Internal consistency and test-retest reliability of the P3 event-related potential (ERP) elicited by alcoholic and non-alcoholic beverage pictures
In: Psychophysiology, Jg. 59 (2021-09-18), Heft 2
Online
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Zugriff:
Addiction researchers are increasingly interested in the ability of neural signals, like the P3 component of the ERP, to index individual differences in liability factors such as motivational reactivity to alcohol/drug cues. The reliability of these measures directly impacts their ability to index individual differences, yet little attention has been paid to their psychometric properties. The present study fills this gap by examining within-session internal consistency reliability (ICR) and between-session (8–10 month interval) test-retest reliability (TRR) of the mean amplitude of the P3 elicited by images of alcoholic beverages (Alcohol Cue P3) and non-alcoholic drinks (NADrink Cue P3) as well as the difference between them, which isolates alcohol cue-specific reactivity in the P3 (ACR-P3). Analyses were conducted on data from a large sample of alcohol-experienced emerging adults (session 1 N = 211, 55% female, 88% Non-Hispanic White, aged 18–20 yr; session 2 N = 98, 66% female, 90% Non-Hispanic White, aged 19–21 yr). Evaluated against domain-general thresholds, ICR was excellent (M±SD r =.902±.030) and TRR was fair (r =.706±.020) for Alcohol Cue P3 and NADrink Cue P3 whereas, for ACR-P3, ICR and TRR were poor (r =.370±.071; r =.201±.042). These findings indicate that individual differences in the P3 elicited by cues for ingested liquid rewards, including alcohol, are highly reliable and substantially stable over many months. Individual differences in alcohol cue-specific P3 reactivity were less reliable and less stable. The conditions under which alcohol/drug cue-specific reactivity in neural signals is adequately reliable and stable remain to be discovered.
Titel: |
Internal consistency and test-retest reliability of the P3 event-related potential (ERP) elicited by alcoholic and non-alcoholic beverage pictures
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Autor/in / Beteiligte Person: | Cofresí, Roberto U. ; Hajcak, Greg ; Piasecki, Thomas M. ; Bartholow, Bruce D. |
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Zeitschrift: | Psychophysiology, Jg. 59 (2021-09-18), Heft 2 |
Veröffentlichung: | 2021 |
Medientyp: | unknown |
ISSN: | 1540-5958 (print) |
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