Poster B26, Sunday, March 25, 8:00-10:00 am, Exhibit Hall C
Dissociating Proactive and Reactive Control in Adolescents and Young Adults with Autism Spectrum Disorder
Marie K. Krug1, Jeremy Hogeveen1, Cory C. Coleman1, Matthew V. Elliott1, Seoyoung Gam1, Cameron S. Carter1, Marjorie Solomon1; 1University of California, Davis
According to the dual mechanisms of control framework, there are two types of cognitive control: proactive control, which is preparatory and sustained, and reactive control, which is implemented after interference has already occurred (Braver, 2012; Braver, Gray, & Burgess, 2007). Although individuals with autism spectrum disorder (ASD) have impaired cognitive control, previously used paradigms have not been able to dissociate proactive and reactive control. Adolescents and young adults with ASD (N=20) or typical development (TYP: N=20) performed baseline, proactive (list-wide manipulation of proportion congruency; LWPC) and reactive (item-specific manipulation of proportion congruency; ISPC) versions of an auditory Stroop paradigm developed to measure various indices of proactive and reactive control (Gonthier, Braver, & Bugg, 2016). TYP and ASD showed similar reliance on proactive control in the LWPC task. In ASD, proactive control was associated with both a clinical benefit–reduced attention problems–as well as a clinical cost–increased repetitive behaviors–suggesting that high levels of proactive control may confer advantages and disadvantages in individuals with ASD. TYP participants showed a trend toward utilization of reactive control on the ISPC version of the task, while ASD did not. Performance of the ISPC was always after the LWPC, and therefore individuals with ASD may have difficulty switching to a reactive control strategy following performance of a proactive control task. Data collection is ongoing and future analyses will look at the implementation of reactive control over time, as well as age effects on the development of proactive and reactive control in our groups.
Topic Area: EXECUTIVE PROCESSES: Goal maintenance & switching