The effect of glucose administration and the emotional content of words on heart rate and memory.
The effects of glucose administration and emotionality of target material on heart rate and memory were examined in a double-blind, placebo-controlled, balanced crossover study. Memory for neutral and emotional words was tested in 20 young adults following a glucose drink and a placebo. Heart rate and blood glucose were also measured. Emotional words were recalled and recognized better than neutral words in both drink conditions but there was no direct effect of drink type on memory. During the neutral word memory tasks, similar heart rate deceleration was observed in both drink conditions. However, during the processing of emotional material, heart rates were lowered in the placebo condition and relatively increased in the glucose condition. These results further differentiate the physiological responses involved during memory for affective and neutral material.
Ford
Claire E
CE
Human Cognitive Neuroscience Unit, University of Northumbria, Newcastle upon Tyne, UK.
Scholey
Andrew B
AB
Ayre
Gareth
G
Wesnes
Keith
K
D000328:Adult; D001143:Arousal / Q000187:drug effects* / Q000502:physiology; D001288:Attention / Q000187:drug effects* / Q000502:physiology; D001786:Blood Glucose / Q000378:metabolism; D001794:Blood Pressure / Q000187:drug effects / Q000502:physiology; D018592:Cross-Over Studies; D004311:Double-Blind Method; D004644:Emotions / Q000502:physiology; D004837:Epinephrine / Q000502:physiology; D005260:Female; D005950:Glucose Solution, Hypertonic / Q000494:pharmacology*; D006339:Heart Rate / Q000187:drug effects* / Q000502:physiology; D006801:Humans; D008297:Male; D011939:Mental Recall / Q000187:drug effects* / Q000502:physiology; D014706:Verbal Learning / Q000187:drug effects* / Q000502:physiology
D001786:Blood Glucose; D005950:Glucose Solution, Hypertonic; D004837:Epinephrine