Dual-task interference and the cerebral hemispheres.

It has been argued that dual-task interference is reduced when the two cerebral hemispheres can carry out the two tasks independently. Evidence for this idea has arisen from studies involving manipulations such as lateralized stimulation or response, or requiring mental operations believed to depend primarily on a particular hemisphere. However, these studies have typically involved a very limited degree of response uncertainty, which appears critical in producing the most extreme dual-task interference (the psychological refractory effect). Pairs of tasks with independent response uncertainty were examined, and various manipulations were used to promote hemispheric task separation. Dual-task interference was not modulated by these manipulations. It seems likely that response selection represents a central bottleneck, in the sense that this process cannot operate simultaneously and independently in the two hemispheres.

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

[2]  M C Polson,et al.  Hemispheres as independent resource systems: limited-capacity processing and cerebral specialization. , 1981, Journal of experimental psychology. Human perception and performance.

[3]  Lateralized interference of repetitive finger tapping: Influence of familial handedness, cognitive load and verbal production , 1983, Neuropsychologia.

[4]  J. Requin Attention and Performance VII , 1980 .

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

[6]  K. Rayner,et al.  Hemispheric specialization in reading and word recognition , 1977, Brain and Language.

[7]  H Pashler,et al.  Processing stages in overlapping tasks: evidence for a central bottleneck. , 1984, Journal of experimental psychology. Human perception and performance.

[8]  David E. Meyer,et al.  Dual-Task Interference and Elementary Mental Mechanisms , 1993 .

[9]  R. C. Oldfield The assessment and analysis of handedness: the Edinburgh inventory. , 1971, Neuropsychologia.

[10]  Jeff Miller,et al.  Divided attention: Evidence for coactivation with redundant signals , 1982, Cognitive Psychology.

[11]  S. P. Springer,et al.  Left brain, right brain, Rev. ed. , 1985 .

[12]  Harold Pashler,et al.  Do response modality effects support multiprocessor models of divided attention , 1990 .

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

[14]  J. Liederman,et al.  Subtraction in addition to addition: dual task performance improves when tasks are presented to separate hemispheres. , 1986, Journal of clinical and experimental neuropsychology.

[15]  T. Rasmussen,et al.  INTRACAROTID INJECTION OF SODIUM AMYTAL FOR THE LATERALIZATION OF CEREBRAL SPEECH DOMINANCE EXPERIMENTAL AND CLINICAL OBSERVATIONS , 1960 .

[16]  Alinda Friedman,et al.  Dividing Attention Between the Hands and the Head: Performance Trade-Offs Between Rapid Finger Tapping and Verbal Memory , 1988 .

[17]  H. Pashler Dual-task interference and elementary mental mechanisms , 1993 .

[18]  S. Dimond Hemispheric Refractoriness and Control of Reaction Time , 1970, The Quarterly journal of experimental psychology.

[19]  A. Friedman,et al.  Dividing attention within and between hemispheres: testing a multiple resources approach to limited-capacity information processing. , 1982, Journal of experimental psychology. Human perception and performance.

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

[21]  H. Pashler Dissociations and dependencies between speed and accuracy: Evidence for a two-component theory of divided attention in simple tasks , 1989, Cognitive Psychology.

[22]  F. G. Worden,et al.  The neurosciences : third study program , 1974 .

[23]  S. P. Springer,et al.  Left brain, right brain , 1981 .

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

[25]  D. Navon,et al.  Role of outcome conflict in dual-task interference. , 1987, Journal of experimental psychology. Human perception and performance.

[26]  H. Pashler,et al.  Saccadic Eye Movements and Dual-Task Interference , 1993, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[27]  Joseph B. Hellige,et al.  Lateralized interference in finger tapping: Comparisons of rate and variability measures under speed and consistency tapping instructions , 1986, Brain and Cognition.

[28]  A. Friedman,et al.  Dividing attention between the hands and the head: Performance trade-offs between rapid finger tapping and verbal memory. , 1988 .

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

[30]  M. Kinsbourne,et al.  Generalized and Lateralized Effects of Concurrent Verbalization on a Unimanual Skill , 1971 .

[31]  C. Eriksen,et al.  Temporal and spatial characteristics of selective encoding from visual displays , 1972 .

[32]  A. Osman,et al.  The effects of dual-task interference on movement-related brain potentials , 1990 .

[33]  J B Hellige,et al.  Information processing in the cerebral hemispheres: selective hemispheric activation and capacity limitations. , 1979, Journal of experimental psychology. General.

[34]  M. Kinsbourne,et al.  Does speech output control lateralize over time? Evidence from verbal-manual time-sharing tasks , 1980, Brain and Language.

[35]  R. Sperry Lateral specialization in the surgically separated hemispheres. , 1974 .

[36]  H Pashler,et al.  Making two responses to a single object: implications for the central attentional bottleneck. , 1992, Journal of experimental psychology. Human perception and performance.

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

[38]  Ariane Deluz,et al.  Bulletins et Mémoires de la Société d'Anthropologie de Paris , 1965 .

[39]  M. Hiscock Verbal-manual time sharing in children as a function of task priority , 1982, Brain and Cognition.

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