caa a22 4500 463248651 CHVBK 20180405153333.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s11031-007-9059-8 doi (NATIONALLICENCE)springer-10.1007/s11031-007-9059-8 Investigating the dynamics of affect: Psychological mechanisms of affective habituation to pleasurable stimuli [Elektronische Daten] [Adam Leventhal, Rodney Martin, Robert Seals, Evelina Tapia, Lynn Rehm] Affective habituation (i.e., reductions in stimulus-evoked affective reactions as a result of previous exposure) may serve a functional purpose. However, little is know about the psychological mechanisms underlying this process. To elucidate the characteristics of affective habituation, two experiments that examined affective reactions to repeated exposures of pleasurable stimuli were conducted. Results of these experiments indicated that habituation trajectories are characterized by linear decreases in affect. Results also demonstrated that habituation can be slowed by the introduction of novel stimuli (i.e., "novelty effects”), effects that are dimensional (rather than taxonic) in nature. Experiment 2 demonstrated that habituation is mediated by conceptual rather than perceptual processes. Depressed and anhedonic individuals were not more susceptible to habituation in either experiment. The current findings and previous theorizing suggest that habituation may be an important component of an adaptive affective processing system that promotes effective responses to salient stimuli and prevents compulsive reward-seeking behavior. Springer Science+Business Media, LLC, 2007 Affective habituation nationallicence Affective dynamics nationallicence Reward-seeking behavior nationallicence Conceptual processes nationallicence Anhedonia nationallicence Leventhal Adam Department of Psychiatry and Human Behavior, Brown Medical School, Box G-BH, 02912, Providence, RI, USA aut Martin Rodney University of Houston, Houston, TX, USA aut Seals Robert University of Houston, Houston, TX, USA aut Tapia Evelina University of Houston, Houston, TX, USA aut Rehm Lynn University of Houston, Houston, TX, USA aut Motivation and Emotion Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 31/2(2007-06-01), 145-157 0146-7239 31:2<145 2007 31 11031 https://doi.org/10.1007/s11031-007-9059-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11031-007-9059-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Leventhal Adam Department of Psychiatry and Human Behavior, Brown Medical School, Box G-BH, 02912, Providence, RI, USA aut NATIONALLICENCE 700 1- Martin Rodney University of Houston, Houston, TX, USA aut NATIONALLICENCE 700 1- Seals Robert University of Houston, Houston, TX, USA aut NATIONALLICENCE 700 1- Tapia Evelina University of Houston, Houston, TX, USA aut NATIONALLICENCE 700 1- Rehm Lynn University of Houston, Houston, TX, USA aut NATIONALLICENCE 773 0- Motivation and Emotion Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 31/2(2007-06-01), 145-157 0146-7239 31:2<145 2007 31 11031 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer