A central capacity sharing model of dual-task performance.

The authors present the central capacity sharing (CCS) model and derive equations describing its behaviors to explain results from dual-task situations. The predictions of the CCS model are contrasted with those of the central bottleneck model. The CCS model predicts all of the hallmark effects of the psychological refractory period (PRP) pardigm: -1 slope of the PRP effect at short stimulus onset asynchronies (SOAs), underadditivity of precentral Task 2 manipulations, additivity of central or postcentral Task 2 manipulations with SOA, and carry forward to Task 2 of Task 1 precentral or central manipulations at short SOAs. The CCS model also predicts that Task 1 response times increase with decreasing SOA. The model is a viable alternative to the central bottleneck model.

[1]  C. W. Telford.  The refractory phase of voluntary and associative responses , 1931 .

[2]  A. Welford.  THE ‘PSYCHOLOGICAL REFRACTORY PERIOD’ AND THE TIMING OF HIGH‐SPEED PERFORMANCE—A REVIEW AND A THEORY , 1952 .

[3]  Michael E. McCauley,et al.  Delay in responding to the first stimulus in the "psychological refractory period" experiment: Comparisons with delay produced by a second stimulus not requiring a response , 1969 .

[4]  Barry H. Kantowitz,et al.  The psychological refractory period effect: Only half the double-stimulation story? , 1970 .

[5]  Stephen J. Boies,et al.  Components of attention. , 1971 .

[6]  D. Kahneman,et al.  Attention and Effort , 1973 .

[7]  Daniel Gopher,et al.  On the Economy of the Human Processing System: A Model of Multiple Capacity. , 1977 .

[8]  Peter McLeod,et al.  Parallel processing and the psychological refractory period , 1977 .

[9]  Gordon D. Logan,et al.  Attention in Character-Classification Tasks : Evidence for the Automaticity of Component Stages , 1978 .

[10]  J. Duncan.  Divided attention: the whole is more than the sum of its parts. , 1979, Journal of experimental psychology. Human perception and performance.

[11]  J. C. Johnston,et al.  Chronometric Evidence for Central Postponement in Temporally Overlapping Tasks , 2003 .

[12]  C. Bundesen.  A theory of visual attention. , 1990, Psychological review.

[13]  H. Pashler.  Do response modality effects support multiprocessor models of divided attention? , 1990, Journal of experimental psychology. Human perception and performance.

[14]  H Pashler,et al.  Shifting visual attention and selecting motor responses: distinct attentional mechanisms. , 1991, Journal of experimental psychology. Human perception and performance.

[15]  Ritske de Jong,et al.  Multiple bottlenecks in overlapping task performance , 1993 .

[16]  R. D. de Jong,et al.  Multiple bottlenecks in overlapping task performance. , 1993, Journal of experimental psychology. Human perception and performance.

[17]  H. Pashler.  Dual-task interference in simple tasks: data and theory. , 1994, Psychological bulletin.

[18]  H. Pashler,et al.  Graded capacity-sharing in dual-task interference? , 1994, Journal of experimental psychology. Human perception and performance.

[19]  Jeff Miller,et al.  Switching or sharing in dual-task line-length discrimination? , 1994, Perception & psychophysics.

[20]  Ritske De Jong,et al.  The Role of Preparation in Overlapping-task Performance , 1995, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[21]  H Pashler,et al.  Attentional limits in memory retrieval. , 1995, Journal of experimental psychology. Learning, memory, and cognition.

[22]  Ritske de Jong,et al.  THE ROLE OF PREPARATION IN OVERLAPPING-TASK PERFORMANCE , 1995 .

[23]  P. Jolicoeur,et al.  Decision and Response in Dual-Task Interference , 1997, Cognitive Psychology.

[24]  D E Kieras,et al.  A computational theory of executive cognitive processes and multiple-task performance: Part 1. Basic mechanisms. , 1997, Psychological review.

[25]  David E. Kieras,et al.  A computational theory of executive cognitive processes and multiple-task performance: Part 2. Accounts of psychological refractory-period phenomena. , 1997 .

[26]  R. Nosofsky,et al.  An exemplar-based random walk model of speeded classification. , 1997, Psychological review.

[27]  B. Hommel.  Automatic stimulus-response translation in dual-task performance. , 1998, Journal of experimental psychology. Human perception and performance.

[28]  G D Logan,et al.  Parallel memory retrieval in dual-task situations: I. Semantic memory. , 2000, Journal of experimental psychology. Human perception and performance.

[29]  R. D. Gordon,et al.  Executive control of visual attention in dual-task situations. , 2001, Psychological review.

[30]  G D Logan,et al.  Parallel memory retrieval in dual-task situations: II. Episodic memory. , 2001, Journal of experimental psychology. Learning, memory, and cognition.

[31]  Jennifer M. Glass,et al.  Virtually Perfect Time Sharing in Dual-Task Performance: Uncorking the Central Cognitive Bottleneck , 2001, Psychological science.

[32]  Gordon D. Logan,et al.  Parallel memory retrieval in dual-task situations: II. Episodic memory. , 2001 .

[33]  D. Navon,et al.  Queuing or Sharing? A Critical Evaluation of the Single-Bottleneck Notion , 2002, Cognitive Psychology.

[34]  Pierre Jolicœur,et al.  All-or-none bottleneck versus capacity sharing accounts of the psychological refractory period phenomenon , 2002, Psychological research.

[35]  Bernhard Hommel,et al.  Control of stimulus-response translation in dual-task performance , 2002, Psychological research.

[36]  J. C. Johnston,et al.  Locus of the single-channel bottleneck in dual-task interference , 1992 .