application to double-target detection

Philip L Smith, Elaine A Corbett

2019-02-01

We generalize the circular 2D diffusion model of Smith (Psychological Review, 123, 425-451: 2016) to provide a new model of speede..