Postdoc

Anouk van Loon

Postdoc

E-mail: a.m.van.loon@vu.nl
Phone: +31 (0) 20 598 6907
Room: 1B-69

Projects

I am working on the ERC-project ‘Depicting the picture in your head’ in collaboration with Prof. Dr. Chris Olivers.

Biography

In 2005 I obtained my BSc in Clinical Neuropsychology at the University of Amsterdam and started my Masters in Cognitive Neuroscience at the University of Amsterdam. During my masters, I did my internship at the University of Cambridge at the Behavioural and Clinical Neuroscience Institute (Prof. Dr. Sahakian & Prof. Dr. Robbins). During my Masters I worked as TMS research assistant at the Amsterdam Center for the study of Adaptive Control in Brain and Behavior where I also finished my thesis on the role of emotion in action readiness using motor-TMS. (Prof. Dr. Ridderinkhof and Dr. van den Wildenberg). In 2014 I finished my PhD thesis titled: The Neurochemical correlate of consciousness: exploring neurotransmitter systems underlying conscious vision. (Prof. Dr. Lamme. & Dr. Scholte). To study this, I have applied a variety of cognitive neuroscience techniques including fMRI, TMS, EEG, MRS and pharmacology and different paradigms such as bistable perception, masking and object recognition.

Research interest

One of the most important features of human vision is that it is selective and dynamic. It flexibly samples the environment on the basis of what is relevant to our current tasks, such as finding a friend in the crowd. This means that the brain maintains some representation of what we are currently looking for, a face. This “picture in your head”, or “template”, remains a huge mystery. I’m intrigued how neural interactions across the visual cortical hierarchy guide our visual perception and how our brain integrates the “picture in our head” with incoming sensory information. I’m using different techniques such as fMRI, EEG and eye tracking to investigate the interplay between attention, perception and working memory. During my PhD, I have also studied the dynamics between bottom-up and top-down visual processes, with the focus on visual awareness. For example, I have used backward masking and different pharmacological manipulations while recording EEG to disentangle feedforward from feedback processes. In another project, I have looked at the role of GABA (by means of MRS and pharmacology) in bistable perception. I have also used Mooney images to see whether object representation, as assessed with MVPA-fMRI, changes with recognition and Ketamine.

Links

ResearchGate

Google Scholar

Recent publications

Citations
K Olmos-Solis, AM van Loon, SA Los & CNL Olivers (2017) Oculomotor measures reveal the temporal dynamics of preparing for search. Progress in Brain Research
AM van Loon, K Olmos-Solis & CNL Olivers (2017) Subtle eye movement metrics reveal task-relevant representations prior to visual search. Journal of Vision 17 (6), 13-131
HM Kondo, AM van Loon, JI Kawahara & BCJ Moore (2017) Auditory and visual scene analysis: an overview. Phil. Trans. R. Soc. B 372 (1714), 201600995
KO Solis, A Van Loon & C Olivers (2016) Tracking the dynamics of working memory representations through the eyes. Journal of Vision 16 (12), 1161-1161
A van Loon, C Archeo & C Olivers (2016) Tracking the dynamics of visual working memory representations using steady-state-visual-evoked potentials. Journal of Vision 16 (12), 710-710
AM van Loon, JJ Fahrenfort, B van der Velde, PB Lirk, NCC Vulink & ... (2015) NMDA receptor antagonist ketamine distorts object recognition by reducing feedback to early visual cortex. Cerebral Cortex 26 (5), 1986-19969
NA Kloosterman, T Meindertsma, AM van Loon, VAF Lamme, YS Bonneh & ... (2015) Pupil size tracks perceptual content and surprise. European Journal of Neuroscience24
S Van Gaal, L Naccache, JDI Meuwese, AM Van Loon, AH Leighton & ... (2014) Can the meaning of multiple words be integrated unconsciously?. Phil. Trans. R. Soc. B 369 (1641), 2013021237
JDI Meuwese, AM van Loon, VAF Lamme & JJ Fahrenfort (2014) The subjective experience of object recognition: comparing metacognition for object detection and object categorization. Attention, Perception, & Psychophysics 76 (4), 1057-10684
AM van Loon (2014) SOURCE (OR PART OF THE FOLLOWING SOURCE): Type PhD thesis Title The neurochemical correlate of consciousness: exploring neurotransmitter systems underlying conscious vision.
AM van Loon (2014) The neurochemical correlate of consciousness: exploring neurotransmitter systems underlying conscious vision. Current Biology 23 (9), 823-827
JDI Meuwese, AM van Loon, HS Scholte, PB Lirk, NCC Vulink & ... (2013) NMDA receptor antagonist ketamine impairs feature integration in visual perception. PloS one 8 (11), e7932610
AM van Loon, HS Scholte, JJ Fahrenfort, B van der Velde, PB Lirk & ... (2013) Ketamine changes the neural representation of object recognition in early visual cortex.. Journal of Vision 13 (9), 129-129
IG Sligte, HS Scholte, AM van Loon & VAF Lamme (2013) A direct link between primary visual cortex functioning and iconic memory capacity. Journal of Vision 13 (9), 460-460
AMV Gerlicher, AM van Loon, HS Scholte, VAF Lamme & AR van der Leij (2013) Emotional facial expressions reduce neural adaptation to face identity. Social cognitive and affective neuroscience 9 (5), 610-61413
AM van Loon, T Knapen, HS Scholte, ES John-Saaltink, TH Donner & ... (2013) GABA shapes the dynamics of bistable perception. Current Biology 23 (9), 823-82787
AM van Loon, H Scholte, JJ Fahrenfort, B van der Velde, PB Lirk & ... (2013) Ketamine changes the neural representation of object recognition. Perception ECVP abstract 42, 162-162
AM van Loon, HS Scholte, S van Gaal, BJJ van der Hoort & VAF Lamme (2012) GABAA agonist reduces visual awareness: a masking–EEG experiment. Journal of Cognitive Neuroscience 24 (4), 965-97422
AM van Loon (2011) A transcranial magnetic stimulation srudy of emotional processing and the role of the motor cortex. Universiteit van Amsterdam, Digital repository [http://dare. uva. nl ...
AM van Loon, HS Scholte & VAF Lamme (2010) Lorazepam reduces stimulus visibility by impairing recurrent processing in visual cortex. Journal of Vision 10 (7), 927-9271

View full list of publications on Google Scholar