Hemispatial neglect: Difference between revisions
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{{Infobox medical condition | |||
| name = Hemispatial neglect | |||
| image = [[File:Gray1197.png|left|thumb|Illustration of the brain showing the areas affected by hemispatial neglect]] | |||
| caption = Areas of the brain affected by hemispatial neglect | |||
| field = [[Neurology]] | |||
| synonyms = Unilateral neglect, spatial neglect, hemiagnosia | |||
| symptoms = Inability to attend to stimuli on one side of the body or environment | |||
| onset = Sudden, often following a [[stroke]] or [[brain injury]] | |||
| duration = Can be temporary or permanent | |||
| causes = Damage to the [[right hemisphere]] of the [[brain]], particularly the [[parietal lobe]] | |||
| risks = [[Stroke]], [[traumatic brain injury]] | |||
| diagnosis = [[Neuropsychological tests]], [[brain imaging]] | |||
| differential = [[Visual field defect]], [[hemianopia]] | |||
| treatment = [[Occupational therapy]], [[physical therapy]], [[cognitive rehabilitation]] | |||
| prognosis = Varies; some recovery possible with therapy | |||
| frequency = Common in patients with right hemisphere [[stroke]] | |||
}} | |||
= Hemispatial Neglect = | = Hemispatial Neglect = | ||
== Introduction == | == Introduction == | ||
'''Hemispatial Neglect''' is a neuropsychological condition characterized by a deficit in attention to and awareness of one side of the field of vision. This condition arises following damage to one hemisphere of the brain, leading to an inability to process and perceive stimuli on one side of the body or environment, which is not due to a lack of sensation. | '''Hemispatial Neglect''' is a neuropsychological condition characterized by a deficit in attention to and awareness of one side of the field of vision. This condition arises following damage to one hemisphere of the brain, leading to an inability to process and perceive stimuli on one side of the body or environment, which is not due to a lack of sensation. | ||
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== Causes and Pathophysiology == | == Causes and Pathophysiology == | ||
Hemispatial neglect typically occurs due to brain damage, most commonly from a stroke. It affects the brain's attention networks, leading to a decreased awareness of space on one side of the body or environment. | Hemispatial neglect typically occurs due to brain damage, most commonly from a stroke. It affects the brain's attention networks, leading to a decreased awareness of space on one side of the body or environment. | ||
== Symptoms == | == Symptoms == | ||
Symptoms of hemispatial neglect may include: | Symptoms of hemispatial neglect may include: | ||
* Failure to acknowledge objects or stimuli on one side of the body. | * Failure to acknowledge objects or stimuli on one side of the body. | ||
* Difficulty navigating or bumping into objects on the affected side. | * Difficulty navigating or bumping into objects on the affected side. | ||
* In severe cases, complete neglect of one side of the body or space. | * In severe cases, complete neglect of one side of the body or space. | ||
== Types of Neglect == | == Types of Neglect == | ||
Hemispatial neglect is most often contralateral to the damaged hemisphere (opposite side). However, ipsilesional neglect (on the same side as the lesion) has also been reported. | Hemispatial neglect is most often contralateral to the damaged hemisphere (opposite side). However, ipsilesional neglect (on the same side as the lesion) has also been reported. | ||
== Diagnosis == | == Diagnosis == | ||
Diagnosis involves clinical observation, neuropsychological assessments, and brain imaging techniques like MRI or CT scans to identify the damaged brain areas. | Diagnosis involves clinical observation, neuropsychological assessments, and brain imaging techniques like MRI or CT scans to identify the damaged brain areas. | ||
== Treatment and Rehabilitation == | == Treatment and Rehabilitation == | ||
Treatment strategies include: | Treatment strategies include: | ||
* Physical and occupational therapy to improve awareness of the neglected space. | * Physical and occupational therapy to improve awareness of the neglected space. | ||
* Cognitive rehabilitation and exercises. | * Cognitive rehabilitation and exercises. | ||
* Use of visual cues and prompts. | * Use of visual cues and prompts. | ||
* In some cases, medication may be prescribed to improve attention. | * In some cases, medication may be prescribed to improve attention. | ||
== Prognosis == | == Prognosis == | ||
The prognosis for hemispatial neglect varies, with some patients experiencing significant improvement while others may have persistent symptoms. | The prognosis for hemispatial neglect varies, with some patients experiencing significant improvement while others may have persistent symptoms. | ||
== Impact on Quality of Life == | == Impact on Quality of Life == | ||
This condition can significantly impact the quality of life, affecting daily activities, mobility, and independence. | This condition can significantly impact the quality of life, affecting daily activities, mobility, and independence. | ||
