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Long-Term Memory - Distinctions Episodic Memory Semantic Memory. The role of the hippocampus and temporal lobes in memory (McClelland et al., 1995) Hippocampus – recently acquired information Temporal lobes - condensed versions are stored.
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Long-Term Memory - Distinctions Episodic Memory Semantic Memory
The role of the hippocampus and temporal lobes in memory (McClelland et al., 1995) Hippocampus – recently acquired information Temporal lobes - condensed versions are stored
The role of the hippocampus and temporal lobes in memory (McClelland et al., 1995) Hippocampus – recently acquired information Temporal lobes - condensed versions are stored
The Role of the Hippocampus – H.M. H.M. Healthy Control
The Role of the Temporal Lobes – Semantic Dementia
Semantic Dementia (SD) Selective deficit to semantic memory that is associated with temporal lobe atrophy temporal lobe atrophy SD 1 Healthy Control SD 1 Control
SD Individuals do Poorly on SEMANTIC TESTS Category Fluency Name as many animals as you can dog cat horse etc.
SD Individuals do Poorly on SEMANTIC TESTS Category Fluency Name as many animals as you can dog cat horse etc.
SD Individuals do Poorly on SEMANTIC TESTS Category Fluency Picture Naming
SD Individuals do Poorly on SEMANTIC TESTS Category Fluency Picture Naming healthy DAT SD
SD Individuals do relatively well on VISUOSPATIAL TESTS
SD Individuals do relatively well on VISUOSPATIAL TESTS
Individuals w/ SD do relatively well on VISUOSPATIAL TESTS
SD Individuals do relatively well on NONVERBAL PROBLEM SOLVING TASKS
Relating SD to language Empty and meaningless speech can opener - thing giraffe - animal
Relating SD to language Empty and meaningless speech can opener - thing giraffe - animal Surface Dyslexia plaid – “played” yacht – “yatched”
Relating SD to language Empty and meaningless speech can opener - thing giraffe - animal Surface Dyslexia plaid – “played” yacht – “yatched” Surface Dysgraphia /plæd/ - plad
Relating SD to language Empty and meaningless speech can opener - thing giraffe - animal Surface Dyslexia plaid – “played” yacht – “yatched” Surface Dysgraphia /plæd/ - plad Past Tense Verb Problems ring – “ringed” weave – “weaved”
Associative Agnosia – impairment in assigning identity to a visually perceived object
Associative Agnosia – impairment in assigning identity to a visually perceived object
The Neuropsychology of Visual Pattern Recognition – Agnosia Associative Agnosia – impairment in assigning identity to a visually perceived object • Ratcliff & Newcombe (1982) • could copy anchor • could define anchor • could not ID anchor • could not draw from memory
The Neuropsychology of Visual Pattern Recognition – Agnosia Associative Agnosia – impairment in assigning identity to a visually perceived object • Ratcliff & Newcombe (1982) • could copy anchor • could define anchor • could not ID anchor • could not draw from memory
Semantic Dementia (SD) • How would you classify SD? • Establish poor performance on semantic measures • - e.g., category fluency, picture naming • 2. Establish relatively normal performance on • nonsemantic measures • - e.g., visual spatial, nonverbal problem solving • 3. Use MRI to establish temporal lobe atrophy SD 1 Control
Long-Term Memory - Distinctions A.M.'s Performance on a First-Name/Last-Name Matching Task (adapted from Graham et al., 1997) First Name Last Name Brigette Brown Jeff Casas Joe Ryan Carey Ryalls Lisa French Roni Scherer Juan Reiter-Palmon
Long-Term Memory - Distinctions A.M.'s Performance on a First-Name/Last-Name Matching Task (adapted from Graham et al., 1997) First Name Last Name Brigette Brown Jeff Casas Joe Ryan Carey Ryalls Lisa French Roni Scherer Juan Reiter-Palmon
Long-Term Memory - Distinctions A.M.'s Performance on a First-Name/Last-Name Matching Task (adapted from Graham et al., 1997)
Long-Term Memory - Distinctions A.M.'s Performance on a First-Name/Last-Name Matching Task (adapted from Graham et al., 1997)
differentiating SD from DAT from Gold et al. (2005)
from Graham and Hodges 1997 RH LH AD SD