Related Experiment Video
Updated: Jan 27, 2026
09:21
Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
12.5K
Ego- and allocentric visuospatial neglect: Dissociations, prevalence, and laterality in acute stroke
Nele Demeyere1, Celine R Gillebert1
1Department of Experimental Psychology.
Neuropsychology
|March 22, 2019
Summary
Egocentric and allocentric neglect are distinct conditions following stroke, with varying prevalence and severity. These visuospatial neglect subtypes show different recovery rates, suggesting a heterogeneous nature of the disorder.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Neurology
Background:
- Visuospatial neglect is a common post-stroke condition impacting attention to one side of space.
- Understanding the subtypes of neglect is crucial for effective diagnosis and treatment.
Purpose of the Study:
- To investigate if egocentric and allocentric neglect are functionally distinct.
- To determine the prevalence and laterality of these neglect types in early stroke.
Main Methods:
- 366 acute stroke patients were assessed using the Broken Hearts test from the Oxford Cognitive Screen.
- Prevalence, severity, and laterality of egocentric and allocentric neglect were analyzed.
- Recovery rates were tracked at 6 months in a subsample.
Main Results:
- A double dissociation was observed between egocentric and allocentric neglect.
- 50% of patients had only egocentric neglect, 25% had only allocentric neglect.
- Left-sided egocentric neglect was more prevalent and severe; left-sided allocentric neglect was more severe.
Conclusions:
- Egocentric and allocentric neglect are dissociable, supporting a heterogeneous model of visuospatial neglect.
- Visuospatial neglect is highly prevalent in both left and right hemifields post-stroke.
- Recovery rates at 6 months were 81% for egocentric and 74% for allocentric neglect.
More Related Videos
07:04Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection
Published on: March 10, 2021
4.5K
12:01Acute Dissociation of Lamprey Reticulospinal Axons to Enable Recording from the Release Face Membrane of Individual Functional Presynaptic Terminals
Published on: October 1, 2014
9.2K
Related Concept Videos
01:08Prevalence and Incidence
1.8K
In statistical epidemiology and health sciences, two essential metrics—prevalence and incidence—are fundamental for understanding disease dynamics within a population. These measures enable public health officials, epidemiologists, and researchers to assess the burden of diseases, allocate resources effectively, and design impactful public health policies and interventions.
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
1.8K
01:27Dissociative Disorders
520
Dissociative disorders represent complex psychological conditions characterized by disruptions in consciousness, memory, identity, or perception. These disruptions cause individuals to experience a disconnection from their thoughts, emotions, and memories. The phenomenon is not merely an occasional lapse in attention but a profound alteration in mental functioning that can severely impact daily life.
Dissociative Fugue
A hallmark feature of dissociative disorders is the dissociative fugue...
Dissociative Fugue
A hallmark feature of dissociative disorders is the dissociative fugue...
520
01:21Dissociative Amnesia
568
Dissociative amnesia is a complex psychological condition that manifests as an inability to recall personal information, often tied to traumatic or stressful events. Unlike general amnesia, individuals with this condition retain the ability to perform routine activities and procedural tasks, such as operating a phone or navigating public transportation, yet experience profound gaps in autobiographical memory. These lapses may encompass significant life events, such as suicide attempts or...
568
01:28Lateralization
1.0K
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
1.0K
01:30Dissociative Identity Disorder
828
Dissociative Identity Disorder (DID), previously termed multiple personality disorder, is a complex psychological condition characterized by the presence of two or more distinct identities or personality states. Each identity exhibits unique patterns of behavior, voice, and mannerisms and may possess separate memories and emotional responses. The alternating control between identities can result in memory gaps and challenges in recalling daily activities, often exacerbating the individual's...
828
01:27Cranial Bones: Lateral View
4.5K
The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
4.5K