Intensity and direction dimensions of competitive state anxiety: Relationship to performance through the time-to-event paradigm

2003 ◽  
Author(s):  
Nektarios A. Stavrou ◽  
Maria Psychountaki ◽  
Yannis Zervas
Keyword(s):  
State Anxiety ◽  
Time To Event

Intensity and Direction Dimensions of Competitive State Anxiety: A Time-to-Event Approach

2006 ◽  
Vol 103 (1) ◽  
pp. 91-98 ◽  
Author(s):  
Nektarios A. Stavrou ◽  
Maria Psychountaki ◽  
Yannis Zervas
Keyword(s):  
State Anxiety ◽  
Time To Event

Effects of Fear Induction on Heart Period Variability

1999 ◽  
Vol 13 (1) ◽  
pp. 18-26 ◽  
Author(s):  
Rudolf Stark ◽  
Alfons Hamm ◽  
Anne Schienle ◽  
Bertram Walter ◽  
Dieter Vaitl
Keyword(s):  
Blood Pressure ◽  
Trait Anxiety ◽  
State Anxiety ◽  
Self Report ◽  
Emotional States ◽  
Heart Period ◽  
Experimental Conditions ◽  
Heart Period Variability ◽  
Physiological Variables ◽  
Period Variability

Abstract The present study investigated the influence of contextual fear in comparison to relaxation on heart period variability (HPV), and analyzed differences in HPV between low and high anxious, nonclinical subjects. Fifty-three women participated in the study. Each subject underwent four experimental conditions (control, fear, relaxation, and a combined fear-relaxation condition), lasting 10 min each. Fear was provoked by an unpredictable aversive human scream. Relaxation should be induced with the aid of verbal instructions. To control for respiratory effects on HPV, breathing was paced at 0.2 Hz using an indirect light source. Besides physiological measures (HPV measures, ECG, respiration, forearm EMG, blood pressure), emotional states (pleasure, arousal, dominance, state anxiety) were assessed by subjects' self-reports. Since relaxation instructions did not have any effect neither on the subjective nor on the physiological variables, the present paper focuses on the comparison of the control and the fear condition. The scream reliably induced changes in both physiological and self-report measures. During the fear condition, subjects reported more arousal and state anxiety as well as less pleasure and dominance. Heart period decreased, while EMG and diastolic blood pressure showed a tendency to increase. HPV remained largely unaltered with the exception of the LF component, which slightly decreased under fear induction. Replicating previous findings, trait anxiety was negatively associated with HPV, but there were no treatment-specific differences between subjects with low and high trait anxiety.

State Anxiety Measure

2009 ◽  
Author(s):  
Andrea R. Ashbaugh ◽  
Adam S. Radomsky
Keyword(s):  
State Anxiety
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