Event Details

Wednesday, 01 August 2018 - Wednesday, 01 August 2018
11:00 am - 12:00 pm
QBI Level 7 Auditorium
UQ Location:
Queensland Brain Institute (St Lucia)
Event category(s):

Event Contact

Ms Deirdre Wilson
Org. Unit:
Queensland Brain Institute

Event Description

Full Description:
Jessica McFadyen
Queensland Brain Institute
University of Queensland
Title: “Shortcuts for fear, conscious perception, and surprise in hierarchical visual systems”
Abstract: As highly visual creatures, it is crucial to our survival that we can rapidly predict, detect, and respond to potential threats in our visual environment. Both the visual system and the amygdala are arguably the most thoroughly studied components of the brain and yet there is considerable controversy over how these two systems interact to produce rapid fear responses. I will discuss work from my PhD that aimed to resolve this controversy by investigating the structural (i.e. diffusion MRI) and effective (i.e. dynamic causal modelling of both MEG and fMRI data) neural connectivity underlying rapid responses to fearful faces, with a particular focus on a pathway from the superior colliculus to the amygdala via the pulvinar that bypasses the visual cortex. I will also present recent EEG work (incorporating machine learning) that aimed to extend our understanding of how neural shortcuts for fear might influence the overall, hierarchical structure of the human brain, particularly regarding its ability to predict and to produce our conscious visual experience of emotional facial expressions.

Directions to UQ

Google Map:
To St Lucia Campus, UQ Ipswich, and UQ Gatton.

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