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Full-Text Articles in Medicine and Health Sciences
Mesotocin Influences Pinyon Jay Prosociality, J. F. Duque, W. Leichner, H. Ahmann, Jeffrey R. Stevens
Mesotocin Influences Pinyon Jay Prosociality, J. F. Duque, W. Leichner, H. Ahmann, Jeffrey R. Stevens
Center for Brain, Biology, and Behavior: Faculty and Staff Publications
Many species exhibit prosocial behavior , in which one individual’s actions benefit another individual, often without an immediate benefit to itself. The neuropeptide oxytocin is an important hormonal mechanism influencing prosociality in mammals, but it is unclear whether the avian homologue mesotocin plays a similar functional role in birds. Here, we experimentally tested prosociality in pinyon jays (Gymnorhinus cyanocephalus), a highly social corvid species that spontaneously shares food with others. First, we measured prosocial preferences in a prosocial choice task with two different pay-off distributions: Prosocial trials delivered food to both the subject and either an empty cage …
Impulsivity And Cigarette Craving: Differences Across Subtypes, Neal Doran, Jessica Werth Cook, Dennis E. Mcchargue, Bonnie Spring
Impulsivity And Cigarette Craving: Differences Across Subtypes, Neal Doran, Jessica Werth Cook, Dennis E. Mcchargue, Bonnie Spring
Department of Psychology: Faculty Publications
Rationale: Cigarette smoking has been linked to a number of personality characteristics, including impulsivity. Smokers tend to endorse high levels of impulsivity, and more impulsive smokers have greater difficulty quitting, but little is known about potential explanatory mechanisms. Although indirect evidence suggests craving as a candidate mechanism, direct evidence has been mixed.
Materials and methods: This study assessed whether specific aspects of impulsivity (sensation seeking, lack of premeditation, lack of perseverance, and urgency) were associated with cue-induced craving. Regular smokers (n= 60; 50% female) were exposed to a smoking cue and a neutral cue in a repeated measure …