Related Experiment Videos
Memory for spatial location in retarded and nonretarded persons
Journal of Mental Deficiency Research
|June 1, 1991
Summary
Intellectual disability impacts memory differently. While mild intellectual disability affects item recall, moderate intellectual disability impairs both item and spatial location memory.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Developmental Psychology
Background:
- Memory is crucial for daily functioning and is often impaired in individuals with intellectual disabilities.
- Distinguishing between item memory (effortful processing) and location memory (automatic processing) is key to understanding cognitive deficits.
Purpose of the Study:
- To investigate item memory and spatial location memory in individuals with varying intellectual abilities.
- To examine the influence of encoding instructions and time on memory recall in college students and individuals with mild and moderate intellectual disabilities.
Main Methods:
- Participants (college students, mildly, and moderately intellectually disabled individuals) were given semantic or nonsemantic encoding tasks.
- Picture recall and unexpected relocation tests were administered immediately and 24 hours after encoding.
Main Results:
- Mildly intellectually disabled individuals showed deficits in item memory but not location memory.
- Moderately intellectually disabled individuals exhibited deficits in both item and location memory.
- Location memory was sensitive to encoding instructions and long-term forgetting but less affected by intelligence differences compared to item memory.
Conclusions:
- Intellectual disability differentially affects item and location memory, with more severe impairments seen in moderate intellectual disability.
- Location memory appears to rely more on automatic processing, making it less susceptible to intellectual deficits but more prone to forgetting over time.