Programming sequences of hand postures.

The extent to which complex skills are programmed before movement is a concern for research in motor control. This study investigates a model which maintains that after a motor program is constructed, only the first response in a sequence is programmed prior to movement (Sternberg, Monsell, Knoll, & Wright, 1978). In a simple reaction time paradigm, subjects executed sequences of hand postures that varied in length, the number of different hand postures, and the location of a hand posture transition. For sequences containing repetitions of the same hand posture, sequence length had a small effect on RT when the number of responses ranged between two and five (Experiment 1) and no effect when the number of responses ranged between three and five (Experiment 2). For sequences containing clearly different hand postures, Experiment 2 showed that RT was influenced by the type of hand posture beyond the first response. The analysis of interresponse times suggested that the first two responses were completely preprogrammed before movement. These results were consistent with a model in which responses are hierarchically organized and some but not all information about each response in the sequence is preprogrammed before movement execution.

[1]  Saul Sternberg,et al.  The discovery of processing stages: Extensions of Donders' method , 1969 .

[2]  K. Haaland,et al.  The different types of limb apraxia errors made by patients with left vs. right hemisphere damage , 1984, Brain and Cognition.

[3]  M G Fischman,et al.  Programming time as a function of number of movement parts and changes in movement direction. , 1984, Journal of motor behavior.

[4]  D. Gajdusek,et al.  The clinical characteristics of transmissible Creutzfeldt-Jakob disease. , 1973, Brain : a journal of neurology.

[5]  A. Sanders.  20 Stage Analysis of Reaction Processes , 1980 .

[6]  G. V. Galen,et al.  35 Handwriting and Drawing: A Two Stage Model of Complex Motor Behavior , 1980 .

[7]  Richard J. Harris.  A primer of multivariate statistics , 1975 .

[8]  Gerard P. van Galen,et al.  Programming in handwriting: Reaction time and movement time as a function of sequence length , 1983 .

[9]  S. T. Klapp,et al.  Motor programming within a sequence of responses. , 1976, Journal of motor behavior.

[10]  S. T. Klapp,et al.  Implicit speech in reading: Reconsidered , 1973 .

[11]  G. W. Jason.  Performance of manual copying tasks after focal cortical lesions , 1986, Neuropsychologia.

[12]  D. G. MacKay.  The Problems of Flexibility, Fluency, and Speed-Accuracy Trade-Off in Skilled Behavior. , 1982 .

[13]  Stephen Monsell,et al.  The Latency and Duration of Rapid Movement Sequences: Comparisons of Speech and Typewriting , 1978 .

[14]  A. Gordon,et al.  Choosing between movement sequences: A hierarchical editor model. , 1984 .

[15]  L. Shaffer.  Intention and performance. , 1976 .

[16]  N. Geschwind,et al.  Apraxia and agraphia in a left-hander. , 1973, Brain : a journal of neurology.

[17]  J. Duncan.  Response Selection Errors in Spatial Choice Reaction Tasks , 1977 .

[18]  S. T. Klapp,et al.  Relation between programming time and duration of the response being programmed. , 1976, Journal of experimental psychology. Human perception and performance.

[19]  F M Henry,et al.  Use of simple reaction time in motor programming studies: a reply to Klapp, Wyatt and Lingo. , 1980, Journal of motor behavior.

[20]  Andrew Kertesz,et al.  Praxis and language: The extent and variety of apraxia in aphasia , 1982, Neuropsychologia.

[21]  D. Kimura,et al.  Left-hemisphere control of oral and brachial movements and their relation to communication. , 1982, Philosophical transactions of the Royal Society of London. Series B, Biological sciences.

[22]  D. Ostry.  27 Execution-Time Movement Control , 1980 .

[23]  F. M. Henry,et al.  Increased Response Latency for Complicated Movements and A “Memory Drum” Theory of Neuromotor Reaction , 1960 .

[24]  J. Kelso,et al.  Are movements prepared in parts? Not under compatible (naturalized) conditions. , 1980, Journal of experimental psychology. General.

[25]  D. Kimura,et al.  Acquisition of a motor skill after left-hemisphere damage. , 1977, Brain : a journal of neurology.

[26]  Gerard P. van Galen,et al.  The independent monitoring of form and scale factors in handwriting , 1983 .

[27]  David A. Rosenbaum,et al.  Stimulus-response compatibility and motor programming of manual response sequences , 1984 .

[28]  D. Rosenbaum.  Human movement initiation: specification of arm, direction, and extent. , 1980, Journal of experimental psychology. General.

[29]  G. W. Jason.  Manual sequence learning after focal cortical lesions , 1985, Neuropsychologia.

[30]  S. T. Klapp,et al.  Simple and choice reaction time methods in the study of motor programming. , 1979, Journal of motor behavior.

[31]  D. Rosenbaum.  The Movement Precuing Technique: Assumptions, Applications, and Extensions , 1983 .

[32]  Timothy A. Salthouse,et al.  The Skill of Typing. , 1984 .

[33]  R. W. Pew,et al.  Human perceptual-motor performance , 1974 .

[34]  Hans-Leo Teulings,et al.  RESPONSE CHARACTERISTICS OF PREPARED AND RESTRUCTURED HANDWRITING , 1983 .