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Posts

Future Blog Post

less than 1 minute read

Published: January 01, 2199

This post will show up by default. To disable scheduling of future posts, edit config.yml and set future: false.

Blog Post number 4

less than 1 minute read

Published: August 14, 2015

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

Blog Post number 3

less than 1 minute read

Published: August 14, 2014

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

Blog Post number 2

less than 1 minute read

Published: August 14, 2013

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

Blog Post number 1

less than 1 minute read

Published: August 14, 2012

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

portfolio

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publications

Frontoparietal Cortex Mediates Perceptual Transitions in Bistable Perception

Published in The Journal of Neuroscience, 2013

This study investigates the functional role of inferior frontal cortex in bistable perception. It uses fMRI and Dynamic Causal Modeling to reveal a mediation of perceptual transitions during bistable perception by activity in inferior frontal gyrus.

Recommended citation: Weilnhammer VA, Ludwig K, Hesselmann G, Sterzer P. Frontoparietal Cortex Mediates Perceptual Transitions in Bistable Perception. Journal of Neuroscience, 33(40). 16009 - 16015. https://doi.org/10.1523/JNEUROSCI.1418-13.2013

Revisiting the Lissajous Figure as a Tool to Study Bistable Perception

Published in Vision Research, 2014

Ecological validity governs the perceptual states elicited by ambiguous Lissajous figures.

Recommended citation: Weilnhammer VA, Ludwig K, Hesselmann G, Sterzer P. Revisiting the Lissajous Figure as a Tool to Study Bistable Perception. Vision Research 2014, 98. 107 - 112. https://doi.org/10.1016/j.visres.2014.03.013

Perceptual Stability of the Lissajous Figure is modulated by the Speed of Illusory Rotation

Published in PLOS One, 2016

Model-based analyses of behavior show that stronger beliefs in the stability of the visual environment determine perceptual states during bistable perception in healthy observers.

Recommended citation: Weilnhammer VA, Sterzer P, Hesselmann G (2016) Perceptual Stability of the Lissajous Figure Is Modulated by the Speed of Illusory Rotation. PLoS ONE 11(8): e0160772. https://doi.org/10.1371/journal.pone.0160772

Learning what to See in a Changing World

Published in Frontiers in Human Neuroscience, 2016

This study introduces an innovative computational model based on Bayesian decision theory. It shows that dynamic beliefs acquired during associative learning shape perceptual states during sensory ambiguity in healthy participants.

Recommended citation: Schmack K, Weilnhammer VA, Heinzle J, Stephan KE, Sterzer P. Learning what to See in a Changing World. Frontiers in Human Neuroscience 2016, 10. https://doi.org/10.3389/fnhum.2016.00263

Psychotic experiences and overhasty inferences are related to maladaptive learning

Published in PLOS Computational Biology, 2017

Model-based analyses of behavior show that a decreased adaptiveness of learning predicts delusional ideation and hallucinatory experiences in healthy participants.

Recommended citation: Stuke HE, Stuke HA, Weilnhammer VA, Schmack K. Psychotic experiences and overhasty inferences are related to maladaptive learning. PLOS Computational Biology 2017. 13(1):e1005328. https://doi.org/10.1371/journal.pcbi.1005328

A predictive coding account of bistable perception - a model-based fMRI study

Published in PLOS Computational Biology, 2017

This study introduces a novel predictive-coding model of bistable perception. Model-based fMRI reveals that activity in inferior frontal cortex correlates with prediction errors during bistable perception.

Recommended citation: Weilnhammer VA, Stuke H, Hesselmann G, Sterzer P, Schmack K. A predictive coding account of bistable perception - a model-based fMRI study. PLOS Computational Biology 2017. 15; 13(5):e1005536. https://doi.org/10.1371/journal.pcbi.1005536

Delusion Proneness is Linked to a Reduced Usage of Prior Beliefs in Perceptual Decisions

Published in Schizophrenia Bulletin, 2018

Delusion-prone individuals are less susceptible to biases in perceptual decision-making introduced by prior beliefs.

Recommended citation: Stuke H, Weilnhammer VA, Sterzer P, Schmack K. Delusion Proneness is Linked to a Reduced Usage of Prior Beliefs in Perceptual Decisions. Schizophrenia Bulletin 2018. https://doi.org/10.1093/schbul/sbx189

The Neural Correlates of Hierarchical Predictions for Perceptual Decisions

Published in Journal of Neuroscience, 2018

Model-based fMRI shows a distinct distribution in the neural correlates of hierarchically structured sensory predictions in healthy participants. High-level predictions correlate with activity in supra-modal areas such as orbitofrontal cortex and hippocampus, while low-level predictions are represented by BOLD-activity in primary visual cortex.

Recommended citation: Weilnhammer VA, Stuke H, Hesselmann G, Sterzer P, Schmack K. The Neural Correlates of Hierarchical Predictions for Perceptual Decisions. The Journal of Neuroscience 2018. 38(21), 5008-5021. https://doi.org/10.1523/JNEUROSCI.2901-17.2018

Psychotic Experiences in Schizophrenia and Sensitivity to Sensory Evidence

Published in Schizophrenia Bulletin, 2020

Perceptual disturbances in schizophrenia are related to an decreased prior-to-likelihood balance at sensory processing levels.

Recommended citation: Weilnhammer VA, Lukas R, Eckert AL, Stuke H, Heinz A, Sterzer P. Psychotic Experiences in Schizophrenia and Sensitivity to Sensory Evidence. Schizophrenia Bulletin 2020. https://doi.org/10.1093/schbul/sbaa003

Overly Strong Priors for Socially Meaningful Visual Signals Are Linked to Psychosis Proneness in Healthy Individuals

Published in Frontiers in Psychology, 2021

This paper shows an overly strong prior for socially meaningful information in people with psychotic experiences that extends beyond the domain of auditory perception and might also affect early unconscious stages of sensory processing.

