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Albulena Jashari-Shaqiri

Cette personne a quitté l’EPFL

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Publications associées (30)

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Schizophrenia patients using atypical medication perform better in visual tasks than patients using typical medication

Michael Herzog, Maya Roinishvili, Albulena Jashari-Shaqiri

Schizophrenia (SCZ) patients show deficits in many domains, including cognition and perception. However, results are often mixed. One reason for mixed results may be differences in medication. Very little is known about the role of medication in visual pro ...

2019

Does chronic nicotine consumption influence visual backward masking in schizophrenia and schizotypy?

Michael Herzog, Maya Roinishvili, Christine Mohr, Albulena Jashari-Shaqiri

Nicotine consumption is higher for people within the schizophrenia spectrum compared to controls. This observation supports the self-medication hypothesis, that nicotine relives symptoms in, for example, schizophrenia patients. We tested whether performanc ...

2015

A factorial approach in aging research

Michael Herzog, Albulena Jashari-Shaqiri, Aaron Michael Clarke

The population of developed countries is aging at an ever increasing rate. Even in the absence of neurodegenerative diseases, aging affects perceptual and cognitive functions that are crucial for everyday life. The effects of healthy aging on cognitive abi ...

2017

Perception of visual illusions is intact in schizophrenia

Michael Herzog, Maya Roinishvili, Lukasz Grzeczkowski, Albulena Jashari-Shaqiri

There seems to be no common factor for visual perception because performance levels in many visual tasks correlate only weakly with each other. Similar results were found with visual illusions. However, one may expect common visual factors for individuals ...

2018

Is there a common cause for perceptual decline in the aging brain?

Michael Herzog, Aaron Michael Clarke, Albulena Jashari-Shaqiri

Even in the absence of neurodegenerative disease, aging strongly affects vision. Whereas optical deficits are well documented, much less is known perceptual deficits. In most perceptual studies, one paradigm is tested and it is usually found that older par ...

Sage Publications Ltd2016

Multi-factorial approach in aging research

Michael Herzog, Albulena Jashari-Shaqiri, Aaron Michael Clarke

The developed world is aging faster than ever before. Even in the absence of neurodegenerative disease, aging affects all kinds of human functions including perception and cognition. In most perceptual studies, one paradigm is tested and it is usually foun ...

2017

Endophenotypes of schizophrenia: electrophysiological correlates of first episode patients

Michael Herzog, Maya Roinishvili, Albulena Jashari-Shaqiri, Ophélie Gladys Favrod

Schizophrenia is a heterogeneous disorder and among other symptoms, patients have important visual impairments. Visual paradigms are therefore important tools to investigate the mechanisms of schizophrenia. During the last period of the NCCR, we have chara ...

2015

The effects of aging on perception and cognition

Michael Herzog, Aaron Michael Clarke, Albulena Jashari-Shaqiri, Daniela Herzig

Association for Research in Vision and Ophthalmology2015

Crowding, grouping, and gain control in schizophrenia

Michael Herzog, Maya Roinishvili, Albulena Jashari-Shaqiri

isual paradigms are versatile tools to investigate the pathophysiology of schizophrenia. Contextual modulation refers to a class of paradigms where a target is flanked by neighbouring elements, which either deteriorate or facilitate target perception. It i ...

Elsevier2015

Statistical Learning Impairments as a Consequence of Stroke

Albulena Jashari-Shaqiri

Statistical learning is the implicit learning of the contingencies between sequential stimuli, typically from mere exposure. It is present from infancy onward, and plays a role in functions from language learning to selective attention. Despite these obser ...

2018

The individual structure of visual space

Michael Herzog, Gregory Francis, Lukasz Grzeczkowski, Albulena Jashari-Shaqiri, Aline Françoise Cretenoud

Common factors are ubiquitous. First, we show that, however in vision, correlations of performance in similar paradigms are low even though test-retest reliability is high. Second, one might expect that correlations increase with increasing age because of ...

