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The effect of acute alcohol consumption on meal memory and subsequent food intake: Two laboratory experiments

Gough, T, Christiansen, P, Rose, AK and Hardman, CA (2021) The effect of acute alcohol consumption on meal memory and subsequent food intake: Two laboratory experiments. Appetite, 163. ISSN 0195-6663

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Altering the quality of episodic meal memories has been shown to affect subsequent food intake. Acute alcohol consumption disrupts memory formation and produces short-term overeating. In two studies, we investigated whether alcohol consumption can affect meal-related memories and later food intake. Study 1 (N = 60, 50% male) investigated how consumption of an alcoholic drink (0.5 g/kg) prior to consumption of a lunch meal affected meal memory of that lunch, and later food intake, compared with a placebo-alcohol. Findings revealed that alcohol consumption did not impair meal memory, and did not affect subsequent food intake. Study 2 (N = 72, 50% male) investigated whether, due to alcohol's retrograde facilitation effect (the enhancement of recall due to reduced interference at the point of exposure) consuming alcohol after consumption of a lunch meal could enhance meal memory, compared with when consumed before a lunch meal (both a dosage of 0.6 g/kg), and compared with consumption of a soft drink. Contrary to prediction, alcohol consumed after a lunch meal did not significantly increase meal memory. But, certain types of meal memory were impaired when alcohol was consumed before the meal, compared with consumption of a soft drink. Subsequent food intake did not differ between conditions. Taken together, findings suggest that alcohol intoxication can impair some forms of meal memory recall, likely due to disruption of memory formation during the encoding phase. However, there was no evidence that this impairment contributes towards alcohol-induced overeating.

Item Type: Article
Uncontrolled Keywords: Science & Technology; Life Sciences & Biomedicine; Behavioral Sciences; Nutrition & Dietetics; Alcohol; Episodic memory; Appetite; Food intake; APPETITE; LUNCH; METABOLISM; DECREASES; INCREASES; BEHAVIOR; SATIETY; ETHANOL; RECALL; Humans; Alcohol Drinking; Mental Recall; Energy Intake; Eating; Laboratories; Female; Male; Meals; Lunch; Alcohol; Appetite; Episodic memory; Food intake; Alcohol Drinking; Eating; Energy Intake; Female; Humans; Laboratories; Lunch; Male; Meals; Mental Recall; Nutrition & Dietetics
Subjects: B Philosophy. Psychology. Religion > BF Psychology
T Technology > TX Home economics > TX341 Nutrition. Foods and food supply
Divisions: Psychology (from Sep 2019)
Publisher: Elsevier
SWORD Depositor: A Symplectic
Date Deposited: 17 Aug 2022 11:04
Last Modified: 17 Aug 2022 11:15
DOI or ID number: 10.1016/j.appet.2021.105225
URI: https://researchonline.ljmu.ac.uk/id/eprint/17413
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