Theses and Dissertations at Montana State University (MSU)
Permanent URI for this collectionhttps://scholarworks.montana.edu/handle/1/733
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Item Adolescent, parent, and nurse practitioner contract for behavioral change : a booklet to guide the process(Montana State University - Bozeman, College of Nursing, 1999) Babb, Deanna Lynn; Chairperson, Graduate Committee: Daryl T. RiesItem Behavior modification of children by parents in the home : a modified case study approach(Montana State University - Bozeman, College of Professional Schools, 1971) Slaughter, Constance LawrenzItem Deceleration of a blindism using Lindsley's Behavioral Modification(Montana State University - Bozeman, 1971) Olson, Myrna MunsonItem The establishment of the Beta process in children and its application to therapy(Montana State University - Bozeman, 1973) Mattocks, Linda FoyItem Exploring associations between proactive and reactive control(Montana State University - Bozeman, College of Letters & Science, 2016) Begnoche, John Patrick; Chairperson, Graduate Committee: Rebecca BrookerCognitive control is the act of regulating, coordinating, and sequencing mental processes in accordance with internally maintained behavioral goals (Braver, 2012; Norman & Shallice, 1986). The Dual Mechanisms of Control (DMC) theory argues that variations in cognitive control are driven by two distinct operating modes, proactive control and reactive control (Braver et al., 2007). Proactive control is defined as an anticipatory and effortful attentional strategy that actively sustains task-relevant information before the occurrence of a cognitively demanding event (Miller & Cohen, 2001). In contrast, reactive control is an automatic process that is passively maintained and relies upon high-conflict, or trigger, events to reactivate task-relevant information after the occurrence of a cognitively demanding event (Jacoby, Kelley, & McElree, 1999). Traditional models of cognitive control focus on reactive control initiating proactive control (Botvinick, Nystrom, Fissell, Carter, & Cohen, 1999). Yet, recent research suggests the possibility of shifting to a predominantly proactive strategy with less reliance on reactive processing (Braver, Paxton, Locke, & Barch, 2009; Schmid, Kleiman, Amodio, 2015). However, little work has analyzed a direct relation between continuously sustained proactive control and reduced input from reactive control. In addition, affective variables might impact the ability to shift between proactive and reactive modes of control (Braver, Gray, & Burgess, 2007). Individuals high in trait levels of worry exhibit heightened reactive control and reduced proactive control compared to controls (Moser, Moran, Schroder, Donnellan, & Yeung, 2013). In the current study, participants performed a cognitively-demanding task while neural correlates of proactive and reactive control were measured. Self-reported levels of trait worry were also collected. In agreement with a proactive model of cognitive control, the results of this experiment indicated that greater levels of sustained proactive control predicted decreased reactive processing. However, this relation was moderated by trait-worry such that enhanced proactive control only predicted decreased reactive control when levels of trait worry were low.