News

This webpage announces recent articles, symposia and people joining/leaving the group.  You may subscribe to these posts using RSS.

Paper accepted in NeuroImage

posted Sep 22, 2017, 3:51 AM by Floris de Lange

Albers AM, Meindertsma T, Toni I, de Lange FP (2017). Decoupling of BOLD amplitude and pattern classification of orientation-selective activity in human visual cortex. NeuroImage, in press.

Paper accepted in Scientific Reports

posted Aug 21, 2017, 1:45 AM by Floris de Lange

Utzerath C, St John Saaltink E, Buitelaar J, de Lange FP (2017). Repetition suppression to objects is modulated by stimulus-specific expectations. Scientific Reports, 8;7(1):8781. pdf

Paper accepted in PNAS

posted Aug 18, 2017, 2:43 AM by Floris de Lange

Kok P, Mostert P, de Lange FP (2017). Prior expectations induce pre-stimulus sensory templates. Proceedings of the National Academy of Sciences, in press.

Paper accepted in NeuroImage

posted Jul 17, 2017, 2:41 AM by Floris de Lange

Lawrence SJD, Formisano E, Muckli L, de Lange FP (2017). Laminar fMRI: Applications for cognitive neuroscience. NeuroImage, in press. pdf

Anke Marit Albers successfully defends her PhD thesis and is interviewed by de Volkskrant

posted Mar 23, 2017, 1:02 AM by Floris de Lange

Anke Marit Albers has successfully defended her PhD thesis!
De Volkskrant published a very nice interview with her about her PhD research. Click here for a pdf of the interview (in Dutch).

Paper accepted in Trends in Cognitive Sciences

posted Mar 14, 2017, 12:34 AM by Floris de Lange

de Lange FP, Fritsche M (2017). Perceptual decision-making: picking the low-hanging fruit? Trends in Cognitive Sciences, in press.

Paper accepted in Journal of Neurophysiology

posted Feb 6, 2017, 4:38 AM by Floris de Lange

te Woerd E, Oostenveld R, de Lange FP, Praamstra P (2017). Impaired auditory-to-motor entrainment in Parkinson's disease. Journal of Neurophysiology, in press.

Paper accepted in Nature Communications

posted Jan 30, 2017, 2:49 AM by Floris de Lange

Ekman M, Kok P, de Lange FP (2017). Time-compressed preplay of anticipated events in human primary visual cortex. Nature Communications, in press.

ECVP2017 symposium on sequential dependencies in perceptual choice

posted Jan 9, 2017, 6:17 AM by Floris de Lange

The symposium proposal "Unraveling Sequential Dependencies in Perceptual Choice" has been accepted for presentation at ECVP 2017 in Berlin.
More information on the symposium below.

Organizers:
Tobias H. Donner
University Medical Center Hamburg-Eppendorf

Floris de Lange
Radbound University Nijmegen

Motivation:
Observer's judgments about their environment do not only depend on the current sensory input, but also on the behavioral context (1). One important contextual factor biasing perceptual choice has been known for almost a century: the history of preceding judgments and stimuli (2). In standard psychophysical tasks used in the laboratory, stimuli are often independent across subsequent trials. Consequently, serial dependencies in observers’ perceptual judgments are maladaptive (i.e., reducing performance below what could be achieved given their sensitivity). Yet, sequential biases are pervasive in perceptual choice, even in highly trained human and non-human observers. The origin and adaptive value of these sequential choice biases remain poorly understood.

Aim and Recurrent Theme:
The aim of this symposium will be to highlight and discuss recent progress in unraveling the computational and neural mechanisms governing sequential biases in perceptual choice. All speakers are renowned experts in perceptual decision-making. They come from different backgrounds and represent a diversity of experimental approaches and theoretical perspectives. The recurrent theme of the symposium will be the candidate factors that might jointly shape sequential choice biases, such as: the inferred serial correlation structure of the environment; perceptual uncertainty and arousal; the history of physical stimuli, perceptual choices, and motor responses. The talks will cover studies of different species (humans, monkeys, rodents), sensory modalities (vision, audition), experimental techniques and levels of analysis (single-unit recordings, neuroimaging, behavioral psychophysics, computational modeling), using quantitative approaches throughout. Integrating these diverse approaches within a single symposium will help identify general mechanistic principles underlying serial dependencies in perceptual choice. These principles will be of general relevance to anyone studying perception and decision-making.

References:
(1) Gold, J. I. & Shadlen, M. N. The Neural Basis of Decision Making. Annu. Rev. Neurosci. 30, 535–574 (2007).
(2) Fernberger, S. W. Interdependence of judgments within the series for the method of constant stimuli. J. Exp. Psychol. 3, 126 (1920).


Speakers & Topics:

Tobias H. Donner, University Medical Center Hamburg-Eppendorf: Quantifying the effect of arousal state on sequential biases in human perceptual choice
(http://www.tobiasdonner.net)

Floris de Lange, Radbound University Nijmegen: Behavioral and neural determinants of serial dependence in perceptual decisions
(http://www.florisdelange.com)

Justin Gardner, Stanford University: Asymmetric adaptability of human sequential dependencies suggests strategic confirmation bias
(http://gru.stanford.edu/doku.php)

Jaime de la Rocha, IDIBAPS, Barcelona: Characterizing the dynamics of across-trial evidence accumulation in rodents and its neural correlates
(http://neuro.fcrb.es/delaRochaLab/)

Hendrikje Nienborg, Centre for Integrative Neuroscience, Tübingen: Can sequential dependencies in choices and neural activity explain decision-related activity of single neurons in monkey early visual cortex?
(http://www.cin.uni-tuebingen.de/research/research-groups/junior-research-groups/neurophysiology-of-visual-and-decision-processes/research-directions.html)

Angela Yu, University of California, San Diego: Computational modeling of sequential effects in perception, cognitive control, and decision-making
(http://www.cogsci.ucsd.edu/~ajyu/)

Paper accepted in Current Biology

posted Jan 2, 2017, 12:40 AM by Floris de Lange

Fritsche M, Mostert P, de Lange FP (2017). Opposite Effects of Recent History on Perception and Decision. Current Biology, in press.

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