title: Effects of alexithymia and empathy on the neural processing of social and monetary rewards.
abstract: Empathy has been found to affect the neural processing of social and monetary rewards. Alexithymia, a subclinical condition showing a close inverse relationship with empathy is linked to dysfunctions of socio-emotional processing in the brain. Whether alexithymia alters the neural processing of rewards, which is currently unknown. Here, we investigated the influence of both alexithymia and empathy on reward processing using a social incentive delay (SID) task and a monetary incentive delay (MID) task in 45 healthy men undergoing functional magnetic resonance imaging. Controlling for temperament-character dimensions and rejection sensitivity, the relationship of alexithymia and empathy with neural activity in several a priori regions of interest (ROIs) was examined by means of partial correlations, while participants anticipated and received social and monetary rewards. Results were considered significant if they survived Holm-Bonferroni correction for multiple comparisons. Alexithymia modulated neural activity in several ROIs of the emotion and reward network, both during the anticipation of social and monetary rewards and in response to the receipt of monetary rewards. In contrast, empathy did not affect reward anticipation and modulated ROI activity only in response to the receipt of social rewards. These results indicate a significant influence of alexithymia on the processing of social and monetary rewards in the healthy brain.
authors.affiliation: Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074, Aachen, Germany. kgoerlich@ukaachen.de.
authors.forename: Katharina Sophia
authors.initials: KS
authors.lastname: Goerlich
authors.affiliation: Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074, Aachen, Germany.|Institute of Neuroscience and Medicine (INM-6), Research Centre Jülich, Jülich, Germany.
authors.forename: Mikhail
authors.initials: M
authors.lastname: Votinov
authors.affiliation: Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074, Aachen, Germany.
authors.forename: Sarah E
authors.initials: SE
authors.lastname: Lammertz
authors.affiliation: Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074, Aachen, Germany.
authors.forename: Lina
authors.initials: L
authors.lastname: Winkler
authors.affiliation: Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074, Aachen, Germany.|Department of Psychology, Stanford University, Stanford, USA.
authors.forename: Katja N
authors.initials: KN
authors.lastname: Spreckelmeyer
authors.affiliation: Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074, Aachen, Germany.|JARA BRAIN Institute 1, Structure-Function Relationship, Jülich-Aachen Research Alliance, North Rhine-Westphalia, Germany.
authors.forename: Ute
authors.initials: U
authors.lastname: Habel
authors.affiliation: Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074, Aachen, Germany.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Gründer
authors.affiliation: Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074, Aachen, Germany.|JARA BRAIN Institute 1, Structure-Function Relationship, Jülich-Aachen Research Alliance, North Rhine-Westphalia, Germany.
authors.forename: Anna
authors.initials: A
authors.lastname: Gossen
mesh_terms: D000342:Affective Symptoms / Q000503:physiopathology*; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping / Q000379:methods; D004644:Emotions / Q000502:physiology*; D004645:Empathy; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D009042:Motivation; D012201:Reward
keywords: Alexithymia; Anticipation; Empathy; Feedback; Monetary; Reward; Social; fMRI