Recommended citation: Heiner Stuke, Elisabeth Kress, Veith Andreas Weilnhammer, Philipp Sterzer, Katharina Schmack. Overly Strong Priors for Socially Meaningful Visual Signals Are Linked to Psychosis Proneness in Healthy Individuals. Frontiers in Psychology 2021. https://doi.org/10.3389/fpsyg.2021.583637

Bistable Perception Alternates between Internal and External Modes of Sensory Processing

Published in iScience, 2021

Perception fluctuates between external and internal modes of sensory processing.

Recommended citation: Weilnhammer VA, Chikermane M, Sterzer P. Bistable perception alternates between internal and external modes of sensory processing. iScience 2021. https://doi.org/10.1016/j.isci.2021.102234

An Active Role of Inferior Frontal Cortex in Conscious Experience

Published in Current Biology, 2021

Inferior frontal cortex detects and resolves perceptual conflict during bistable perception.

Recommended citation: Weilnhammer VA, Fritsch M, Chikermane M, Eckert AL, Kanthak K, Stuke H, Kaminski J, Sterzer P. An Active Role of Inferior Frontal Cortex in Conscious Experience. Current Biology 2021. https://doi.org/10.1016/j.cub.2021.04.043

Humans and mice fluctuate between external and internal modes of sensory processing

Published in BioRxiv, 2021

1/f fluctuations in the strength of serial dependencies provide a new explanation for ongoing changes in perceptual performance

Recommended citation: Weilnhammer VA, Heiner S, Eckert A-L, Standvoß K, Sterzer P. Humans and mice fluctuate between external and internal modes of sensory processing. bioRxiv 2021. https://doi.org/10.1101/2021.08.20.457079

Associative learning under uncertainty in adults with autism: Intact learning of the cue-outcome contingency, but slower updating of priors

Published in Autism, 2021

Autistic individual show slower updates in cross-modal associations.

Recommended citation: Sapey-Triomphe LA, Weilnhammer VA, Wagemans J. Associative learning under uncertainty in adults with autism: Intact learning of the cue-outcome contingency, but slower updating of priors. Autism 2021. https://doi.org/10.1177/13623613211045026

Autobiographical Script-Driven Imagery Has No Detectable Effect on Emotion Regulation in Healthy Individuals

Published in Neuropsychobiology, 2021

fMRI did not reveal an effect of autobiographical script-driven imagery on emotion regulation in healthy controls-

Recommended citation: Köhler S, Weilnhammer VA, Walter H, Erk S, Sterzer P, Guhn A. Autobiographical Script-Driven Imagery Has No Detectable Effect on Emotion Regulation in Healthy Individuals. Neuropsychobiology 2021. https://doi.org/10.1159/000518996

Sparse models for predicting psychosocial impairments in patients with PTSD: An empirical Bayes approach

Published in Psychological trauma: theory, research, practice, and policy, 2022

Patients with severe depressive and numbing symptoms particularly struggle with disease-related impairments during everyday activities, while gender, posttraumatic cognitions, and reexperience and avoidance symptoms had no or very little impact on functioning.

Recommended citation: Stuke H, Priebe K, Weilnhammer VA, Stuke Ha, Schoofs N. Autobiographical Script-Driven Imagery Has No Detectable Effect on Emotion Regulation in Healthy Individuals. Psychological trauma: theory, research, practice, and policy 2022. http://dx.doi.org/10.1037/tra0001279

Sensory and environmental uncertainty in perceptual decision-making

Published in iScience, 2023

Environmental uncertainty modulates perceptual decision-making when sensory signals are imprecise.

Recommended citation: Merve F, Weilnhammer VA, Thiele P, Heinz A, Sterzer P. AEnvironmental uncertainty modulates perceptual decision-making when sensory signals are imprecise. iScience 2023. http://dx.doi.org/10.1037/tra0001279

The construction of unambiguous conscious experiences from ambiguous sensory information

Published in FU Refubium, 2023

Habilitation treatise submitted to Charité Universitätsmedizin Berlin.

Recommended citation: Weilnhammer VA. The construction of unambiguous conscious experiences from ambiguous sensory information. Habilitation treatise, defended 23/10/2023. FU Refubium, http://dx.doi.org/10.17169/refubium-40937. http://dx.doi.org/10.17169/refubium-40937

Neural correlates of hierarchical predictive processes in autistic adults

Published in Nature Communications, 2023

Prediction errors yielded activation in shared regions in neurotypical adults and patients diagnosed with autism spectrum disorder, but group differences were found in the anterior cingulate cortex and putamen.

Recommended citation: Sapey-Triomphe LA, Pattyn L, Weilnhammer VA, Sterzer P, Wagemans J. Neural correlates of hierarchical predictive processes in autistic adults. Nature communications 2023. http://dx.doi.org/10.1037/tra0001279

Sensory processing in humans and mice fluctuates between external and internal modes

Published in PLOS Biology, 2023

Humans and mice cycle through recurring intervals of reduced sensitivity to external sensory information, during which they rely more strongly on perceptual history, i.e., an internal prediction that is provided by the sequence of preceding choices.

Recommended citation: Weilnhammer VA, Stuke H, Standvoss K, Sterzer P. Sensory processing in humans and mice fluctuates between external and internal modes. PLOS Biology 2023. https://doi.org/10.1371/journal.pbio.3002410

Where is the ghost in the shell?

Published in Neuroscience of Consciousness, 2024

New evidence suggests that transcranial magnetic stimulation of the parietal cortex does not modulate bistable perception. Here, I discuss what this means for the neural correlates of consciousness, and how should we search for them.