Awareness in classical differential eyeblink conditioning in young and aging humans

Knuttinen, M. G., Power, J. M., Preston, A. R. and Disterhoft, J. F. (2001) Awareness in classical differential eyeblink conditioning in young and aging humans. Behavioral Neuroscience, 115 4: 747-757. doi:10.1037//0735-7044.115.4.747


Author Knuttinen, M. G.
Power, J. M.
Preston, A. R.
Disterhoft, J. F.
Title Awareness in classical differential eyeblink conditioning in young and aging humans
Journal name Behavioral Neuroscience   Check publisher's open access policy
ISSN 0735-7044
Publication date 2001
Sub-type Article (original research)
DOI 10.1037//0735-7044.115.4.747
Volume 115
Issue 4
Start page 747
End page 757
Total pages 11
Place of publication Washington
Publisher Amer Psychological Assoc
Language eng
Abstract The role of awareness and its impact on learning the conditioned eyeblink response was investigated in both trace and delay discrimination eyeblink conditioning in young and aging participants, in 4 paradigms: delay 750, delay 1250, trace 500, and trace 1000. Participants concurrently watched a silent movie about which they were questioned afterward. Acquisition in both the trace and delay discrimination task was correlated with awareness of conditioning stimulus contingencies, regardless of age. Age-dependent deficits were observed in trace discrimination but not in delay discrimination. with more severe deficits appearing at the longer trace interval. The percentage of aware participants was also found to be greater in the young population than in the aging population. These results indicate that awareness or knowledge of stimulus contingencies may be an important contributor to successful acquisition in higher order discrimination tasks.
Keyword Behavioral Sciences
Neurosciences
Nictitating-membrane Response
Hippocampectomy Disrupts
Eyelid Response
Interstimulus-interval
Quantitative-analysis
Neuronal Responses
Trace
Rabbits
Acquisition
Lesions
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Brain Institute Publications
 
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Created: Fri, 25 Jan 2008, 15:27:46 EST