Illustrating where spatial perception versus memory-based representation: spatial neglect in a distinguished artist;...

Area of Science:

• Neuroscience
• Cognitive Psychology
• Clinical Neurology

Background:

• Spatial neglect is a complex attention disorder affecting contralesional space processing.
• Its heterogeneous nature suggests diverse underlying neuroanatomical mechanisms.
• Existing assessments may not capture subtle differences between active perception and spatial memory encoding.

Observation:

• A case study of an artist with selective contralesional spatial neglect is presented.
• The artist exhibited impaired active spatial perception ('Where' task).
• Notably, drawing from memory showed preserved spatial abilities.

Findings:

• This case illustrates that spatial neglect can manifest selectively during active perception versus memory recall.
• Neural substrates for active spatial perception may differ from those for spatial memory.
• Conventional assessments might overlook such specific deficits.

Implications:

• Highlights the critical need for comprehensive and varied testing in diagnosing spatial neglect.
• Suggests that distinct neural circuits support active perception and spatial memory.
• Encourages further research into the nuanced presentations of attention disorders.