Over- and underestimation of motor ability after a stroke: Implications for anosognosia

Elizabeth A. Fowler*, Sergio Della Sala, Simon R. Hart, Robert D. McIntosh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We administered a discrepancy-based measure of anosognosia for hemiplegia (AHP) to a group of 42 right-brain-damaged (RBD) and left-brain-damaged (LBD) stroke patients with varying levels of functional motor ability. In addition to the expected (anosognosic) pattern of overestimation of motor function in some RBD patients, we found an equal and opposite underestimation in some others, both RBD and LBD. We also found that around a quarter of self-estimation error could be predicted directly from actual ability, such that patients with poorer motor function tended to overestimate, and vice versa. This pattern suggests that some misestimation is attributable simply to statistical regression. However, even after adjusting for this regression effect, levels of overestimation were significantly greater in RBD patients, while LBD patients were more likely to underestimate their motor ability.
Original languageEnglish
Pages (from-to)191-196
Number of pages6
JournalNeuropsychologia
Volume119
Early online date9 Aug 2018
DOIs
Publication statusPublished - Oct 2018

Keywords

  • anosognosia
  • hemiplegia
  • insight
  • metacognition
  • self-estimation
  • stroke

Fingerprint Dive into the research topics of 'Over- and underestimation of motor ability after a stroke: Implications for anosognosia'. Together they form a unique fingerprint.

Cite this