title: Shared learning shapes human performance: Transfer effects in task sharing.
abstract: We investigated whether performing a task with a co-actor shapes the way a subsequent task is performed. In four experiments participants were administered a Simon task after practicing a spatial compatibility task with an incompatible S-R mapping. In Experiment 1 they performed both tasks alongside another person; in Experiment 2 they performed the spatial compatibility task alone, responding to only one stimulus position, and the Simon task with another person; in Experiment 3, they performed the spatial compatibility task with another person and the Simon task alone; finally, in Experiment 4, they performed the spatial compatibility task alone and the Simon task with another person. The incompatible practice eliminated the Simon effect in Experiments 1 and 4. These results indicate that when a task is distributed between two participants with each one performing a different part of it, they tend to represent the whole task rather than their own part of it. This experience can influence the way a subsequent task is performed, as long as this latter occurs in a social context.
authors.affiliation: Università di Modena e Reggio Emilia, Italy.
authors.forename: Nadia
authors.initials: N
authors.lastname: Milanese
authors.forename: Cristina
authors.initials: C
authors.lastname: Iani
authors.forename: Sandro
authors.initials: S
authors.lastname: Rubichi
mesh_terms: D000328:Adult; D003071:Cognition / Q000502:physiology; D005260:Female; D006801:Humans; D007858:Learning / Q000502:physiology*; D008297:Male; D010775:Photic Stimulation; D011214:Practice, Psychological; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D012919:Social Behavior; D012931:Social Environment; D055815:Young Adult