Pamela Collins - Academia.edu (original) (raw)
Papers by Pamela Collins
Psychology of Addictive Behaviors, 2006
The authors examined heart-rate responses to alcohol consumption and video lottery terminal (VLT)... more The authors examined heart-rate responses to alcohol consumption and video lottery terminal (VLT) play. Regular VLT players (30 probable pathological gamblers [PPGs]; 30 nonpathological gamblers [NPGs]) were randomized to an alcohol (mean postdrinking blood alcohol concentration ϭ 0.056%) or placebo condition. Heart rate was recorded at pre-and postdrinking baselines and during VLT play.
Pharmacology, biochemistry, and behavior, 2015
Gamblers often use alcohol and/or tobacco when they gamble but little is known about the extent t... more Gamblers often use alcohol and/or tobacco when they gamble but little is known about the extent to which drinking or smoking affects gambling behavior. This study examined the acute effects of alcohol and nicotine-containing tobacco administration on the subjective and behavioral responses to video-lottery terminal (VLT) gambling in 16 regular video-lottery terminal players (11 male) who were also regular consumers of alcohol and tobacco. During four double-blind, counterbalanced sessions, participants assessed the subjective effects of nicotine-containing tobacco or denicotinized tobacco following the administration of a moderately intoxicating dose of alcohol or a placebo beverage. They were then given $40 and provided with an opportunity to gamble using an authentic VLT. Alcohol administration was associated with increased ratings of several subjective descriptors including "intoxicated", "high", "want alcohol", "crave cigarette", and "...
The authors examined heart rate responses to video lottery terminal (VLT) play and alcohol intake... more The authors examined heart rate responses to video lottery terminal (VLT) play and alcohol intake. Forty-four VLT players were randomized to an alcohol (mean blood alcohol concentration 0.06%) or a control beverage condition. Heart rate was recorded at pre- and postdrinking baseline and during VLT play. Alcohol participants displayed elevated heart rates relative to controls at postdrinking and VLT play.
Canadian Aboriginal youth show high rates of excessive drinking, hopelessness, and depressive sym... more Canadian Aboriginal youth show high rates of excessive drinking, hopelessness, and depressive symptoms. We propose that Aboriginal adolescents with higher levels of hopelessness are more susceptible to depressive symptoms, which in turn predispose them to drinking to cope-which ultimately puts them at risk for excessive drinking. Adolescent drinkers (n = 551; 52% boys; mean age = 15.9 years) from 10 Canadian schools completed a survey consisting of the substance use risk profile scale (hopelessness), the brief symptom inventory (depressive symptoms), the drinking motives questionnaire-revised (drinking to cope), and quantity, frequency, and binge measures of excessive drinking. Structural equation modeling demonstrated the excellent fit of a model linking hopelessness to excessive drinking indirectly via depressive symptoms and drinking to cope. Bootstrapping indicated that this indirect effect was significant. Both depressive symptoms and drinking to cope should be intervention targets to prevent/decrease excessive drinking among Aboriginal youth high in hopelessness.
Journal of Gambling Studies, 2011
The Inventory of Gambling Situations (IGS-63; Turner and Littman-Sharp, Inventory of gambling sit... more The Inventory of Gambling Situations (IGS-63; Turner and Littman-Sharp, Inventory of gambling situations users guide, 2006) is a 63-item measure of high-risk gambling situations. It assesses gambling across 10 situational subscales that load onto two higher-order factors: negative and positive situations (Stewart et al. Psychology of Addictive Behaviors, 22:257-268, 2008). While the IGS-63 has excellent psychometric properties (Littman-Sharp et al., The Inventory of Gambling Situations: Reliability, factor structure, and validity (IGS Technical Manual), in press) its length may preclude its use in time-limited contexts. The purpose of this study was to develop and validate a 10-item short-form of the IGS (IGS-10). Each IGS-10 item reflects one of the ten subscale categories from the IGS-63, with two items from the original subscales included as examples for each IGS-10 item. The IGS-10 was administered to 180 undergraduate gamblers along with the IGS-63 and the Problem Gambling Severity Index (PGSI; Ferris and Wynne, Canadian Problem Gambling Index: Final report, 2001). IGS-10 items showed convergent validity with the corresponding IGS-63 subscales (r's = .60-.73). Principal components analysis of the IGS-10 revealed two factors: negative (α = .84) and positive (α = .85). PGSI scores correlated significantly with all IGS-10 items (r's = .33-.58) and with both IGS-10 higher-order subscales (r's = .66 [negative] and .49 [positive]), supporting the criterion validity of the IGS-10. Since minimal information is lost when using the IGS-10, the short form may prove particularly useful when respondent burden prevents using the full IGS-63.
