臺灣博碩士論文加值系統

Working memory capacity (WMC) is a form of cognitive control that involves the active maintenance and executive processing of information. Also, working memory capacity (WMC) reflect ability in controlling attention and served as shield from distracters in environment. Previous work suggests that working memory capacity might be influenced by emotional states. Some researchers found that WMC increased under the influence of positive emotions; meanwhile, others suggest that positive emotions have impairment on WMC. Not considering the effect initial WMC was suspected to be accounted for the mixed results of the association between emotion and working memory capacity. Thus, to modify the past model of investigating emotional effect on working memory capacity (WMC), the model in current study was extended by considering the individual difference baseline on high-WMC and low-WMC. The result revealed that working memory capacity was enhanced for low-WMC individuals in the positive emotional state, but not for high-WMC individuals. This finding may suggest that positive emotions are advantageous for low-WMC individuals while they are conducting cognitive task, relying on the working memory capacity.

Chapter1 Introduction
Background ................................................................................................................7
Related literature review………………………………………………………12
1.1 Low-WMC and high-WMC have different abilities in attentional control for shielding from emotional stimuli………………………..12
1.2 The Role of emotion on cognitive processing...................................14
1.3 Positive vs. negative emotion on working memory capacity (WMC)………………………………………………………………...15
1.4 Manipulation of emotion and measures for working memory
Capacity17
1.41 Manipulation of emotion.......................................................17
1.42 Measures for working memory capacity (WMC)………...21
Current study………………………………………………………………………27
Chapter 2 Method………………………………………………………….28
2.1 Participants……………………………………………………………….28
2.2 Materials.....................................................................................................29
Questionnaire: The Positive Affect Negative Affect Schedule (PANAS)……………………………………………………….30
Measurement of working memory capacity……………….......31
Emotion induction……………………………………………..32
2.3 Design……………………………………………………………………35
2.4 Procedure.................................................................................................35
Chapter 3 Results……………………………………………………………..37
3.1 Preliminary analyses………………………………………………...37
3.2 Data analyses…………………………………………………………...40
3.21 Manipulation check for emotional induction.........................40
3.22 Effect of emotional state on working memory capacity among
low-WMC and high-WMC individuals……………………..44

Chapter 4 Discussion……………………………………………………...45
4.1 Summary of findings………………………………………………..45
4.2 Limitations...........................................................................................51
4.3 Clinical implication............................................................................52
Appendix A Scale of PANAS…………………………………………………….53
References…………………………………………………………………………………54

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