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Andreas Widmann
Leibniz Institute for Neurobiology
Stimulus (physiology)PsychologyCognitive psychologyMismatch negativityDistraction
67Publications
25H-index
1,869Citations
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Publications 66
Newest
#1Jakob Fink-Lamotte (Leipzig University)
#2Andreas Widmann (Leibniz Institute for Neurobiology)H-Index: 25
Last. Cornelia Exner (Leipzig University)H-Index: 8
view all 4 authors...
Biased processing of disgust-related stimuli is increasingly discussed in addition to fear-related processing as a maintenance factor for contamination-based obsessive-compulsive disorder (C-OCD). However, the differential impact of fear and disgust on biased processing in C-OCD is not yet completely understood. Because it is difficult to distinguish the two emotions in self-report assessment by directly addressing the specific emotions, a text paragraph-based interpretation bias paradigm was ap...
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#1Alie G. Male (Murdoch University)
#2Robert P. O'Shea (SCU: Southern Cross University)H-Index: 20
Last. Andreas Widmann (Leibniz Institute for Neurobiology)H-Index: 25
view all 6 authors...
Research shows that the visual system monitors the environment for changes. For example, a left-tilted bar, a deviant, that appears after several presentations of a right-tilted bar, standards, elicits a classic visual mismatch negativity (vMMN): greater negativity for deviants than standards in event-related potentials (ERPs) between 100 and 300 ms after onset of the deviant. The classic vMMN is contributed to by adaptation; it can be distinguished from the genuine vMMN that, through use of con...
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#1Carolina Bonmassar (Leibniz Institute for Neurobiology)
#2Andreas Widmann (Leibniz Institute for Neurobiology)H-Index: 25
Last. Nicole Wetzel (Leibniz Institute for Neurobiology)H-Index: 12
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Abstract Focusing on relevant and ignoring irrelevant information is essential for many learning processes. The present study investigated attention-related brain activity and pupil dilation responses, evoked by task-irrelevant emotional novel sounds. In the framework of current theories about the relation between attention and the locus coeruleus-norepinephrine (LC-NE) system, we simultaneously registered event-related potentials (ERPs) in the EEG and changes in pupil diameter (PDR). Unexpected...
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#1Nicole Wetzel (Leibniz Institute for Neurobiology)H-Index: 12
#2Wolfgang Einhäuser (Chemnitz University of Technology)H-Index: 30
Last. Andreas Widmann (Leibniz Institute for Neurobiology)H-Index: 25
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Abstract Episodic memory, the ability to remember past events in time and place, develops during childhood. Much knowledge about the underlying neuronal mechanisms has been gained from methods not suitable for children. We applied pupillometry to study memory encoding and recognition mechanisms. Children aged 8 and 9 years (n = 24) and adults (n = 24) studied a set of visual scenes to later distinguish them from new pictures. Children performed worse than adults, demonstrating immature episodic ...
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#1Nicole Wetzel (Leibniz Institute for Neurobiology)H-Index: 12
#2Florian Scharf (Leipzig University)H-Index: 2
Last. Andreas Widmann (Leipzig University)H-Index: 25
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2 CitationsSource
#1Betina Korka (Leipzig University)
#2Erich Schröger (Leipzig University)H-Index: 63
Last. Andreas Widmann (Leibniz Institute for Neurobiology)H-Index: 25
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We act on the environment to produce desired effects, but we also adapt to the environmental demands by learning what to expect next, based on experience: How do action-based predictions and sensor...
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#1Maria V. Stuckenberg (MPG: Max Planck Society)
#2Erich Schröger (Leipzig University)H-Index: 63
Last. Andreas Widmann (Leibniz Institute for Neurobiology)H-Index: 25
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Predictions about forthcoming auditory events can be established on the basis of preceding visual information. Sounds being incongruent to predictive visual information have been found to elicit an enhanced negative ERP in the latency range of the auditory N1 compared with physically identical sounds being preceded by congruent visual information. This so-called incongruency response (IR) is interpreted as reduced prediction error for predicted sounds at a sensory level. The main purpose of this...
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#1Andreas Widmann (Leipzig University)H-Index: 25
#2Erich Schröger (Leipzig University)H-Index: 63
Last. Nicole Wetzel (Leibniz Institute for Neurobiology)H-Index: 12
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Abstract Novel sounds in the auditory oddball paradigm elicit a biphasic dilation of the pupil (PDR) and P3a as well as novelty P3 event-related potentials (ERPs). The biphasic PDR has been hypothesized to reflect the relaxation of the iris sphincter muscle due to parasympathetic inhibition and the constriction of the iris dilator muscle due to sympathetic activation. We measured the PDR and the P3 to neutral and to emotionally arousing negative novels in dark and moderate lighting conditions. B...
11 CitationsSource
#1Anna Marzecová (Vrije Universiteit Brussel)H-Index: 8
#2Antonio Schettino (UGent: Ghent University)H-Index: 6
Last. Erich Schröger (Leipzig University)H-Index: 63
view all 6 authors...
Several theoretical and empirical studies suggest that attention and perceptual expectations influence perception in an interactive manner, whereby attentional gain is enhanced for predicted stimuli. The current study assessed whether attention and perceptual expectations interface when they are fully orthogonal, i.e., each of them relates to different stimulus features. We used a spatial cueing task with block-wise spatial attention cues that directed attention to either left or right visual fi...
2 CitationsSource
#1Nicole Wetzel (Leipzig University)H-Index: 12
#2Erich Schröger (Leipzig University)H-Index: 63
Last. Andreas Widmann (Leipzig University)H-Index: 25
view all 5 authors...
Unexpected novel sounds occurring outside the current focus of attention can involuntarily capture attention. The underlying mechanisms can be investigated measuring the pupil dilation response (PDR) and the event-related potential (ERP) component P3a in the EEG (for review see, Wetzel and Schroger, 2014 ). Emotional sounds have a high relevance and might cause a stronger orienting of attention and evaluation for novelty than neutral sounds. Emotional arousal was previously associated with incre...
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