Psychology of Addictive …, 2008
Pathological gamblers who drink when gambling (n ϭ 158; 77% men; mean age ϭ 36.0 years) completed... more Pathological gamblers who drink when gambling (n ϭ 158; 77% men; mean age ϭ 36.0 years) completed the Inventory of Gambling Situations (IGS) and gambling and drinking criterion measures. Principal components analysis on the IGS subscales revealed negative (e.g., Unpleasant Emotions) and positive (e.g., Pleasant Emotions) gambling situation factors. Subjecting IGS factor scores to cluster analysis revealed three clusters: (a) enhancement gamblers, with low negative and high positive factor scores; (b) coping gamblers, with very high negative and high positive factor scores; and (c) low emotion regulation gamblers, with low negative and positive factor scores (59%, 23%, and 18% of the sample, respectively). Clusters were validated with a direct measure of gambling motives. Additional validity analyses showed that coping gamblers scored higher than the other groups on a variety of different gambling activities, gambling problems, drinking frequency, drinking problems, and coping drinking motives, whereas low emotion regulation gamblers scored lower than the other groups on gambling frequency, gambling problems, drinking quantity, and enhancement drinking motives. The findings validate this empirical approach to subtyping gamblers and suggest consistency of motives across addictive behaviors.
The authors examined heart-rate responses to alcohol consumption and video lottery terminal (VLT)... more The authors examined heart-rate responses to alcohol consumption and video lottery terminal (VLT) play. Regular VLT players (30 probable pathological gamblers [PPGs]; 30 nonpathological gamblers [NPGs]) were randomized to an alcohol (mean postdrinking blood alcohol concentration 0.056%) or placebo condition. Heart rate was recorded at pre-and postdrinking baselines and during VLT play. Consistent with an earlier study (S. H. Stewart, P. Collins, J. R. Blackburn, M. Ellery, & R. Klein, 2005), alcohol-condition participants displayed elevated heart rates relative to placebo-condition participants only at postdrinking and VLT play. Moreover, alcohol-condition participants showed a greater heart rate increase to VLT play than did placebo-condition participants. However, PPGs were not more susceptible to alcohol-and/or VLT play-induced heart rate accelerations than were NPGs. Implications for gambling/ alcohol-disorder comorbidity are discussed.
Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming, Jan 12, 2014
Gambling outcome expectancies refer to the anticipated outcomes that gamblers expect will occur f... more Gambling outcome expectancies refer to the anticipated outcomes that gamblers expect will occur from gambling (i.e., learned memory associations between gambling cues, behavior, and outcomes). Unlike previous approaches to gambling outcome expectancies that have predominantly focused on the valence of outcome expectancies (positive vs. negative), the present study investigated two specific types of positive gambling outcome expectancies: reward and relief gambling outcome expectancies. Specifically, the primary purpose of the current research was to examine whether gambling prime exposure activates different types of positive gambling outcome expectancies in enhancement- versus coping-motivated gamblers. Fifty adult, community-recruited regular gamblers performed a reaction time (RT) task and completed a self-report expectancy scale, both designed to assess reward and relief gambling outcome expectancies. They also completed the Gambling Motives Questionnaire (Stewart and Zack in Ad...
