The impact of unilateral brain damage on weight perception, sensorimotor anticipation, and fingertip force adaptation

Gavin Buckingham, Marta Bieńkiewicz, Nina Rohrbach, Joachim Hermsdörfer

    Research output: Contribution to journalArticle

    11 Citations (Scopus)
    39 Downloads (Pure)

    Abstract

    Damage to the left parietal cortex can lead to apraxia - a selective deficit in tool use and action planning. There is conflicting evidence as to whether this disorder affects more fundamental motor parameters, such as applying the appropriate forces to lift objects based upon how heavy they look. Here we examined how individuals with left and right-lateralized brain damage lift and perceive the weight of objects of the same mass which vary in their size and material properties. No clear differences emerged between the groups in terms of how visual material properties affected their perceptions of object weight or their initial application of grip and load forces. There was, however, some evidence that unilateral brain injury impaired the use of size cues for the parameterization of grip forces.

    Original languageEnglish
    Pages (from-to)231-237
    Number of pages7
    JournalVision Research
    Volume115
    Issue numberPart B
    DOIs
    Publication statusPublished - Oct 2015

    Keywords

    • Brain damage
    • Grip force
    • Load force
    • Material weight illusion
    • Object lifting
    • Size weight illusion

    ASJC Scopus subject areas

    • Ophthalmology
    • Sensory Systems

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