PMID- 15212113 OWN - NLM STAT- MEDLINE DCOM- 20040805 LR - 20131121 IS - 0393-5264 (Print) IS - 0393-5264 (Linking) VI - 19 IP - 1 DP - 2004 Jan-Mar TI - Personality and the effects of acute alcohol intake. A contingent negative variation study in healthy subjects. PG - 25-30 AB - This study investigates the relationship between blood alcohol concentrations (BACs) and contingent negative variation (CNV). Fourteen healthy subjects were divided on the basis of their personality profiles--the Minnesota Multiphasic Personality Inventory (Hs+Hy+D/3)--into a high score (HS) and low score (LS) subgroup. The CNV was recorded using a choice-reaction time (RT) task. CNV recording was performed in two conditions: inter-stimulus intervals (ISIs) of 1500 ms and 2500 ms at three different BACs (0.3, 0.5 and 0.8 g/L) after acute alcohol administration. At the high BAC (0.8 g/L), both subgroups showed a reduced CNV amplitude area and a longer RT (p<.05) in both ISI conditions. No effects either on the CNV or on the RT were observed at the low BAC (0.3 g/L). At the intermediate BAC (0.5 g/L), the HS subgroup displayed an increased CNV amplitude (p<.05), not accompanied by a significantly longer RT (short ISI condition), and a reduced late CNV (p<.05) with a longer RT (p<.05) (long ISI condition). In the LS group, only a longer RT was observed in the long ISI condition. CNV modifications point to an individual, apparently personality-related, threshold of sensitivity to different alcohol levels. FAU - Fattapposta, Francesco AU - Fattapposta F AD - Department of Neurology and Otolaryngology, University La Sapienza, Rome, Italy. francesco.fattapposta@uniroma1.it FAU - Venturi, Piero AU - Venturi P FAU - Carella Prada, Ozrem AU - Carella Prada O FAU - Costamagna, Luisa AU - Costamagna L FAU - D'Alessio, Carmelo AU - D'Alessio C FAU - Mostarda, Mirella AU - Mostarda M FAU - Mina, Concetta AU - Mina C FAU - Parisi, Leoluca AU - Parisi L FAU - Pirro, Cristina AU - Pirro C FAU - Amabile, Giuseppe AU - Amabile G LA - eng PT - Clinical Trial PT - Journal Article PL - Italy TA - Funct Neurol JT - Functional neurology JID - 8707746 RN - 3K9958V90M (Ethanol) SB - IM MH - Adult MH - Alcoholic Intoxication/*blood/psychology MH - Analysis of Variance MH - Choice Behavior/drug effects/physiology MH - Contingent Negative Variation/*drug effects/physiology MH - Differential Threshold MH - Dose-Response Relationship, Drug MH - Ethanol/*blood MH - Female MH - Humans MH - MMPI MH - Male MH - Personality/*physiology MH - Problem Solving/*drug effects/physiology MH - Reaction Time/*drug effects/physiology MH - Reference Values MH - Time Factors EDAT- 2004/06/24 05:00 MHDA- 2004/08/06 05:00 CRDT- 2004/06/24 05:00 PHST- 2004/06/24 05:00 [pubmed] PHST- 2004/08/06 05:00 [medline] PHST- 2004/06/24 05:00 [entrez] PST - ppublish SO - Funct Neurol. 2004 Jan-Mar;19(1):25-30.