Psychology of Addictive Behaviors, 2006
The authors examined heart-rate responses to alcohol consumption and video lottery terminal (VLT)... more The authors examined heart-rate responses to alcohol consumption and video lottery terminal (VLT) play. Regular VLT players (30 probable pathological gamblers [PPGs]; 30 nonpathological gamblers [NPGs]) were randomized to an alcohol (mean postdrinking blood alcohol concentration ϭ 0.056%) or placebo condition. Heart rate was recorded at pre-and postdrinking baselines and during VLT play.
Pharmacology, biochemistry, and behavior, 2015
Gamblers often use alcohol and/or tobacco when they gamble but little is known about the extent t... more Gamblers often use alcohol and/or tobacco when they gamble but little is known about the extent to which drinking or smoking affects gambling behavior. This study examined the acute effects of alcohol and nicotine-containing tobacco administration on the subjective and behavioral responses to video-lottery terminal (VLT) gambling in 16 regular video-lottery terminal players (11 male) who were also regular consumers of alcohol and tobacco. During four double-blind, counterbalanced sessions, participants assessed the subjective effects of nicotine-containing tobacco or denicotinized tobacco following the administration of a moderately intoxicating dose of alcohol or a placebo beverage. They were then given $40 and provided with an opportunity to gamble using an authentic VLT. Alcohol administration was associated with increased ratings of several subjective descriptors including "intoxicated", "high", "want alcohol", "crave cigarette", and "...
The authors examined heart rate responses to video lottery terminal (VLT) play and alcohol intake... more The authors examined heart rate responses to video lottery terminal (VLT) play and alcohol intake. Forty-four VLT players were randomized to an alcohol (mean blood alcohol concentration 0.06%) or a control beverage condition. Heart rate was recorded at pre- and postdrinking baseline and during VLT play. Alcohol participants displayed elevated heart rates relative to controls at postdrinking and VLT play.
Canadian Aboriginal youth show high rates of excessive drinking, hopelessness, and depressive sym... more Canadian Aboriginal youth show high rates of excessive drinking, hopelessness, and depressive symptoms. We propose that Aboriginal adolescents with higher levels of hopelessness are more susceptible to depressive symptoms, which in turn predispose them to drinking to cope-which ultimately puts them at risk for excessive drinking. Adolescent drinkers (n = 551; 52% boys; mean age = 15.9 years) from 10 Canadian schools completed a survey consisting of the substance use risk profile scale (hopelessness), the brief symptom inventory (depressive symptoms), the drinking motives questionnaire-revised (drinking to cope), and quantity, frequency, and binge measures of excessive drinking. Structural equation modeling demonstrated the excellent fit of a model linking hopelessness to excessive drinking indirectly via depressive symptoms and drinking to cope. Bootstrapping indicated that this indirect effect was significant. Both depressive symptoms and drinking to cope should be intervention targets to prevent/decrease excessive drinking among Aboriginal youth high in hopelessness.
Journal of Gambling Studies, 2011
The Inventory of Gambling Situations (IGS-63; Turner and Littman-Sharp, Inventory of gambling sit... more The Inventory of Gambling Situations (IGS-63; Turner and Littman-Sharp, Inventory of gambling situations users guide, 2006) is a 63-item measure of high-risk gambling situations. It assesses gambling across 10 situational subscales that load onto two higher-order factors: negative and positive situations (Stewart et al. Psychology of Addictive Behaviors, 22:257-268, 2008). While the IGS-63 has excellent psychometric properties (Littman-Sharp et al., The Inventory of Gambling Situations: Reliability, factor structure, and validity (IGS Technical Manual), in press) its length may preclude its use in time-limited contexts. The purpose of this study was to develop and validate a 10-item short-form of the IGS (IGS-10). Each IGS-10 item reflects one of the ten subscale categories from the IGS-63, with two items from the original subscales included as examples for each IGS-10 item. The IGS-10 was administered to 180 undergraduate gamblers along with the IGS-63 and the Problem Gambling Severity Index (PGSI; Ferris and Wynne, Canadian Problem Gambling Index: Final report, 2001). IGS-10 items showed convergent validity with the corresponding IGS-63 subscales (r's = .60-.73). Principal components analysis of the IGS-10 revealed two factors: negative (α = .84) and positive (α = .85). PGSI scores correlated significantly with all IGS-10 items (r's = .33-.58) and with both IGS-10 higher-order subscales (r's = .66 [negative] and .49 [positive]), supporting the criterion validity of the IGS-10. Since minimal information is lost when using the IGS-10, the short form may prove particularly useful when respondent burden prevents using the full IGS-63.
