Marek Pedziwiatr

Research group:
Neuroscience
Email:
PedziwiatrMA@cardiff.ac.uk
Telephone:
029 208 70365
Location:
CUBRIC, Maindy Road

Research summary

The main aim of my research is to provide a better understanding of how what we know and expect influences our basic perceptual processing, mainly in the visual domain. To investigate it experimentally, I use computational modelling and studies involving human observers. In the latter ones I relay on subjective reports of participants as well as on more objective measures, such as tracking of eye movements.

Teaching summary

Postgraduate tutor (PGT) – I deliver tutorials to 1st year Psychology students (basic statistics, scientific writing) and mark their course work. I also assist my supervisor in running practical classes for Perception course.

Research topics and related papers

Main project: Influence of prior knowledge on visual salience

A long-standing debate in vision science concerns the question of what aspects of a visual scene trigger the deployment of attention. The classic perspective argues that the visual system uses basic, low-level features to generate a so-called salience map of a visual scene. Attention is assumed to be allocated to areas of high salience. More recent models challenge this perspective, arguing that high-level visual representations of objects determine salience and thus how attention is deployed. According to this hypothesis, previous findings supporting the importance of low-level features are due to the fact that the used stimulus material confounded low-level features and object locations. My research project takes a new approach to this debate by addressing the question of whether prior object knowledge influences the salience map of a visual scene. Based on recent findings, my hypothesis is that prior object knowledge top-down modulates the processing of low-level features and thus restructures the visual salience map that determines attention allocation. Such a hypothesis incorporates aspects of both previous views but puts a strong emphasis on the importance of objects over low-level features in controlling deployment of attention.

Other projects:

Using subjective and objective measures of conscious visual experience to investigate crossmodal influences on binocular rivalry

Modelling statistical patterns implicitly extracted from language by its users

Funding

School of Psychology Scholarship, Cardiff University (2016-2019)

Research group

Neuroscience, Perception & Action

Research collaborators

Internal:
Dr Christoph Teufel
Dr Elisabeth von dem Hagen

External:
Monika Derda (Consciousness Laboratory, Jagiellonian University, PL)
Dr Michał Klincewicz (Cognitive Engineering Laboratory, Jagiellonian University, PL)                
Levente Madarász (Hungarian Academy of Science, HU)
Lenka Sakálošová (Faculty of Medicine, Masaryk University, CZ)
Jaana Van Overwalle (Laboratory of Experimental Psychology, Katholieke Universiteit Leuven, BE)
Dr Michał Wierzchoń (Consciousness Laboratory,  Jagiellonian University, PL)

Undergraduate education

2012 – 2015 BSc in Cognitive Science, Jagiellonian University, Kraków

2010 – 2014 BSc in Automatics Control and Robotics, AGH University of Science and Technology, Kraków

Postgraduate education

2015 – 2016 MSc in Cognitive Science, Jagiellonian University, Kraków (not completed because of starting PhD studies)

2014 – 2015 MSc in Automatics Control and Robotics, AGH University of Science and Technology, Kraków