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Mental rotation may underlie apparent object-based neglect

L J Buxbaum¹, H B Coslett, M W Montgomery

¹Moss Rehabilitation Research Institute, Philadelphia, Pennsylvania, USA.

Neuropsychologia

|February 1, 1996

Summary

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Object-based neglect may stem from mental rotation strategies. Patient neglect patterns shifted based on task instructions, suggesting a link between mental rotation and spatial reference frames in attention.

Area of Science:

Cognitive Neuroscience
Neuropsychology

Background:

Object-based neglect is theorized to involve attentional allocation relative to an object's intrinsic axes.
Understanding the reference frames underlying neglect is crucial for diagnosing and treating attentional disorders.

Observation:

A patient exhibited apparent "object-based" neglect with 90-degree rotated stimuli.
Neglect patterns varied based on whether the patient was instructed to mentally rotate stimuli to an upright position or refrain from doing so.

Findings:

When mental rotation was employed, neglect occurred to the left of the stimuli's principal axes.
Without mental rotation, neglect was viewer-centered (patient's left) rather than object-centered.

Implications:

Related Experiment Videos

Apparent object-based neglect may arise from mental rotation processes aligning object-centered and viewer/environment-centered reference frames.

This suggests a dynamic interaction between spatial reference frames in attentional processing and neglect phenomena.