ASPÉ SÁNCHEZ, MAURICIO ALEJANDRO
Thumbnail Image
Preferred name
ASPÉ SÁNCHEZ, MAURICIO ALEJANDRO
Main Affiliation
Email
maspes@udd.cl
ORCID
Scopus Author ID
57115502100

Research Output

2020 2020 2019 2019 2018 2018 2017 2017 2016 2016 0.0 0.0 0.2 0.2 0.4 0.4 0.6 0.6 0.8 0.8 1.0 1.0

Filters

2
2
2
Reset filters

Settings
Now showing 1 - 2 of 2
No Thumbnail Available
Publication

Late Frontal Negativity Discriminates Outcomes and Intentions in Trust-Repayment Behavior

2020 , ASPÉ SÁNCHEZ, MAURICIO ALEJANDRO , Paola Mengotti , Raffaella Rumiati , RODRÍGUEZ SICKERT, CARLOS ANDRÉS , John Ewer , BILLEKE BOBADILLA, PABLO ERNESTO

Altruism (a costly action that benefits others) and reciprocity (the repayment of acts in kind) differ in that the former expresses preferences about the outcome of a social interaction, whereas the latter requires, in addition, ascribing intentions to others. Interestingly, an individual’s behavior and neurophysiological activity under outcome- versus intention-based interactions has not been compared directly using different endowments in the same subject and during the same session. Here, we used a mixed version of the Dictator and the Investment games, together with electroencephalography, to uncover a subject’s behavior and brain activity when challenged with endowments of different sizes in contexts that call for an altruistic (outcome-based) versus a reciprocal (intention-based) response. We found that subjects displayed positive or negative reciprocity (reciprocal responses greater or smaller than that for altruism, respectively) depending on the amount of trust they received. Furthermore, a subject’s late frontal negativity differed between conditions, predicting responses to trust in intentions-based trials. Finally, brain regions related with mentalizing and cognitive control were the cortical sources of this activity. Thus, our work disentangles the behavioral components present in the repayment of trust, and sheds light on the neural activity underlying the integration of outcomes and perceived intentions in human economic interactions.

View
No Thumbnail Available
Publication

Oxytocin and Vasopressin Receptor Gene Polymorphisms: Role in Social and Psychiatric Traits

2016 , ASPÉ SÁNCHEZ, MAURICIO ALEJANDRO , Macarena Moreno , RIVERA HECHEN, MARÍA IGNACIA , Alejandra Rossi , John Ewer

View