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Related Experiment Video

Updated: May 20, 2026

Event-related Potentials During Target-response Tasks to Study Cognitive Processes of Upper Limb Use in Children with Unilateral Cerebral Palsy
08:26

Event-related Potentials During Target-response Tasks to Study Cognitive Processes of Upper Limb Use in Children with Unilateral Cerebral Palsy

Published on: January 11, 2016

Apraxia.

Kenneth M Heilman

    Continuum (Minneapolis, Minn.)
    |July 20, 2012
    PubMed
    Summary
    This summary is machine-generated.

    Apraxia is the loss of skilled forelimb movements essential for daily tasks. This review details five types: ideational, conceptual, ideomotor, dissociation, and limb-kinetic apraxia, aiding in diagnosis and understanding.

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    Area of Science:

    • Neuroscience
    • Neurology
    • Rehabilitation Medicine

    Background:

    • Skilled forelimb movements are crucial for human interaction and self-care.
    • Apraxia represents a loss of these purposeful, skilled actions, significantly impacting daily functioning.
    • Understanding the distinct forms of apraxia is vital for accurate diagnosis and effective intervention.

    Purpose of the Study:

    • To comprehensively review the diagnostic methods for forelimb apraxia.
    • To elucidate the underlying pathophysiology of various apraxia subtypes.
    • To delineate the clinical characteristics defining five primary forms of forelimb apraxia.

    Main Methods:

    • Literature review of studies on apraxia testing, pathophysiology, and clinical presentation.
    • Categorization of forelimb apraxia into distinct clinical subtypes based on established criteria.

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    Behavioral Assessment of Manual Dexterity in Non-Human Primates
    16:00

    Behavioral Assessment of Manual Dexterity in Non-Human Primates

    Published on: November 11, 2011

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    Last Updated: May 20, 2026

    Event-related Potentials During Target-response Tasks to Study Cognitive Processes of Upper Limb Use in Children with Unilateral Cerebral Palsy
    08:26

    Event-related Potentials During Target-response Tasks to Study Cognitive Processes of Upper Limb Use in Children with Unilateral Cerebral Palsy

    Published on: January 11, 2016

    Behavioral Assessment of Manual Dexterity in Non-Human Primates
    16:00

    Behavioral Assessment of Manual Dexterity in Non-Human Primates

    Published on: November 11, 2011

  • Synthesis of information regarding the neurological underpinnings and observable deficits for each type.

    • Main Results:

    • Identification and description of five general forms of forelimb apraxia: ideational, conceptual, ideomotor, dissociation, and limb-kinetic.
    • Detailed explanation of the specific deficits associated with each type, including sequencing errors, tool knowledge loss, spatial-motor control issues, modality-specific impairments, and dexterity reduction.
    • Overview of the diagnostic approaches and pathological bases relevant to each category.

    Conclusions:

    • Forelimb apraxia encompasses a spectrum of disorders affecting skilled motor actions.
    • Distinguishing between ideational, conceptual, ideomotor, dissociation, and limb-kinetic apraxia is key for targeted therapeutic strategies.
    • Further research into the neurobiological mechanisms of these apraxias can improve patient outcomes.