@inproceedings{961fc84b175b4f98b9a72e5d685c4092,
title = "Dynamic structure of joint-action stimulus-response activity",
abstract = "The mere presence of a co-actor can influence an individual's response behavior. For instance, a social Simon effect has been observed when two individuals perform a Go/No-Go response to one of two stimuli in the presence of each other, but not when they perform the same task alone. Such effects are argued to provide evidence that individuals co-represent the task goals and the to-be-performed actions of a co-actor. Motivated by the complex-systems approach, the present study was designed to investigate an alternative hypothesis-that such joint-action effects are due to dynamical (time-evolving) entrainment processes that perturb and couple the behavior of socially situated actors. To investigate this possibility, participants performed a standard Go/No-Go Simon task in joint and individual conditions. The dynamic structure of recorded response times (RTs) was examined using fractal statistics and instantaneous cross-correlation. Consistent with our hypothesis that participants responding in a shared space would become behaviorally coupled, the analyses revealed that RTs in the joint condition displayed decreased fractal structure (indicative of an interpersonal coupling perturbing and constraining participant behavior) compared to the individual condition, and were more correlated across a range of time-scales compared to the RTs of pseudo-pair controls. Collectively, the findings imply that self-organizing dynamic processes might underlie social stimulus-response compatibility effects and shape joint cognitive processes in general.",
keywords = "dynamical systems, interpersonal coordination, joint action, pink noise, stimulus-response compatibility",
author = "Malone, {Mary Lauren} and Castillo, {Ramon D.} and Holden, {John G.} and Heidi Kloos and Richardson, {Michael J.}",
year = "2013",
language = "English",
series = "Proceedings of the Annual Meeting of the Cognitive Science Society",
publisher = "Cognitive Science Society",
pages = "966--971",
editor = "Markus Knauff and Natalie Sebanz and Michael Pauen and Ipke Wachsmuth",
booktitle = "CogSci 2013: Cooperative minds: social interaction and group dynamics",
note = "Annual Meeting of the Cognitive Science Society (35th : 2013) ; Conference date: 31-07-2013 Through 03-08-2013",
}