Please use this identifier to cite or link to this item: http://hdl.handle.net/11667/184
Appears in Collections:University of Stirling Research Data
Title: ERP and Microstates of memory: Frequent alcohol-induced blackouts do not change behavioural performance but alter sober neural functioning
Creator(s): Jackson, Judith
Contact Email: judith.jackson1@stir.ac.uk
Keywords: Alcohol-induced memory blackouts
episodic memory
binge-drinking
recognition memory
event related potentials
microstate segmentation
Citation: Jackson, J (2022): ERP and Microstates of memory: Frequent alcohol-induced blackouts do not change behavioural performance but alter sober neural functioning. University of Stirling, Faculty of Natural Sciences, Psychology Division. Dataset. http://hdl.handle.net/11667/184
Publisher: University of Stirling, Faculty of Natural Sciences, Psychology Division
Dataset Description (Abstract): It is widely accepted that excessive alcohol consumption has detrimental long-term effects on health and cognitive functioning. One notable but rarely studied phenomena is the experience of an alcohol-induced memory blackout (MBO), a short-term amnesic episode resulting from extreme binge-drinking. It is currently unknown whether the frequency of MBOs experienced in the past imparts any lasting changes in either cognition or at the neural level. Given that MBOs cause immediate impairments in memory, we reasoned that memory may also be affected in the long-term. To test this hypothesis, we examined neural activity associated with memory retrieval in (sober) participants who reported frequent alcohol-induced MBOs (9 or more in the past 12 months; n=20), and control participants (n=21) who have never experienced an MBO. Memory was assessed using word recognition (discriminating old from new stimuli) with a secondary source judgement (remembering colour information), a task that both MBO and control participants could easily perform. Neural activity was measured by recording electroencephalography (EEG) during the memory test, allowing the processes associated with memory retrieval to be characterised. The EEG data was examined using Event-Related Potentials (ERPs) and microstate segmentation, revealing clear differences in retrieval processing between MBO participants and controls. Critically, the neural data revealed that control and blackout participants employed different retrieval strategies to achieve similar levels of memory performance. The present findings provide evidence that repeated alcohol-induced MBOs are associated with altered cognitive functioning, highlighting the need for longitudinal studies examining the compound effects of MBOs and their impact on health, behaviour and quality of life.
Dataset Description (TOC): The Dataset incorporates all behavioural data, Grand Averaged ERP data, statistics, and Microstate Segmentation analysis applied to the recognition and source memory study reported in 'ERP and Microstates of memory: Frequent alcohol-induced blackouts do not change behavioural performance but alter sober neural functioning'. For more details, please access the 'Read Me' text file within the data.
Type: dataset
Funder(s): University of Stirling
URI: http://hdl.handle.net/11667/184
Rights: Rights covered by the standard CC-BY 4.0 licence: https://creativecommons.org/licenses/by/4.0/
Affiliation(s) of Dataset Creator(s): University of Stirling (Psychology)

Files in This Item:
File Description SizeFormat 
Read_Me.txt5.66 kBTextUnder Embargo until 1/2/2022     Request a copy
Behavioural_Data.xlsx15.59 kBMicrosoft Excel XMLUnder Embargo until 1/2/2022     Request a copy
ERP_MidFrontal_400-600ms.xlsx913.82 kBMicrosoft Excel XMLUnder Embargo until 1/2/2022     Request a copy
ERP_Parietal_500-700ms.xlsx889.73 kBMicrosoft Excel XMLUnder Embargo until 1/2/2022     Request a copy
ERP_MidFrontal_300-500ms.xlsx884.77 kBMicrosoft Excel XMLUnder Embargo until 1/2/2022     Request a copy
ERP_Parietal_500-800ms.xlsx890.27 kBMicrosoft Excel XMLUnder Embargo until 1/2/2022     Request a copy
Microstate Segmentation.xlsx255.54 kBMicrosoft Excel XMLUnder Embargo until 1/2/2022     Request a copy
CR_C.avg568.14 kBUnknownUnder Embargo until 1/2/2022     Request a copy
CR_MBO.avg568.14 kBUnknownUnder Embargo until 1/2/2022     Request a copy
HH_C.avg568.14 kBUnknownUnder Embargo until 1/2/2022     Request a copy
HH_MBO.avg568.14 kBUnknownUnder Embargo until 1/2/2022     Request a copy
HM_C.avg568.14 kBUnknownUnder Embargo until 1/2/2022     Request a copy
HM_MBO.avg568.14 kBUnknownUnder Embargo until 1/2/2022     Request a copy

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