Psikoloji Bölümü Yayın Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.12416/417
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Article Anısal Bellekte Bilgilerin Kısa-süreli Konsolidasyonu: Dikkatin Rolü(2021) Ozcelik, Erol; Tekman, Hasan GürkanHızlı seri görsel sunum, dikkat kırpması, ve ikili görev bozulmaları olgularından elde edilen kanıtlar insanoğlunun kısa-süreli konsolidasyon sürecinde anlamlı bir sınırlılığı olduğunu öne sürmektedir. Kısa-süreli konsolidasyon, görsel temsillerin daha kalıcı bellek biçimlerine transfer edilmesidir. Yapılmış çalışmalar hedef uyaranlardan sonra gösterilen maskelerin bilgilerin konsolidasyonunu yarıda kestiğini göstermesine rağmen, bilgilerin anısal bellek için konsolidasyonunda dikkatin rolü hakkında yeterli kanıt yoktur. Dikkatin ve hedef uyaran ile maske arasındaki uyaran başlangıcı senkronizasyonsuzluğunun (UBS) anısal belleğe etkisini incelemek için üç deney yapılmıştır. Maskeler hedef uyaranlardan sonra değişen UBS'lerde sunulmuştur. Bölünmüş dikkat koşulundaki katılımcılar maskelerin sunumundan sonra dikkat gerektiren ikincil bir iş yaparken tam dikkat koşulundaki katılımcılara böyle bir görev verilmemiştir. Sonuçlar göstermiştir ki; hedef uyaranlar ile maskeler arasındaki UBS'yi düşürmek bölünmüş dikkatte bellek performansını düşürürken tam dikkatte performansı etkilememiştir. Bu bulgular kısa-süreli konsolidasyon sürecinde dikkatin gerekliliğini desteklemektedir.Article Citation - WoS: 2Citation - Scopus: 3The Mediating Role of Cognitive Flexibility in the Relationship Between Metacognition and Psychological Health: a Study in a Non-Clinical Sample(Kare Publ, 2021) Aydin, Oyku; Kaynak, HandeObjective: 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."Article Mediating Roles of Impulsivity and Risk-Taking in the Links of the Dark Triad With Flirting and Dating Via Social Media(Istanbul Univ, Fac Letters, dept Psychology, 2022) Demircioglu, Zeynep Isil; Goncu-Kose, AsliWith the acceleration of communication and access to information, individuals have begun to date via social networking sites. Although online dating has spread among university students recently, studies on this topic are very limited. The present study aimed to investigate the effects of the Dark Triad personality traits (i.e., Machiavellianism, psychopathy, and narcissism) on using Social Networking Sites (SNS) to find partners and face-to-face meeting/dating after flirting via the internet (i.e., face-to-face dating with a partner met via SNS). Furthermore, it was also aimed to identify the mediating roles of risk-taking and impulsivity in the relationships mentioned above. Data were collected from 358 University students (223 females and 135 males) who volunteered to complete the survey packages. The data was analyzed using Structural Equation Modeling (SEM). The age of the participants ranged between 18 and 49 (M = 22.67, SD = 2.83). The results revealed that narcissism was linked to using SNS to find partners, and impulsivity fully mediated the relationships of Machiavellianism with using SNS to find partners. In addition, the links of psychopathy with using SNS to find partners were partially mediated by impulsivity, with risk-taking fully mediating the effects of psychopathy and narcissism on face-to-face dating with a partner met via SNS. The present research revealed that impulsivity and risk-taking were the common attitudes underlying the links of psychopathy and narcissism with dating someone met via SNS. For individuals who score high on Machiavellianism, a low level of impulsivity is a protective factor; whereas a high level of impulsivity is a triggering factor that leads those with high psychopathy scores to search for partners via SNS. Contrary to expectations, narcissism was not directly associated with face-to-face dating a partner who was met via SNS. This finding may be related to the unidimensional measurement of narcissism, since grandiose narcissism is more likely to be positively associated with this risky and confident behavior, whereas vulnerable narcissism is less likely to have such an association.Article Kronik Ağrının Bellek Süreçleri Üzerindeki Etkilerinin Biyopsikososyal Model Çerçevesinde İncelenmesi(2022) Üste, Aleyna Nur; Kaynak, HandeEn yaygın ağrı türlerinden biri olan kronik ağrı, bellek güçlükleri gibi bilişsel becerilerde bozulma ile ilişkilendirilmektedir. Mevcut makale, kronik ağrısı olan hastaların belleğini biyolojik, psikolojik ve sosyal bileşenlerin nasıl etkilediğini inceleyen çalışmaların derlenmesini amaçlamaktadır. Araştırmalar, kronik ağrı hastalarının çoğunlukla bellek bozulmalarından şikâyet ettiğini ve biyopsikososyal modelin bu hastaların neden bellek şikayetleri yaşadıklarını daha iyi anlamak için yaygın olarak kullanıldığını göstermiştir. Biyopsikososyal model aynı zamanda her hastaya özgü müdahale modeli geliştirerek hastaların bilişsel ve davranışsal zorluklarla baş etmelerini sağlamaktadır. Birincisi, modelin biyolojik bileşeni, kronik ağrının hastalarda biyolojik değişikliklere neden olduğunu, dikkat ve bellek gibi bilişsel süreçleri olumsuz etkilediğini savunmaktadır. İkinci olarak, psikolojik bileşen, kronik ağrının neden olduğu depresyon ve anksiyete bozukluğu gibi komorbiditeleri tartışmakta ve bunların bellek performansını nasıl etkilediğini araştırmaktadır. Üçüncüsü, sosyal bileşen, hastaların artan sağlık hizmeti maliyetleri ve yetersiz uyku gibi çeşitli bozukluklara bağlı olarak kronik ağrının olumsuz etkilerini deneyimlediklerini öne sürmektedir. Çalışma, kronik ağrısı olan hastaların bellek performansının biyolojik, psikolojik, sosyal bileşenlerden etkilendiği ve bu bileşenlerin birbirleriyle etkileşime girerek bellekte bozulmalara neden olduğu sonucuna varmaktadır.Article Citation - WoS: 1Citation - Scopus: 1Direct and Indirect Relationships Between Cognitive Flexibility and Covid-19 Related Psychological Distress: the Mediating Role of Maladaptive Cognitive Emotion Regulation Strategies(Klinik Psikiyatri dergisi, 2022) Sayinta, Senanur; Kocak, Hatice Nur; Kaynak, HandeObjective: The effects of the COVID-19 pandemic are remarkable on individuals' mental health. During the COVID-19 pandemic, there is an increase in mental health problems and psychological distress in uninfected healthy people. The present study aimed to examine the mediator role of maladaptive cognitive emotion regula-tion strategies in the relationship between cognitive fle-xibility and COVID-19 related psychological distress experienced during the current pandemic. Method: The sample consisted of 351 young adults (86% female and 14% male) who were not infected with COVID-19 aged between 18 to 25 years old. Participants completed the self-report questionnaires, including the Cognitive Flexibility Inventory, Cognitive Emotion Regulation Questionnaire, and COVID-19 Related Psychological Distress Scale. Mediation analysis estimated total, indi-rect, and direct effects between cognitive flexibility and COVID-19 related psychological distress. Results: The correlation analyses showed that cognitive flexibility -control dimension was negatively associated with both COVID-19 related psychological distress and maladaptive cognitive emotion regulation strategies. Also, maladap-tive cognitive emotion regulation strategies and COVID-19 related psychological distress was found to be posi-tively correlated. In the study sample, the results of the bootstrap mediation indicated that maladaptive cogni-tive emotion regulation strategies, including self-blame, acceptance, rumination, catastrophizing, and blaming others, fully mediated the relationship between cogni-tive flexibility -control and COVID-19 related psycholog-ical distress. Discussion: Our findings would help psy-chological interventions designed for COVID-19 unin-fected healthy people who have lower-level cognitive flexibility -control dimension by highlighting the promi-nence that the fewer people use maladaptive cognitive emotion regulation strategies, the less they feel COVID-19 related psychological distress.Article Bölüm Seçimine Göre Karanlık Üçlü ve Büyük Beşli Kişilik Özelliklerinin İncelenmesi(2020) Ekren, Buse; Göncü-köse, AslıKaranlık Üçlü (KÜ) kişilik özellikleri, birbirleriyle ilişkili kişilik özelliklerinden Makyavelizm, narsisizm ve psikopatiyi kapsamaktadır ve araştırmalar KÜ kişilik özelliklerinde yüksek skor alan bireylerin bu kişilik özelliklerine uygun olan ödüllere/çıktılara ulaşmalarını sağlayacak meslekler seçme eğiliminde olduklarını göstermektedir. Bu bulgular ve önermeyle uyumlu olarak, KÜ kişilik özelliklerinin üniversite öğrencilerinin bölüm tercihlerini etkileyeceği önerilmektedir. Önceki araştırmalar Büyük Beşli (BB) kişilik özelliklerinin de eğitim tercihlerini etkilediğini göstermektedir. Bu çalışmanın temel amacı, kariyer seçimlerinde bu kişilik özelliklerine bağlı olarak yapılan öz-seçimlerin etkili olup olmadığını araştırmaktır. Veri, Türkiye’de yedi farklı alanda (psikoloji, hukuk, iktisat/işletme, mühendislik, siyaset bilimi, tıp ve eğitim bilimleri) henüz eğitime başlamış 659 (359 kadın) üniversite öğrencisinden toplanmıştır. Grupların değişkenlerdeki ortalamaları KÜ ve BB kişilik özelliklerinin bağımlı değişken olduğu 2 (cinsiyet)×7 (bölüm) varyans analizi yöntemiyle karşılaştırılmıştır. Sonuçlar, iktisat/işletme ve mühendislik öğrencilerinin Makyavelizm skorlarının psikoloji öğrencilerinin skorlarından daha yüksek olduğunu; ayrıca, mühendislik, iktisat/işletme ve siyaset bilimi öğrencilerinin psikopati skorlarının psikoloji öğrencilerinin skorlarından yüksek olduğunu göstermiştir. Psikoloji öğrencilerinin nevrotizm skorlarının, mühendislik, iktisat/işletme ve siyaset bilimi öğrencilerinin skorlarından daha yüksek olduğu bulunmuştur. Hukuk ve eğitim fakültesi öğrencilerinin nevrotiklik skorları da mühendislik ve iktisat/işletme öğrencilerinin skorlarından daha yüksektir. Son olarak, sonuçlar deneyime açıklık ve dürüstlük kişilik özellikleri için bölüm ve cinsiyetin etkileşim etkisinin olduğunu göstermiştir. Bulgular, kuramsal ve uygulamaya yönelik çıkarımlar ile gelecekteki araştırmalar için öneriler bağlamında tartışılmıştır.Article Remembered or Forgotten Stimuli: a Functional Magnetic Resonance Imaging Study on the Effects of Emotion(Kare Publ, 2020) Kilic, Betul; Ozcelik, ErolObjective: The first aim of this study is to examine why emotional events enhance memory for preceding stimuli. The second goal is to identify brain regions associated with remembering and forgetting by finding brain activation differences during encoding of remembered and forgotten stimuli. The third goal is to examine which brain areas are activated when studying emotional pictures compared to neutral ones. Method: In each trial, a picture of an object followed by an emotional or neutral picture from the Turkish culture were presented to 15 volunteers. The effect of the succeeding pictures on the remembering of preceding stimuli was examined. The participants studied the stimuli in the magnetic resonance scanner and, meanwhile, brain images were taken. The memory performances of the participants were measured with the recognition test administered one week later. Results: Behavioral results suggest that emotion has no effect on memory for preceding stimuli. Functional magnetic resonance imaging results indicate that remembered stimuli compared to forgotten ones caused more activation in left inferior frontal gyrus and left superior medial gyrus. Emotional pictures create more activation in the - mid-temporal gyrus and supramarginal gyrus compared to neutral images. Conclusion: Brain structures in which activations are observed in remembered stimuli compared to forgotten ones (left inferior frontal gyrus and left superior medial gyrus) are responsible for the semantic elaboration and associative memory formation. Thus, it can be concluded that object pictures are remembered because they are processed more deeply. Besides, activations are observed in the areas known to be related to the processing of emotional face expressions when emotional and neutral pictures are compared.Article Citation - WoS: 11Citation - Scopus: 12Relationship of Internet Gaming Disorder Severity With Symptoms of Anxiety, Depression, Alexithymia, and Aggression Among University Students(Kare Publ, 2019) Evren, Cuneyt; Evren, Bilge; Dalbudak, Ercan; Topcu, Merve; Kutlu, NilayObjective: The aim of the present study was to evaluate the relationship of Internet gaming disorder severity with alexithymia and aggression among university students, while controlling for effects of anxiety and depressive symptoms. Method: The study was conducted with an online survey among 987 volunteer university students in Ankara. Participants were evaluated by administering the Toronto Alexithymia Scale (TAS-20), the Buss-Perry Aggression Questionnaire (BPAQ), the Internet Gaming Disorder Scale-Short-Form (IGDS9-SF), and the depression and anxiety subscales of the 90-Item Symptom Checklist-Revised (SCL-90-R). Results: Scores for the different scales mildly correlated with one other. In hierarchical linear regression analysis, both alexithymia (particularly the dimensions "difficulty identifying feelings" [DIF] and "externally-oriented thinking" [EOT]) and aggression (physical aggression) predicted the severity of Internet gaming disorder symptoms, together with severity of depressive symptoms. Conclusion: These findings suggest that among university students, the severity of alexithymia, particularly in its dimensions DDF and EOT, is related with the severity of Internet gaming disorder, together with aggression, particularly physical aggression, and depression.Article Citation - WoS: 16Citation - Scopus: 16Severity of Dissociative Experiences and Emotion Dysregulation Mediate the Relationship Between Childhood Trauma and Internet Addiction Symptom Severity Among Young Adults(Kare Publ, 2019) Evren, Cuneyt; Evren, Bilge; Dalbudak, Ercan; Topcu, Merve; Kutlu, Nilay; Elhai, Jon D.Objective: The first aim of the present study was to evaluate the relationship between childhood trauma and Internet addiction (IA) symptom severity. The second aim was to evaluate the mediator effects of dissociative experiences and emotion dysregulation on this relationship. Method: We conducted the study using an online survey with 920 university student participants. Participants were evaluated with the Internet Addiction Test (IAT), Dissociative Experiences Scale (DES), Childhood Trauma Questionnaire (CTQ-28), and Difficulties in Emotion Regulation Scale (DERS). Results: Compared with participants evidencing low IA risk (n=806, 87.6%), those with high IA risk (n=114, 12.4%) had a longer duration of daily Internet use and a higher rate of problems related to Internet use. The high IA risk group was connected to the Internet less through a smartphone and more through computer use. In addition, scale scores (DES, DERS and CTQ-28) were higher among the group with high IA risk. Scale scores were mildly to moderately correlated with each other. In linear regression analysis, childhood trauma (particularly emotional abuse and physical neglect) was related to severity of IA symptoms. Severity of dissociative experiences and emotion dysregulation mediated the childhood trauma-IA symptom relationship. Conclusion: These findings suggest relations between the severity of childhood trauma, particularly emotional abuse and physical neglect dimensions, and severity of IA symptoms among Turkish young adults. Severity of dissociative experiences and emotion dysregulation may also partially mediate this relationship.Article Citation - WoS: 12Citation - Scopus: 12Psychometric Validation of the Turkish Ten-Item Internet Gaming Disorder Test (igdt-10)(Kare Publ, 2020) Evren, Cuneyt; Evren, Bilge; Dalbudak, Ercan; Topcu, Merve; Kutlu, NilayObjective: The main aims of the current study were to test the factor structure, reliability and validity of the Ten-Item Internet Gaming Disorder Test (IGDT-10), a standardized measure to assess symptoms and prevalence of internet gaming disorder (IGD). Method: In the present study, participants were assessed with the IGDT-10, the nine-item IGD Scale - Short Form (IGDS9-SF), and the Motives for Online Gaming Questionnaire (MOGQ). Results: Confirmatory factor analysis showed that the IGDT-10's one-factor structure (i.e., dimensional structure) was satisfactory. The scale was also reliable (i.e., internally consistent with a Cronbach's alpha of 0.79) and showed adequate convergent and criterion-related validity as shown by positive correlations between average daily time spent playing games over the past year and IGDS9-SF and MOGQ scores. By applying the DSM-5 threshold to diagnose IGD (meeting at least five criteria), the incidence of individuals with IGD was found to be 7.4% (n=56) in the entire sample. Conclusion: These results demonstrate the Turkish version of the IGDT-10 to be a valid and reliable instrument for determining the magnitude of problems associated with IGD among young adults and for early diagnosis of IGD in clinical environments and comparable studies.