environmental agnosia
Pronunciation: en-vi-ron-MEN-tal ag-NO-zee-ah
Inability to recognize familiar environments despite intact vision and basic object recognition.
Full Definition
Environmental agnosia is a specific form of visual agnosia characterized by the inability to recognize familiar environments and landmarks while maintaining normal basic visual perception and object recognition abilities. Patients can see and identify individual objects but cannot recognize the spatial configuration and meaning of familiar places such as their home, neighborhood, or workplace. This condition typically results from bilateral occipital-temporal or right hemisphere posterior lesions affecting the parahippocampal place area and associated networks. Environmental agnosia severely impacts navigation and spatial orientation, often leading to getting lost in previously familiar locations. The condition may occur with or without concurrent topographical disorientation.
Usage
Usage note: Assess navigation abilities separately from basic visual processing to confirm diagnosis.
In Context
- "Environmental agnosia prevented recognition of the patient's own neighborhood after 30 years of residence." — Spatial cognition assessment
- "Right occipital stroke resulted in environmental agnosia with preserved object recognition." — Visual processing evaluation