ERIC Number: EJ1172020
Record Type: Journal
Publication Date: 2018-Feb
Abstractor: As Provided
Molecular Correlates of Separate Components of Training That Contribute to Long-Term Memory Formation after Learning That Food Is Inedible in "Aplysia"
Briskin-Luchinsky, Valeria; Levy, Roi; Halfon, Maayan; Susswein, Abraham J.
Learning & Memory, v25 n2 p90-99 Feb 2018
Training "Aplysia" with inedible food for a period that is too brief to produce long-term memory becomes effective in producing memory when training is paired with a nitric oxide (NO) donor. Lip stimulation for the same period of time paired with an NO donor is ineffective. Using qPCR, we examined molecular correlates of brief training versus lip stimulation, of treatment with an NO donor versus saline, and of the combined stimuli producing long-term memory. Changes were examined in mRNA expression of "Aplysia" homologs of "C/EBP," "CREB1," "CREB1a," "CREB1ß," and "CREB2," in both the buccal and cerebral ganglia controlling feeding. Both the brief training and the NO donor increased expression of "C/EBP," "CREB1," "CREB1a," and "CREB1ß," but not "CREB2" in the buccal ganglia. For "CREB1a," there was a significant interaction between the effects of the brief training and of the NO donor. In addition, the NO donor, but not brief training, increased expression of all of the genes in the cerebral ganglion. These findings show that the components of learning that alone do not produce memory produce molecular changes in different ganglia. Thus, long-term memory is likely to arise by both additive and interactive increases in gene expression.
Descriptors: Animals, Training, Food, Long Term Memory, Stimulation, Correlation, Brain Hemisphere Functions, Genetics, Molecular Structure
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A
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