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Learning Disabilities

Learning Disabilities

Learning disabilities are cognitive disorders caused by neurological impairments that affect cognitive functions like language and reading, without indicating overall intellectual or developmental challenges. These disabilities differ from global intellectual or developmental disabilities as they are limited to distinct cognitive functions. Common learning disabilities include dysgraphia, dyslexia, and dyscalculia, each of which impacts unique aspects of learning.
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Digital Handwriting Analysis of Characters in Chinese Patients with Mild Cognitive Impairment

Digital Handwriting Analysis of Characters in Chinese Patients with Mild Cognitive Impairment

Published on: March 11, 2021

Micrographia, much beyond the writer's hand.

Rivka Inzelberg¹, Meir Plotnik², Naama Kadmon Harpaz³

¹Department of Neurology and Neurosurgery, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Tel Hashomer, Israel; Department of Applied Mathematics and Computer Science, The Weizmann Institute of Science, Rehovot, Israel.

Parkinsonism & Related Disorders

|March 22, 2016

Summary

This summary is machine-generated.

Micrographia, or small handwriting, is not exclusive to Parkinson's disease and can indicate other neurodegenerative disorders or basal ganglia lesions. Understanding its varied causes is crucial for accurate diagnosis.

Keywords:

Handwriting Micrographia Parkinson's disease Scaling

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Area of Science:

Neurology
Neuroscience
Movement Disorders

Background:

Micrographia (small handwriting) is commonly associated with Parkinson's disease.
However, it can also manifest in other neurodegenerative conditions and focal basal ganglia lesions.

Purpose of the Study:

To highlight non-Parkinsonian causes of micrographia.
To provide diagnostic clues for differential diagnosis.
To review the phenomenology, etiology, and mechanisms of micrographia.

Main Methods:

A systematic literature review was conducted.

Main Results:

Micrographia can precede motor symptoms in neurodegenerative diseases.
It may occur with basal ganglia lesions without parkinsonism.
Levodopa offers only partial improvement in some cases, questioning a purely dopaminergic cause.

Conclusions:

Basal ganglia dysfunction, whether from neurodegeneration or focal damage, underlies micrographia.
Clinicians should consider imaging for basal ganglia lesions in patients with micrographia and no parkinsonian signs.