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Concept

Gestalt-thérapie

Publications associées (15)

Specific Gestalt principles cannot explain (un)crowding

Michael Herzog, Oh-Hyeon Choung, Einat Rashal

The standard physiological model has serious problems accounting for many aspects of vision, particularly when stimulus configurations become slightly more complex than the ones classically used, e.g., configurations of Gabors rather than only one or a few ...

2023

Embedded figures in schizophrenia: A main deficit but no specificity

Michael Herzog, Maya Roinishvili, Ophélie Gladys Favrod, Michel Akselrod

Visual deficits are core deficits of schizophrenia. Classically, deficits are determined with demanding psychophysical tasks requiring fine-grained spatial or temporal resolution. Less is known about holistic processing. Here, we employed the Leuven Embedd ...

2022

Features integrate along a motion trajectory when object integrity is preserved

Michael Herzog, Leila Drissi Daoudi - Kleinbauer

Information about a moving object is usually poor at each retinotopic location because photoreceptor activation is short, noisy, and affected by shadows, reflections of other objects, and so on. Integration across the motion trajectory may yield a much bet ...

Association for Research in Vision and Ophthalmology (ARVO)2021

An overview of quantitative approaches in Gestalt perception

Michael Herzog

Gestalt psychology is often criticized as lacking quantitative measurements and precise mathematical models. While this is true of the early Gestalt school, today there are many quantitative approaches in Gestalt perception and the special issue of Vision ...

Elsevier2016

Local versus global and retinotopic versus non-retinotopic motion processing in schizophrenia

Michael Herzog, Maya Roinishvili, Albulena Jashari-Shaqiri, Marc Michael Lauffs

Schizophrenia impairs cognitive function as much as perception. For example, patients perceive global motion in random dot kinematograms less strongly, because the integration of the dots into a single Gestalt is complex (e.g., Chen, Nakayama, Levy, Matthy ...

2016

Local versus global and retinotopic versus non-retinotopic motion processing in schizophrenia patients

Michael Herzog, Maya Roinishvili, Albulena Jashari-Shaqiri, Marc Michael Lauffs

Schizophrenia impairs cognitive functions as much as perception. For example, patients perceive global motion in random dot kinematograms less strongly, because, as it is argued, the integration of the dots into a single Gestalt is complex and therefore de ...

Elsevier2016

Release of crowding by pattern completion

Michael Herzog, Gregory Francis, Mauro Manassi

In crowding, target perception deteriorates in the presence of flanking elements. Crowding is classically explained by low-level mechanisms such as pooling or feature substitution. However, we have previously shown that perceptual grouping between the targ ...

Association for Research in Vision and Ophthalmology (ARVO)2015

Crowding, grouping, timing

Michael Herzog, Vitaly Chicherov, Mauro Manassi, Aaron Michael Clarke

In crowding, target perception is deteriorated by flanking elements. For example, when a vernier is flanked by two lines of the same length, vernier offset discrimination strongly deteriorates. Interestingly, changing the color of the flankers can reduce c ...

2014

How color, regularity, and good Gestalt determine backward masking

Michael Herzog, Mauro Manassi

The strength of visual backward masking depends on the stimulus onset asynchrony (SOA) between target and mask. Recently, it was shown that the conjoint spatial layout of target and mask is as crucial as SOA. Particularly, masking strength depends on wheth ...

Association for Research in Vision and Ophthalmology (ARVO)2014

Crowding and grouping: how much time is needed to process good Gestalt?

Michael Herzog, Mauro Manassi

In crowding, perception of a target is deteriorated by flanking elements. Crowding is usually explained by pooling models where target and flanker signals are averaged. We show here that crowding is rather determined by grouping and good Gestalt. We determ ...

2013

Grouping, pooling, and when bigger is better in visual crowding

Michael Herzog, Mauro Manassi

In crowding, perception of a target is strongly deteriorated by nearby elements. Crowding is often explained by pooling models predicting that adding flankers increases crowding. In contrast, the centroid hypothesis proposes that adding flankers decreases ...

Association for Research in Vision and Ophthalmology (ARVO)2012

Gestalt Factors Modulate Basic Spatial Vision

Michael Herzog

Human perception of a stimulus varies depending on the context in which the stimulus is presented. Such contextual modulation has often been explained by two basic neural mechanisms: lateral inhibition and spatial pooling. In the present study, we presente ...

2010

Contextual Modulation and Gestalt

Michael Herzog

The perception of a stimulus can strongly be modified by its spatial context. For example, when a vernier stimulus is flanked by two lines, performance deteriorates compared to a vernier without flanks. This is usually explained by local interactions, such ...

2009

Grouping explains contextual modulation in low level vision

Michael Herzog

Performance on a target can be modified by contextual elements. For example, when a Vernier is flanked by two lines, offset discrimination deteriorates compared to an unflanked presentation. This contextual modulation is usually explained by local spatial ...

2008

Perceptual grouping induces non-retinotopic feature attribution in human vision

Michael Herzog

The human visual system computes features of moving objects with high precision despite the fact that these features can change or blend into each other in the retinotopic image. Very little is known about how the human brain accomplishes this complex feat ...

Elsevier2006