Integrating working memory capacity and context-processing views of cognitive control.

Individuals low in working memory capacity (WMC) exhibit impaired performance on a variety of cognitive control tasks. The executive-attention theory of WMC (Engle & Kane, [2004[) accounts for these findings as failures of goal maintenance and response conflict resolution. Similarly, the context-processing view (Braver et al., [2001]) provides an explanation of cognitive control deficits observed in schizophrenia patients and older adults that is based on the ability to maintain context information. Instead of maintenance deficits, the inhibition view (Hasher, Lustig, & Zacks, [2007]) states that older adults and individuals low in WMC primarily have an impairment in the ability to inhibit information. In the current experiment, we explored the relationships among these theories. Individuals differing in performance on complex span measures of WMC performed the AX-Continuous Performance Test to measure context-processing performance. High-WMC individuals were predicted to maintain the context afforded by the cue, whereas low-WMC individuals were predicted to fail to maintain the context information. Low-WMC individuals made more errors on AX and BX trials and were slower to respond correctly on AX, BX, and BY trials. The overall pattern of results is most consistent with both the executive-attention and context-processing theories of cognitive control.

[1]  Josef C. Schrock,et al.  Working memory capacity and the antisaccade task: individual differences in voluntary saccade control. , 2004, Journal of experimental psychology. Learning, memory, and cognition.

[2]  S. Tipper,et al.  Quarterly Journal of Experimental Psychology , 1948, Nature.

[3]  Thomas S. Redick,et al.  Working memory capacity and go/no-go task performance: selective effects of updating, maintenance, and inhibition. , 2011, Journal of experimental psychology. Learning, memory, and cognition.

[4]  Andrew R. A. Conway,et al.  A controlled-attention view of working-memory capacity. , 2001, Journal of experimental psychology. General.

[5]  R. Engle,et al.  Executive Attention, Working Memory Capacity, and a Two-Factor Theory of Cognitive Control. , 2003 .

[6]  Ajay B. Satpute,et al.  Context processing and context maintenance in healthy aging and early stage dementia of the Alzheimer's type. , 2005, Psychology and aging.

[7]  Eddy J. Davelaar,et al.  Age-Related Declines in Context Maintenance and Semantic Short-Term Memory , 2005, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[8]  R. Engle,et al.  Working-memory capacity and the control of attention: the contributions of goal neglect, response competition, and task set to Stroop interference. , 2003, Journal of experimental psychology. General.

[9]  J. Cohen,et al.  Context-processing deficits in schizophrenia: converging evidence from three theoretically motivated cognitive tasks. , 1999, Journal of abnormal psychology.

[10]  Deanna M Barch,et al.  Effects of environmental support and strategy training on older adults' use of context. , 2006, Psychology and aging.

[11]  Richard P. Heitz,et al.  An automated version of the operation span task , 2005, Behavior research methods.

[12]  Richard P. Heitz,et al.  Complex working memory span tasks and higher-order cognition: A latent-variable analysis of the relationship between processing and storage , 2009, Memory.

[13]  M. Kane,et al.  Working-memory capacity predicts the executive control of visual search among distractors: The influences of sustained and selective attention , 2009, Quarterly journal of experimental psychology.

[14]  Thomas S. Redick,et al.  CNTRICS final task selection: working memory. , 2009, Schizophrenia bulletin.

[15]  Andrew R. A. Conway,et al.  Variation in working memory , 2008 .

[16]  C. Lustig,et al.  Inhibitory Mechanisms and the Control of Attention , 2007 .

[17]  J. Yesavage,et al.  Context processing in older adults: evidence for a theory relating cognitive control to neurobiology in healthy aging. , 2001, Journal of experimental psychology. General.