0000000000389855

AUTHOR

Mohamed Saoud

0000-0002-9901-8846

showing 2 related works from this author

Visuospatial processing in schizophrenia: Does it share common mechanisms with pseudoneglect?

2011

International audience; ''Schizophrenia patients demonstrate behavioural and cerebral lateralised anomalies, prompting some authors to suggest they exhibit a mild form of right unilateral neglect. To better describe and understand lateralised visuospatial anomalies in schizophrenia, three experiments were run using tasks often utilised to study visuospatial processing in healthy individuals and in neglect patients: the Behavioural Inattention Test (BIT), the manual line bisection task with and without a local cueing paradigm, the landmark task (or line bisection judgement), and the number bisection task. Although the schizophrenia patients did not exhibit the full-blown neglect syndrome, th…

AdultMaleendocrine systemSchizophrenia (object-oriented programming)Behavioural inattention testBisectionmedia_common.quotation_subjectSPATIAL ATTENTIONMENTAL NUMBER LINEHANDbehavioral disciplines and activities050105 experimental psychologyTask (project management)NeglectPerceptual DisordersBRAIN-DAMAGEYoung Adult03 medical and health sciencesLANDMARK TASK0302 clinical medicineArts and Humanities (miscellaneous)PerceptionHumans0501 psychology and cognitive sciencesMild formGeneral Psychologymedia_common[SCCO.NEUR]Cognitive science/Neuroscience05 social sciencesGeneral MedicinePERFORMANCEUNILATERAL NEGLECT''MENTAL NUMBER LINEHEMISPATIAL NEGLECTHAND''Unilateral neglectSpace Perception[ SCCO.NEUR ] Cognitive science/NeuroscienceSchizophreniaVisual PerceptionFemaleSchizophrenic PsychologyHEMISPHERIC-ASYMMETRYPsychologyPhotic StimulationBISECTION JUDGMENTSpsychological phenomena and processes030217 neurology & neurosurgeryCognitive psychologyLaterality: Asymmetries of Body, Brain and Cognition
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Pseudoneglect in schizophrenia: A line bisection study with cueing

2007

Numerous authors have reported the existence of lateralised abnormalities towards the right side in patients with schizophrenia.In the present study, a manual line bisection task was used to assess the existence of a visuospatial bias in patients with schizophrenia as compared to healthy subjects and left unilateral neglect patients. In addition, we used a local cueing paradigm (consisting of a number placed on the right, on the left, or at both ends of the line).Healthy subjects showed a leftwards trend in the "no cue" condition (known as pseudoneglect) and neglect patients showed a right bias in all cue conditions. In contrast, patients with schizophrenia placed their manual estimation of…

AdultMalemedicine.medical_specialtyPsychosisCognitive Neurosciencemedia_common.quotation_subjectSchizophrenia (object-oriented programming)AudiologyNeglectPerceptual DisordersmedicineHumansIn patientmedia_commonHealthy subjectsSpace perceptionCognitionMiddle Agedmedicine.diseasePsychiatry and Mental healthUnilateral neglectSpace PerceptionSchizophreniaVisual PerceptionFemaleCuesVisual FieldsPsychologyAntipsychotic AgentsCognitive psychologyCognitive Neuropsychiatry
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