1. Types of Visual Agnosia
Inability
to access
memory
associative
agnosia
Mesial
Temporal
Subcortex
Types of Visual Agnosia
Recognition
Surrounding
Visual Cortex
Top Down
Perceptual
Processing
Inability
to integrate
Features
apperceptive
Agnosia or
simultagnosia
Occipital
Cortex
Bottom up
Perceptual
Processing
LGN of
Thalamus
Retina

2. Lexical recognition disorders
Decision stage
Motor Planning
Deep dyslexia: c,(e)
Alexia: a,c,(e)
Agraphia: d
Word deafness: b e d og
/dawg/
/d/
/ahg/ b
/dawg/
/d/
/ahg/
dog c a
dog d d og d

3. Summary
Comparison between representation of perceptual input and representations in memory
Redundant pathways increase probability of match
Response includes multiple associated representations
Priming, agnosia, and apraxia provide evidence of specific pathways and associations
Selection of context-appropriate representation occurs in working memory
Orients you to place