ASSOCIATION STRUCTURES OF MENTAL RETARDATES.

Area of Science:

• Psycholinguistics
• Cognitive Psychology
• Developmental Psychology

Background:

• Word association structures, or idiodynamic associative sets, are crucial for understanding cognitive processing in adults.
• Previous research has primarily focused on word association patterns in neurotypical populations.

Purpose of the Study:

• To investigate the presence of normal adult word association structures in individuals with intellectual disabilities.
• To compare the semantic and syntactic features of word associations between low-level and higher-level intellectual disability groups.

Main Methods:

• Free word association tasks were administered to two groups of individuals with intellectual disabilities: low-level (IQ 48) and higher-level (IQ 67).
• Factor analysis was used to examine the underlying structure of the word associations.
• Semantic and syntactic analyses were conducted to compare association patterns between the groups.

Main Results:

• Both low-level and higher-level intellectual disability groups demonstrated evidence of idiodynamic associative sets.
• The low-level group exhibited a factor structure that differed from typical adult patterns.
• Semantically, the low-level group's associations were more concrete than those of the higher-level group.
• Syntactically, the lower-level group showed a significant lag in the syntactic-paradigmatic shift.

Conclusions:

• Individuals with intellectual disabilities possess word association structures, though they may differ from neurotypical adults.
• Cognitive and linguistic development in intellectual disability is characterized by differences in semantic concreteness and syntactic flexibility.
• These findings highlight the heterogeneity in cognitive and linguistic processing within the intellectual disability spectrum.