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Comparison of Hemodynamic Responses in the Prefrontal Cortex According to Differences in Self-Efficacy.
- Source :
-
Biological Research for Nursing . Jul2017, Vol. 19 Issue 4, p450-455. 6p. - Publication Year :
- 2017
-
Abstract
- Although self-efficacy has been used extensively in the field of nursing (e.g., as an outcome measure of nursing interventions), its underlying nature is poorly understood. Investigation of the relationship between self-efficacy and brain activation will help explain the fundamental nature of self-efficacy. In this study, we compared prefrontal activation measured with near-infrared spectroscopy (NIRS) across 89 undergraduate students categorized into three groups based on their General Self-Efficacy Scale scores: low self-efficacy (n = 59), moderate self-efficacy (n = 17), and high self-efficacy (n = 13). Changes in the hemoglobin levels of the prefrontal cortex (PFC) during a verbal fluency task were assessed using two-channel NIRS. Significant differences in the oxygenated hemoglobin (oxy-Hb) level of the left PFC (LPFC) were observed via analysis of variance. Post hoc Tukey’s test showed a significant difference only between low self-efficacy and moderate self-efficacy groups. We found a medium between-group effect size in the moderate self-efficacy group versus the low self-efficacy group for the changes in oxy-Hb levels of the LPFC (d = .78; 95% confidence interval for effect size [0.22, 1.33]). No significant between-group differences were observed with respect to changes in the oxy-Hb in the right PFC. The results indicate less left prefrontal activation in the low self-efficacy group than in the moderate self-efficacy group. These findings provide evidence to support the fundamental nature of self-efficacy. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ANALYSIS of variance
*CEREBRAL circulation
*CEREBRAL cortex
*CHI-squared test
*CONFIDENCE intervals
*ELECTROENCEPHALOGRAPHY
*HEMODYNAMICS
*HEMOGLOBINS
*INFRARED spectroscopy
*RESEARCH funding
*SELF-efficacy
*STATISTICS
*DATA analysis
*EFFECT sizes (Statistics)
*UNDERGRADUATES
*CROSS-sectional method
*DATA analysis software
Subjects
Details
- Language :
- English
- ISSN :
- 10998004
- Volume :
- 19
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Biological Research for Nursing
- Publication Type :
- Academic Journal
- Accession number :
- 123676629
- Full Text :
- https://doi.org/10.1177/1099800417706141