Attentional influences on the performance of secondary physical tasks during posture control.
We examined the influence of attentional focus and cognitive load on motor performance in a dynamic stick balancing task during the maintenance of upright posture. Dynamical analyses of postural fluctuations revealed the existence of a drift and correct mechanism, with correlational structure reflecting the demands of the stick balancing task. In contrast, experimentally manipulated attentional foci (internal, external) did not influence the variability of postural or fingertip trajectories. However, dual-task cognitive stick balancing performance resulted in decreased variability of postural and fingertip time series. These results are discussed in the context of dual timescale models for posture control and stick balancing.
Cluff
Tyler
T
Sensorimotor Neuroscience Laboratory, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 2K1, Canada.
Gharib
Taher
T
Balasubramaniam
Ramesh
R
D000328:Adult; D000704:Analysis of Variance; D001288:Attention / Q000502:physiology*; D005260:Female; D005385:Fingers / Q000294:innervation; D006801:Humans; D016014:Linear Models; D008297:Male; D009068:Movement / Q000502:physiology*; D004856:Postural Balance / Q000502:physiology; D011187:Posture / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D013057:Spectrum Analysis; D013997:Time Factors; D055815:Young Adult
Chaos. 2009 Jun;19(2):026110
19566270
Exp Brain Res. 1993;97(1):139-44
8131825
Cognition. 2002 Mar;83(2):B25-34
11869727
Gait Posture. 2003 Aug;18(1):29-34
12855298
Phys Ther. 2006 Aug;86(8):1151-60
16879049
Exp Brain Res. 2001 Nov;141(1):33-51
11685409
Exp Brain Res. 1997 Oct;117(1):165-70
9386016
Hum Mov Sci. 2003 Aug;22(3):253-70
12967757
Gait Posture. 2000 Feb;11(1):12-24
10664481
Front Physiol. 2010 Jul 06;1:15
21423358
Q J Exp Psychol A. 2001 Nov;54(4):1143-54
11765737
J Neurophysiol. 2006 Sep;96(3):1530-46
16775203
Prog Brain Res. 2007;165:299-321
17925254
Hum Mov Sci. 2002 Jul;21(2):187-202
12167298
Nat Neurosci. 2002 Nov;5(11):1226-35
12404008
Gait Posture. 2005 Dec;22(4):322-30
16274914
J Exp Psychol Appl. 2002 Mar;8(1):6-16
12009178
J Physiol. 2006 Nov 15;577(Pt 1):403-16
16959857
Gait Posture. 2001 Dec;14(3):248-55
11600328
J Clin Neurophysiol. 2004 May-Jun;21(3):134-43
15375344
Curr Biol. 2003 Jul 1;13(13):R531-9
12842033
Neurosci Lett. 2009 Oct 23;464(2):88-92
19699264
Psychol Res. 2003 Feb;67(1):22-9
12589447
Philos Trans A Math Phys Eng Sci. 2009 Mar 28;367(1891):1181-93
19218158
Neuroreport. 1999 Feb 5;10(2):215-9
10203311
J Mot Behav. 2004 Jun;36(2):189-99
15130869
Brain Res Bull. 2002 May;58(1):135-9
12121823
PLoS One. 2009 Jun 22;4(6):e5998
19543399
Trends Cogn Sci. 2005 Apr;9(4):188-94
15808501
Methods. 2008 Aug;45(4):336-41
18762138
Trends Cogn Sci. 2002 Dec 1;6(12):531-536
12475714
Q J Exp Psychol A. 2003 Oct;56(7):1191-211
12959910
Gait Posture. 1999 Mar;9(1):65-78
10575072
PLoS One. 2009 Oct 20;4(10):e7427
19841741
Psychon Bull Rev. 2001 Dec;8(4):648-60
11848583
J Gerontol B Psychol Sci Soc Sci. 2009 Mar;64(2):193-201
19255088
J Mot Behav. 2002 Jun;34(2):99-125
12057885
Gerontology. 2003 Jul-Aug;49(4):225-32
12792157
Neurophysiol Clin. 2008 Dec;38(6):363-73
19026957
Phys Rev Lett. 1994 Aug 1;73(5):764-767
10057531
Chaos. 1995 Mar;5(1):57-63
12780156