ERIC Number: EJ768008
Record Type: Journal
Publication Date: 2006
Pages: 6
Abstractor: Author
ISBN: N/A
ISSN: ISSN-1072-0502
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Available Date: N/A
Single-Item Memory, Associative Memory, and the Human Hippocampus
Squire, Larry R.; Gold, Jeffrey J.; Hopkins, Ramona O.
Learning & Memory, v13 n5 p644-649 Sep-Oct 2006
We tested recognition memory for items and associations in memory-impaired patients with bilateral lesions thought to be limited to the hippocampal region. In Experiment 1 (Combined memory test), participants studied words and then took a memory test in which studied words, new words, studied word pairs, and recombined word pairs were presented in a mixed order. In Experiment 2 (Separated memory test), participants studied single words and then took a memory test involving studied word and new words. In a separate test, they studied word pairs and then took a memory test involving studied word pairs and recombined word pairs. In both experiments, patients were impaired at memory for single items as well as memory for associations, suggesting that the hippocampus is important for both of these memory functions. In Experiment 1, patients appeared to be more impaired at associative memory than item memory. In Experiment 2, patients were similarly impaired at associative memory and item memory. These different findings are considered, including the fact that in Experiment 1 the results depended on the fact that controls produced unexpectedly low false-alarm rates to recombined pairs. We discuss single-item and associative memory from the perspective that the hippocampus and adjacent cortex work cooperatively to signal recognition and that simple dichotomies do not adequately describe the division of labor within the medial temporal lobe.
Descriptors: Memory, Patients, Recognition (Psychology), Association (Psychology), Testing, Paired Associate Learning, Brain Hemisphere Functions
Cold Spring Harbor Laboratory Press. 500 Sunnyside Boulevard, Woodbury, NY 11797-2924. Tel: 800-843-4388; 516-367-8800; Fax: 516-422-4097; e-mail: cshpres@cshl.edu; Web site: http://www.learnmem.org/
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
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Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A