2018

Multi-factorial approach in aging research

Michael Herzog, Albulena Jashari-Shaqiri, Aaron Michael Clarke

Aging affects all kinds of human functions including perception and cognition. In most perceptual studies, one paradigm is tested and it is usually found that older participants perform worse than younger participants. Implicitly, these results are taken a ...

2017

Visual masking deficits in schizophrenia: a view into the genetics of the disease through an endophenotype

Michael Herzog, Jacques Fellay, Albulena Jashari-Shaqiri, Janir Nuno Ramos Antunes Da Cruz, Flavia Aurelia Shoko Hodel

Schizophrenia is a severe psychiatric disorder determined by a complex mixture of genetic and environmental factors. To better understand the contributions of human genetic variations to schizophrenia, we performed a genome-wide association study (GWAS) of ...

2022

No Evidence for a Common Factor Underlying Visual Abilities in Healthy Older People

Michael Herzog, Albulena Jashari-Shaqiri, Aline Françoise Cretenoud, Aaron Michael Clarke

The world's population is aging at an increasing rate. Even in the absence of neurodegenerative disorders, healthy aging affects perception and cognition. In the context of cognition, common factors are well established. Much less is known about common fac ...

AMER PSYCHOLOGICAL ASSOC2019

Electrophysiological correlates of visual backward masking in first-episode psychosis

Michael Herzog, Maya Roinishvili, Albulena Jashari-Shaqiri, Janir Nuno Ramos Antunes Da Cruz, Ophélie Gladys Favrod

Schizophrenia is a heterogeneous disorder and among other symptoms, patients have important visual impairments. Visual paradigms are therefore important tools to investigate the mechanisms of schizophrenia. We have previously shown that visual backward mas ...

2017

Is the perception of illusions abnormal in schizophrenia?

Michael Herzog, Maya Roinishvili, Lukasz Grzeczkowski, Albulena Jashari-Shaqiri

There seems to be no common factor for visual perception, i.e., performance in visual tasks correlates only weakly with each other. Similar results were found with visual illusions. One may expect common visual factors for individuals suffering from pathol ...

2018

Neural correlates of visual backward masking in psychosis

Michael Herzog, Maya Roinishvili, Christine Mohr, Albulena Jashari-Shaqiri, Janir Nuno Ramos Antunes Da Cruz, Ophélie Gladys Favrod

In visual backward masking (VBM), a target is followed by a mask, which deteriorates performance on the target. Schizophrenia and first episodes patients show strong behavioral deficits, reflected in strongly reduced amplitudes of the EEG as compared to co ...

2017

Rethinking Body Ownership in Schizophrenia: Experimental and Meta-analytical Approaches Show no Evidence for Deficits

Michael Herzog, Olaf Blanke, Maya Roinishvili, Ophélie Gladys Favrod, Roy Salomon, Albulena Jashari-Shaqiri, Mariia Kaliuzhna

Schizophrenia is a severe psychiatric disorder, in which patients experience an abnormal sense of self. While deficits in sensorimotor self-representation (agency) are well docu- mented in schizophrenia, less is known about other aspects of bodily self-rep ...

Oxford University Press2018

Perception of Visual Illusions Is Intact in Schizophrenia

Michael Herzog, Maya Roinishvili, Lukasz Grzeczkowski, Albulena Jashari-Shaqiri

SAGE PUBLICATIONS LTD2019

Neural Compensation Mechanisms of Siblings of Schizophrenia Patients as Revealed by High-Density EEG

Michael Herzog, Maya Roinishvili, Patricia Figueiredo, Albulena Jashari-Shaqiri, Janir Nuno Ramos Antunes Da Cruz, Ophélie Gladys Favrod

Visual backward masking (VBM) deficits are candidate endophenotypes of schizophrenia indexing genetic liability of the disorder. In VBM, a target is followed by a mask that deteriorates target perception. Schizophrenia patients and, to a lesser extent, the ...

2020