PMID- 9810681
OWN - NLM
STAT- MEDLINE
DCOM- 19981201
LR  - 20220309
IS  - 0340-1200 (Print)
IS  - 0340-1200 (Linking)
VI  - 79
IP  - 3
DP  - 1998 Sep
TI  - Multiple synchronization strategies in rhythmic sensorimotor tasks: phase vs 
      period correction.
PG  - 241-50
AB  - To characterize synchronisation strategies in the tracking of auditory rhythm 
      with rhythmic finger tapping, the adaptation process after unexpected step 
      changes of an interstimulus interval (ISI) of 500 ms was investigated. Step 
      changes of 2% (10 ms), 4% (20 ms), and 10% (50 ms) of ISI were applied to the 
      stimulus sequence. Synchronisation patterns of 5 subjects were analyzed based on 
      synchronisation error (SE) and interresponse intervals (IRI). A strategy shift 
      contigent upon the size of the introduced step change was detected. After small 
      ISI changes, rapid IRI matching to the new ISI was accompanied by temporarily 
      enlarged SE values, which slowly returned to preferred SE values before the step 
      change. Large ISI changes showed quick SE adaptations accompanied by a temporary 
      overcorrection of IRI. Response asymmetry between ISI decreases and increases 
      emerged, showing a stronger adaptation during ISI increases. A two-dimensional 
      difference equation was formulated to simulate the time series of intertap 
      intervals and explain the control process during IRI and SE adjustments. The 
      system constants were optimized to minimalize the deviations between the computed 
      and the observed response trajectories, consisting of the time series of SE and 
      IRI. It was shown that a successful model fit using a linear two-dimensional 
      difference equation was based on the size and direction of the ISI changes. 
      MANOVA procedures showed that differences in equation parameters during small and 
      large step changes were statistically significant (P < 0.05). It is therefore 
      suggested that a uniform model accounting for synchronization responses to all 
      step changes would require the introduction of nonlinear system properties.
FAU - Thaut, M H
AU  - Thaut MH
AD  - Department of Music, Colorado State University, Fort Collins 80523, USA. 
      mthaut@lamar.colostate.edu
FAU - Miller, R A
AU  - Miller RA
FAU - Schauer, L M
AU  - Schauer LM
LA  - eng
PT  - Journal Article
PL  - Germany
TA  - Biol Cybern
JT  - Biological cybernetics
JID - 7502533
SB  - IM
MH  - Acoustic Stimulation
MH  - Adult
MH  - Cybernetics
MH  - Female
MH  - Humans
MH  - Male
MH  - Models, Biological
MH  - Movement/physiology
MH  - Periodicity
MH  - Psychomotor Performance/*physiology
MH  - Time Factors
EDAT- 1998/11/12 00:00
MHDA- 1998/11/12 00:01
CRDT- 1998/11/12 00:00
PHST- 1998/11/12 00:00 [pubmed]
PHST- 1998/11/12 00:01 [medline]
PHST- 1998/11/12 00:00 [entrez]
AID - 10.1007/s004220050474 [doi]
PST - ppublish
SO  - Biol Cybern. 1998 Sep;79(3):241-50. doi: 10.1007/s004220050474.