Validity of the Behavioral Inattention Test (BIT): relationships with functional tasks

Area of Science:

• Neuroscience
• Occupational Therapy
• Clinical Psychology

Background:

• Unilateral visual neglect is a common consequence of right cerebrovascular accident (CVA).
• The Behavioral Inattention Test (BIT) is a tool used to assess visual neglect.
• The validation of the BIT's behavioral subtests requires further investigation.

Purpose of the Study:

• To validate the behavioral subtests of the Behavioral Inattention Test (BIT).
• To assess the functional utility of the BIT behavioral subtests in identifying unilateral visual neglect.

Main Methods:

• Forty Israeli subjects with right CVA were recruited from hospital and day center settings.
• Participants were evaluated using the BIT, performance tasks, and an activities of daily living (ADL) checklist.
• Statistical analyses were performed to compare neglect and non-neglect groups and correlate BIT subtests with other measures.

Main Results:

• Seven out of nine BIT behavioral subtests significantly differentiated between individuals with and without visual neglect.
• Six of the nine subtests demonstrated significant correlations with parallel performance tasks or ADL checklist items.
• These findings indicate the functional relevance of the BIT behavioral subtests.

Conclusions:

• The BIT behavioral subtests possess strong construct and predictive validity as functional measures of unilateral neglect.
• The BIT is recommended for occupational therapists to assess unilateral visual neglect.
• A relative scoring system for right and left omissions within the BIT is suggested for enhanced clinical utility.