Hierarchical retrieval schemes in recall of categorized word lists

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Journal of Experimental Psychology-learning Memory and Cognition

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Journal of Autism and Developmental Disorders

The Task Support Hypothesis (TSH, Bowler et al. Neuropsychologia 35:65–70 1997) states that individuals with autism spectrum disorder (ASD) show better memory when test procedures provide support for retrieval. The present study aimed to see whether this principle also applied at encoding. Twenty participants with high-functioning ASD and 20 matched comparison participants studied arrays of 112 words over four trials. Words were arranged either under hierarchically embedded category headings (e.g. Instruments—String—Plucked—Violin) or randomly. Both groups showed similar overall recall and better recall for the hierarchically organised words. However, the ASD participants made less use of information about relations between words and more use of item-specific information in their recall, confirming earlier reports of relational difficulties in this population.

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. letters that rarely follow one another in written English (eg, M,K). If . 1983; Ornstein Naus, 1985; Ornstein, BakerWard, Naus, in press; see also Rabinowitz Chi, in press . or schematic organization to taxonomie cate gory organization (eg, Denney, 1974; Mandler, 1983; Nelson, 1983 .

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Journal of experimental psychology. General

The experiments address the degree to which retrieval fluency--the case with which information is accessed from long-term memory--guides and occasionally misleads metamnemonic judgments. In each of 3 experiments, participants' predictions of their own future recall performance were examined under conditions in which probability or speed of retrieval at one time or on one task is known to be negatively related to retrieval probability on a later task. Participants' predictions reflected retrieval fluency on the initial task in each case, which led to striking mismatches between their predicted and actual performance on the later tasks. The results suggest that retrieval fluency is a potent but not necessarily reliable source of information for metacognitive judgments. Aspects of the results suggest that a basis on which better and poorer rememberers differ is the degree to which certain memory dynamics are understood, such as the fleeting nature of recency effects and the con.

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