PMID- 31555188
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201001
IS  - 1664-1078 (Print)
IS  - 1664-1078 (Electronic)
IS  - 1664-1078 (Linking)
VI  - 10
DP  - 2019
TI  - Effects of Ego-Depletion and State Anxiety on Performance Changes in 
      Dart-Throwing Tasks: A Latent Curve Model Approach Reporting Trial Data for Human 
      Participants.
PG  - 2027
LID - 10.3389/fpsyg.2019.02027 [doi]
LID - 2027
AB  - This study examined the effects ego depletion (ED) and state anxiety (SA)have on 
      performance changes in dart-throwing, a perceptual-motor task, using a Latent 
      Curve Model (LCM). Twenty-two men, who had never played darts before, were 
      recruited and randomly assigned to two counterbalanced groups: Group A was 
      exposed first to ED and then to non-ED (NED), and Group B was exposed first to 
      NED and then to ED. We found that the number of trials had a non-linear effect on 
      darts performance, which improved as the number of trials increased before 
      declining again; that is, mean radial error decreased first and then increased. 
      Therefore, motor performance was sustained in the form of a quadratic curve as 
      the number of task executions increased. In general, the higher the degree of ED 
      and SA, the greater the negative effect on performance. However, this phenomenon 
      was observed only in the early-phase trials, and the interacting influence of ED 
      and SA appeared in the late-phase trials. Thus, this study demonstrated that ED 
      and SA have direct effects on performance curves in early-phase trials only, and 
      that their interacting influence appears in late-phase trials.
FAU - Yang, Jonghyun
AU  - Yang J
AD  - Department of Physical Education, Incheon National University, Incheon, South 
      Korea.
AD  - Sport Science Institute, Incheon National University, Incheon, South Korea.
FAU - Park, Kiwon
AU  - Park K
AD  - Department of Mechatronics Engineering, Incheon National University, Incheon, 
      South Korea.
AD  - Research Institute for Engineering and Technology, Incheon National University, 
      Incheon, South Korea.
FAU - Shin, Myoungjin
AU  - Shin M
AD  - Research Institute for Basic Sciences, Soonchunhyang University, Asan, South 
      Korea.
LA  - eng
PT  - Journal Article
DEP - 20190904
PL  - Switzerland
TA  - Front Psychol
JT  - Frontiers in psychology
JID - 101550902
PMC - PMC6742915
OTO - NOTNLM
OT  - dart-throwing
OT  - ego depletion
OT  - perceptual-motor task
OT  - performance change
OT  - state anxiety
EDAT- 2019/09/27 06:00
MHDA- 2019/09/27 06:01
PMCR- 2019/09/04
CRDT- 2019/09/27 06:00
PHST- 2019/05/01 00:00 [received]
PHST- 2019/08/20 00:00 [accepted]
PHST- 2019/09/27 06:00 [entrez]
PHST- 2019/09/27 06:00 [pubmed]
PHST- 2019/09/27 06:01 [medline]
PHST- 2019/09/04 00:00 [pmc-release]
AID - 10.3389/fpsyg.2019.02027 [doi]
PST - epublish
SO  - Front Psychol. 2019 Sep 4;10:2027. doi: 10.3389/fpsyg.2019.02027. eCollection 
      2019.