Psychology of Addictive …, 2008
Pathological gamblers who drink when gambling (n ϭ 158; 77% men; mean age ϭ 36.0 years) completed... more Pathological gamblers who drink when gambling (n ϭ 158; 77% men; mean age ϭ 36.0 years) completed the Inventory of Gambling Situations (IGS) and gambling and drinking criterion measures. Principal components analysis on the IGS subscales revealed negative (e.g., Unpleasant Emotions) and positive (e.g., Pleasant Emotions) gambling situation factors. Subjecting IGS factor scores to cluster analysis revealed three clusters: (a) enhancement gamblers, with low negative and high positive factor scores; (b) coping gamblers, with very high negative and high positive factor scores; and (c) low emotion regulation gamblers, with low negative and positive factor scores (59%, 23%, and 18% of the sample, respectively). Clusters were validated with a direct measure of gambling motives. Additional validity analyses showed that coping gamblers scored higher than the other groups on a variety of different gambling activities, gambling problems, drinking frequency, drinking problems, and coping drinking motives, whereas low emotion regulation gamblers scored lower than the other groups on gambling frequency, gambling problems, drinking quantity, and enhancement drinking motives. The findings validate this empirical approach to subtyping gamblers and suggest consistency of motives across addictive behaviors.
The authors examined heart-rate responses to alcohol consumption and video lottery terminal (VLT)... more The authors examined heart-rate responses to alcohol consumption and video lottery terminal (VLT) play. Regular VLT players (30 probable pathological gamblers [PPGs]; 30 nonpathological gamblers [NPGs]) were randomized to an alcohol (mean postdrinking blood alcohol concentration 0.056%) or placebo condition. Heart rate was recorded at pre-and postdrinking baselines and during VLT play. Consistent with an earlier study (S. H. Stewart, P. Collins, J. R. Blackburn, M. Ellery, & R. Klein, 2005), alcohol-condition participants displayed elevated heart rates relative to placebo-condition participants only at postdrinking and VLT play. Moreover, alcohol-condition participants showed a greater heart rate increase to VLT play than did placebo-condition participants. However, PPGs were not more susceptible to alcohol-and/or VLT play-induced heart rate accelerations than were NPGs. Implications for gambling/ alcohol-disorder comorbidity are discussed.
Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming, Jan 12, 2014
Gambling outcome expectancies refer to the anticipated outcomes that gamblers expect will occur f... more Gambling outcome expectancies refer to the anticipated outcomes that gamblers expect will occur from gambling (i.e., learned memory associations between gambling cues, behavior, and outcomes). Unlike previous approaches to gambling outcome expectancies that have predominantly focused on the valence of outcome expectancies (positive vs. negative), the present study investigated two specific types of positive gambling outcome expectancies: reward and relief gambling outcome expectancies. Specifically, the primary purpose of the current research was to examine whether gambling prime exposure activates different types of positive gambling outcome expectancies in enhancement- versus coping-motivated gamblers. Fifty adult, community-recruited regular gamblers performed a reaction time (RT) task and completed a self-report expectancy scale, both designed to assess reward and relief gambling outcome expectancies. They also completed the Gambling Motives Questionnaire (Stewart and Zack in Ad...