Cross-adaptation of visual and auditory motion and psychophysical receptive fields for multisensory motion

Summary

This project will build on recent work in our lab using a genetic algorithm (GA) to determine spatiotemporal receptive fields for translating visual motion. Pilot work shows the the GA provides a fast and efficient means of computing templates of receptive fields using the 'classification images' approach. This provides a fast way to study visual receptive fields underlying motion perception. We will extend this to include auditory and audio-visual motion. This approach will be paired with cross-adaptation experiments designed to show common processing underlies visual and auditory motion perception.

Supervisor(s)

Professor David Alais

Research Location

School of Psychology

Program Type

PHD

Synopsis

The project requires a student with good computational and programming skills, and ideally a grasp of the classification images method. The approach is psychophysical: on human observers we will compute psychophysical receptive fields for auditory, visual and audio-visual motion. We will also use classical cross-adaptation methods to show that visual and auditory motion mutually adapt each other. Finally, we will use transcranial magnetic stimulation (TMS) to establish if we can disrupt processing of auditory motion and visual motion at a single stimulation location.

Additional Information

Some knowledge of signal processing and analysis in the frequency domain would be an advantage. International students are welcome. Funding may be available to an outstanding applicant from the supervisor's research funds. 

HDR Inherent Requirements

In addition to the academic requirements set out in the Science Postgraduate Handbook, you may be required to satisfy a number of inherent requirements to complete this degree. Example of inherent requirement may include:   

  • Confidential disclosure and registration of a disability that may hinder your performance in your degree;  Confidential disclosure of a pre-existing or current medical condition that may hinder your performance in your degree (e.g. heart disease, pace-maker, significant immune suppression, diabetes, vertigo, etc.);  Ability to perform independently and/or with minimal supervision;  
  • Ability to undertake certain physical tasks (e.g. heavy lifting);  
  • Ability to undertake observatory, sensory and communication tasks;  
  • Ability to spend time at remote sites (e.g. One Tree Island, Narrabri and Camden);  
  • Ability to work in confined spaces or at heights;  
  • Ability to operate heavy machinery (e.g. farming equipment);  
  • Hold or acquire an Australian driver’s licence;  
  • Hold a current scuba diving license;  
  • Hold a current Working with Children Check;  
  • Meet initial and ongoing immunisation requirements (e.g. Q-Fever, Vaccinia virus, Hepatitis, etc.)   

You must consult with your nominated supervisor regarding any identified inherent requirements before completing your application.

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Keywords

Multisensory perception, Classification images, Genetic algorithm, visual motion, Auditory motion, adaptation

Opportunity ID

The opportunity ID for this research opportunity is: 2684

Other opportunities with Professor David Alais