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Abstract:
Abstract: Previous research has found that patients with
probable Alzheimer's disease (AD) show lower levels of false
recognition of semantic associates than do healthy elderly adults.
To investigate whether this finding is attributable to semantic
impairments in AD patients, the authors examined false recognition
of perceptually related novel objects with little semantic content
in AD patients and elderly adults. Using corrected recognition
scores to control for unrelated false alarms, it was found that AD
patients showed lower levels of both true and false recognition of
novel objects than did elderly adults. These results suggest that
the previous difference in false recognition of semantic associates
observed between AD patients and elderly adults is not entirely
attributable to AD patients' semantic memory deficits, but also
involves poorly developed gist information of the AD
patients.
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