Dr Laycock's main research focus is on understanding the neural mechanisms underlying visual attention and object recognition, and also in how these may be impaired in some neurodevelopmental and psychiatric conditions (e.g., dyslexia, autism spectrum disorders, schizophrenia/schizotypy).
Investigations of parallel visual pathways in human by use of psychophysics techniques and by application of Transcranial Magnetic Stimulation (TMS) to briefly disrupt neural networks are being used to better understand how in healthy individuals such an automatic and rapid perception of the visual world is achieved. Electrophysiological, eye-tracking and functional brain imaging (fMRI) techniques are also important tools for understanding the spatial and temporal profile of visual and visual attentional networks involved.
In particular, Dr Laycock has focused on understanding the contribution of parallel visual pathways (magnocellular, parvocellular), and of their contribution to the dorsal and ventral streams. TMS, as a brain stimulation technique, is a particularly exciting tool when used in conjunction with other cognitive neuroscience methodologies, as it provides causal information about the involvement of cortical regions in a given cognitive task.
Dr Laycock has also looked more recently at how anxiety and acute stress can influence perception, as well as exploring the relationship between conscious and non-conscious visual processing (e.g, what role do direct sub-cortical pathways to the amygdala contribute to non-conscious processing in those on the autism spectrum?)
- BSc (University of Melbourne)
- Postgrad Dip AppPsych (La Trobe University)
- PhD (La Trobe University)
Vision science, cognitive neuroscience, neurospsychology, affective neuroscience.
Visual abnormalities in neurodevelopmental and psychiatric disorders including aspects of social/affective processing. I am particularly interested in visual/attentional (including eye-movement) abnormalities in people on the autism spectrum, or in schizotypy. I am interested in running projects exploring the extent of information processing that is possible without conscious awareness (e.g., using Continuous Flash Suppression) in general, as well as across the autism spectrum or how such processes contribute to fear mechanisms (e.g., Phobia). I also have an interest in exploring the relationship between stress/anxiety and perception.
- Peel, H.,Sherman, J.,Sperandio, I.,Laycock, R.,Chouinard, P. (2019). Perceptual size discrimination requires awareness and late visual areas: A continuous flash suppression and interocular transfer study In: Consciousness and Cognition, 67, 77 - 85
- Laycock, R.,Cutajar, E.,Crewther, S. (2019). Subclinical high schizotypy traits are associated with slower change detection In: Acta Psychologica, 195, 80 - 86
- Alexander, B.,Laycock, R.,Crewther, D.,Crewther, S. (2018). An fMRI-neuronavigated chronometric TMS investigation of V5 and intraparietal cortex in motion driven attention In: Frontiers in Human Neuroscience, 11, 1 - 9
- Cox, E.,Sperandio, I.,Laycock, R.,Chouinard, P. (2018). Conscious awareness is required for the perceptual discrimination of threatening animal stimuli: A visual masking and continuous flash suppression study In: Consciousness and Cognition, 65, 280 - 292
- Laycock, R. (2018). Perceptual discrimination of basic object features is not facilitated when priming stimuli are prevented from reaching awareness by means of visual masking In: Frontiers in Integrative Neuroscience, 12, 1 - 10
- Laycock, R.,Chan, D.,Crewther, S. (2017). Attention orienting in response to non-conscious hierarchical arrows: Individuals with higher autistic traits differ in their global/local bias In: Frontiers in Psychology, 8, 1 - 9
- Low, E.,Laycock, R.,Crewther, S. (2017). Neural markers associated with the temporal deployment of attention: A systematic review of non-motor psychophysical measures post-stroke In: Frontiers in Human Neuroscience, 11, 1 - 15
- Shilton, A.,Laycock, R.,Crewther, S. (2017). The Maastricht Acute Stress Test (MAST): Physiological and subjective responses in anticipation, and post-stress In: Frontiers in Psychology, 8, 1 - 10
- Wang, H.,Crewther, S.,Liang, M.,Laycock, R.,Yu, T.,Alexander, B.,Crewther, D.,Wang, J.,Yin, Z. (2017). Impaired activation of visual attention network for motion salience is accompanied by reduced functional connectivity between frontal eye fields and visual cortex in strabismic amblyopia In: Frontiers in Human Neuroscience, 11, 1 - 13
- Laycock, R.,Sherman, J.,Sperandio, I.,Chouinard, P. (2017). Size after effects are eliminated when adaptor stimuli are prevented from reaching awareness by continuous flash suppression In: Frontiers in Human Neuroscience, 11, 1 - 13