Browsing by Author "Aydin, Oyku"

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Citation - WoS: 0
Do "cold" Cognitive or "hot" Emotional Factors Explain Consolidation in Post-Learning Stress
(John Wiley & Sons Ltd, 2023) Ozcelik, Erol; Aydin, Oyku; Cengil, Betul B.; Tuncol, Aleyna S.
Citation - WoS: 0
Citation - Scopus: 0
The Effects of Physiological Stress on Learning Instructional Materials
(Editura Univ Oradea, 2022) Tuncol, Aleyna Su; Cengil, Betul Beyza; Aydin, Oyku; Kaynak, Hande; Ozcelik, Erol
Psychophysiological studies have shown that stress can both enhance and impair learning. However, there is not enough research on the effects of stress on learning ecologically valid materials. Considering this need, the goal of the current study is to examine the effects of physiological stress on learning instructional materials. Thirty-eight healthy participants held their hands in either ice-cold water (cold pressor stress group) or warm water (control group) for three minutes after studying the instructional material. Learning was assessed by recall and recognition tests given on the following day. The results showed that physiological stress impaired recall but did not affect recognition, suggesting that extreme stress levels had a detrimental effect on learning tests that rely on self-initiated cues.
Citation - WoS: 0
Losing the Life: A Review on Autobiographical Memory in Alzheimer's Disease
(Istanbul Univ, Fac Letters, dept Psychology, 2021) Aydin, Oyku; Cengil, Betul Beyza; Kaynak, Hande; 101097
Alzheimer's disease (AD), the most common type of dementia among older adults, is a progressive and neurodegenerative brain disease. AD is characterized by progressive memory impairments, but not other types of dementia. Autobiographical memory (AM) is defined as episodes recollected from individuals' life, and it is one of the memory systems impaired in AD. One consequence of AM decline in AD is difficulties in the retrieval of recent AMs rather than past ones. AM contains both episodic and semantic components, and it is crucial for self-concept. The aim of the present study is to review the current understanding of AM in people with AD. In the introduction part of the review, AD and its cognitive correlates are presented in detail, with how AM performance is important for the self. In the second part of the review, AM deteriorations in patients with AD are discussed. Factors, such as emotion and olfaction, affecting AM are mentioned along with the neural substrates. In this regard, the effect of the emotional dimension (e.g., valence) on the formation and retrieval of AMs is discussed and how AM is studied with olfactory stimuli is presented, respectively. Studies on the link between AM and emotion have shown that there is a positive shift of AM in AD, indicating that patients with AD remember their AMs more positively. In addition, olfactory stimuli evoke more AMs than verbal and visual stimuli. The conclusion section of the current review is devoted to some recommendations that might guide future research. For instance, stage-by-stage investigation of AM in AD and the comparison of them in relation to relevant variables could be one way of providing detailed findings on the nature of AM in AD.
Citation - WoS: 2
Citation - Scopus: 3
The mediating role of cognitive flexibility in the relationship between metacognition and psychologicalhealth:Astudyinanon-clinicalsample
(Kare Publ, 2021) Aydin, Oyku; Kaynak, Hande; 101097
Objective: Metacognition is a concept that refers to the awareness and control of individuals' cognitive processes. In this regard, metacognitive processes may promote cognitive flexibility. The present study investigates the impact of metacognitions on adults' psychological health and the mediating role of cognitive flexibility through bootstrap analysis. Method: The sample comprised of 212 university students. All volunteers had no history of psychiatric/neurological disorders and no use of medication affecting the central nervous system for the last six months. Participants were required to complete the Metacognitions Questionnaire-30, the General Health Questionnaire- 12, and the Cognitive Flexibility Inventory via an online survey. Results: According to the correlation analyses, cognitive flexibility was found to be negatively correlated with dysfunctional metacognition (r=-0.227, p<0.01) and poor psychological health (r=-0.397, p<0.01); dysfunctional metacognition was positively correlated with poor psychological health (r=0.399, p<0.01). We conducted mediation analyses via the bootstrapping method using a 95% confidence interval and 5000 bootstrap samples. The results showed that cognitive flexibility had a significant partial mediating role in the relationship between metacognition and psychological health [R-2=0.26, F(2, 209)=36.38, p<0.001]. Conclusion: The findings highlighted the importance of cognitive flexibility as an underlying mechanism through the relationship between metacognition and psychological health in a non-clinical sample. The results suggested the need to take "cognitive health" into account while attempting to promote "psychological health."