== Research and Advances == | == Research and Advances == | ||
Ongoing research is focused on understanding the underlying mechanisms of hemispatial neglect and developing more effective treatment approaches. | Ongoing research is focused on understanding the underlying mechanisms of hemispatial neglect and developing more effective treatment approaches. | ||
== See Also == | == See Also == | ||
* [[Stroke]] | * [[Stroke]] | ||
* [[Neuropsychology]] | * [[Neuropsychology]] | ||
* [[Visual perception]] | * [[Visual perception]] | ||
== References == | == References == | ||
<references> | <references> | ||
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* {{cite web |url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3204492/ |title=Understanding Hemispatial Neglect |publisher=National Center for Biotechnology Information}} | * {{cite web |url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3204492/ |title=Understanding Hemispatial Neglect |publisher=National Center for Biotechnology Information}} | ||
</references> | </references> | ||
== External Links == | == External Links == | ||
* [https://www.stroke.org/en/about-stroke/effects-of-stroke/cognitive-and-communication-effects-of-stroke/neglect American Stroke Association - Neglect] | * [https://www.stroke.org/en/about-stroke/effects-of-stroke/cognitive-and-communication-effects-of-stroke/neglect American Stroke Association - Neglect] | ||
* [https://www.brainline.org/article/understanding-hemispatial-neglect BrainLine - Understanding Hemispatial Neglect] | * [https://www.brainline.org/article/understanding-hemispatial-neglect BrainLine - Understanding Hemispatial Neglect] | ||
[[Category:Neurological disorders]] | [[Category:Neurological disorders]] | ||
[[Category:Visual perception]] | [[Category:Visual perception]] | ||
{{stub}} | {{stub}} | ||
Revision as of 04:15, 7 April 2025
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD medical weight loss NYC and sleep center NYC
| Hemispatial neglect | |
|---|---|
 | |
| Synonyms | Unilateral neglect, spatial neglect, hemiagnosia |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Inability to attend to stimuli on one side of the body or environment |
| Complications | N/A |
| Onset | Sudden, often following a stroke or brain injury |
| Duration | Can be temporary or permanent |
| Types | N/A |
| Causes | Damage to the right hemisphere of the brain, particularly the parietal lobe |
| Risks | Stroke, traumatic brain injury |
| Diagnosis | Neuropsychological tests, brain imaging |
| Differential diagnosis | Visual field defect, hemianopia |
| Prevention | N/A |
| Treatment | Occupational therapy, physical therapy, cognitive rehabilitation |
| Medication | N/A |
| Prognosis | Varies; some recovery possible with therapy |
| Frequency | Common in patients with right hemisphere stroke |
| Deaths | N/A |
Hemispatial Neglect
Introduction
Hemispatial Neglect is a neuropsychological condition characterized by a deficit in attention to and awareness of one side of the field of vision. This condition arises following damage to one hemisphere of the brain, leading to an inability to process and perceive stimuli on one side of the body or environment, which is not due to a lack of sensation.
Causes and Pathophysiology
Hemispatial neglect typically occurs due to brain damage, most commonly from a stroke. It affects the brain's attention networks, leading to a decreased awareness of space on one side of the body or environment.
Symptoms
Symptoms of hemispatial neglect may include:
- Failure to acknowledge objects or stimuli on one side of the body.
- Difficulty navigating or bumping into objects on the affected side.
- In severe cases, complete neglect of one side of the body or space.
Types of Neglect
Hemispatial neglect is most often contralateral to the damaged hemisphere (opposite side). However, ipsilesional neglect (on the same side as the lesion) has also been reported.
Diagnosis
Diagnosis involves clinical observation, neuropsychological assessments, and brain imaging techniques like MRI or CT scans to identify the damaged brain areas.
Treatment and Rehabilitation
Treatment strategies include:
- Physical and occupational therapy to improve awareness of the neglected space.
- Cognitive rehabilitation and exercises.
- Use of visual cues and prompts.
- In some cases, medication may be prescribed to improve attention.
Prognosis
The prognosis for hemispatial neglect varies, with some patients experiencing significant improvement while others may have persistent symptoms.
Impact on Quality of Life
This condition can significantly impact the quality of life, affecting daily activities, mobility, and independence.
Research and Advances
Ongoing research is focused on understanding the underlying mechanisms of hemispatial neglect and developing more effective treatment approaches.
See Also
References
<references>
- ,
Hemispatial Neglect: Clinical Features, Diagnosis, and Treatment, Neuropsychology Review, 2020,
Understanding Hemispatial Neglect(link). {{{website}}}. National Center for Biotechnology Information.
</references>
