Gökçe, Ahu
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G.,Ahu
AHU GÖKÇE
Ahu GÖKÇE
G., Ahu
GÖKÇE, AHU
Gökçe, Ahu
Gökçe, AHU
A. Gökçe
Gokce,Ahu
Ahu, Gokce
GÖKÇE, Ahu
Gokce,A.
Gökçe,A.
Gökçe, A.
Ahu Gökçe
Gokce, Ahu
AHU GÖKÇE
Ahu GÖKÇE
G., Ahu
GÖKÇE, AHU
Gökçe, Ahu
Gökçe, AHU
A. Gökçe
Gokce,Ahu
Ahu, Gokce
GÖKÇE, Ahu
Gokce,A.
Gökçe,A.
Gökçe, A.
Ahu Gökçe
Gokce, Ahu
Job Title
Doç. Dr.
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Main Affiliation
Psychology
Status
Current Staff
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Sustainable Development Goals
15
LIFE ON LAND
0
Research Products
16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
Research Products
14
LIFE BELOW WATER
0
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6
CLEAN WATER AND SANITATION
0
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3
GOOD HEALTH AND WELL-BEING
1
Research Products
17
PARTNERSHIPS FOR THE GOALS
0
Research Products
4
QUALITY EDUCATION
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Research Products
2
ZERO HUNGER
0
Research Products
10
REDUCED INEQUALITIES
0
Research Products
7
AFFORDABLE AND CLEAN ENERGY
0
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13
CLIMATE ACTION
0
Research Products
1
NO POVERTY
0
Research Products
9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
0
Research Products
12
RESPONSIBLE CONSUMPTION AND PRODUCTION
0
Research Products
8
DECENT WORK AND ECONOMIC GROWTH
0
Research Products
11
SUSTAINABLE CITIES AND COMMUNITIES
0
Research Products
5
GENDER EQUALITY
0
Research Products
Documents
12
Citations
99
h-index
6
Documents
0
Citations
0
Scholarly Output
18
Articles
14
Views / Downloads
242/1964
Supervised MSc Theses
3
Supervised PhD Theses
0
WoS Citation Count
44
Scopus Citation Count
71
WoS h-index
4
Scopus h-index
6
Patents
0
Projects
0
WoS Citations per Publication
2.44
Scopus Citations per Publication
3.94
Open Access Source
13
Supervised Theses
3
| Journal | Count |
|---|---|
| Advances in Cognitive Psychology | 3 |
| Nesne Dergisi | 2 |
| Frontiers in Psychology | 2 |
| Attention Perception & Psychophysics | 1 |
| Psikoloji Çalışmaları / Studies in Psychology | 1 |
Current Page: 1 / 2
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18 results
Scholarly Output Search Results
Now showing 1 - 10 of 18
Article Citation - WoS: 9Citation - Scopus: 11Attachment Anxiety Benefits From Security Priming: Evidence From Working Memory Performance(Public Library Science, 2018) Gökçe, Ahu; Harma, MehmetThe present study investigates the relationship between the attachment dimensions (anxious vs. avoidance) and the cognitive performance of individuals specifically whether the attachment dimensions would predict the working memory (WM) performance. In the n-back task reflecting the WM capacity both attachment related and non-attachment related words were used. Participants were randomly assigned into two groups that received either the secure or the neutral subliminal priming. In the secure priming condition the aim was to induce sense of security by presenting secure attachment words prior to the n-back task performance. In neutral priming condition neutral words that did not elicit sense of security were presented. Structural equation modeling revealed divergent patterns for attachment anxiety and avoidance dimensions under the different priming conditions. In neutral priming condition WM performance declined in terms of capacity in the n-back task for individuals who rated higher levels of attachment anxiety. However in the secure priming condition WM performance was boosted in the n-back task for individuals who rated higher levels of attachment anxiety. In other words the subliminal priming of the security led to increased WM capacity of individuals who rated higher levels of attachment anxiety. This effect however was not observed for higher levels of attachment avoidance. Results are discussed along the lines of hyperactivation and deactivation strategies of the attachment system.Master Thesis The Effects of Knowledge Evoking Style and Icon Arrays on Perceived Risk and Willingnes(Kadir Has Üniversitesi, 2022) ÖZDEMİR, Deniz; Gokce, AhuOne of the most denoted cognitive errors in terms of judgments of risk probabilities was denominator neglect, and it happens when people pay more attention to numerators (subsets) and neglect the denominators (superordinate sets) during risk judgments, and it arises from the "gist-pop-out" of the numerator according to Fuzzy Trace Theory (FTT) and is defined as a class inclusion error. Previous studies which focus on visual demonstration of risk probabilities suggest that visuals help improve risk comprehension (reduce denominator neglect) and gist/verbatim knowledge extraction. Icon arrays are known to be proper visual communicators for displaying part-to-whole relationships via showing numerator and the denominator visually and utilized in reducing denominator neglect. The main objective of the thesis is to investigate risk evaluations under different risk scenarios (Experiment 1A: non-medical; Experiment 1B: medical) and to investigate the effects of visual aids, knowledge instruction types, and numeracy, health literacy on complex risk judgments, confidence levels and willingness to choose better outcomes within the overarching scope of FTT. The main hypotheses are as follows: Visual aids and instruction types will help mitigate denominator neglect and then in turn, improve risk evaluations, and higher numeracy will yield better risk evaluation accuracies. The findings demonstrated contrary results in terms of visual aids, which have been known for mitigating the effects of denominator neglect, the effects of visual aids were not replicated. Instruction types did not have the main effect on risk evaluations to help to reduce denominator neglect. Numeracy was the most prominent factor in risk accuracy, confidence in answers, and willingness. Health literacy did not show the main effect on willingness. Denominator neglect was found only in Experiment 1B.Article Citation - WoS: 9Citation - Scopus: 12Affective Modulation of Working Memory Maintenance: the Role of Positive and Negative Emotions(UNIV ECONOMICS) Gökçe, Ahu; Zinchenko, Artyom; Annac, Efsun; Conci, Markus; Geyer, ThomasThe present study investigated the impact of task-irrelevant emotional images on the retention of information in spatial working memory (WM). Two experiments employed a delayed matching-to-sample task where participants had to maintain the locations of four briefly presented squares. After a short retention interval, a probe item appeared and participants were required to indicate whether the probe position matched one of the previously occupied square positions. During the retention interval, task-irrelevant negative, positive, or neutral emotional pictures were presented. The results revealed a dissociation between negative and positive affect on the participants' ability to hold spatial locations in WM. While negative affective pictures reduced WM capacity, positive pictures increased WM capacity relative to the neutral images. Moreover, the specific valence and arousal of a given emotional picture was also related to WM performance: While higher valence enhanced WM capacity, higher levels of arousal in turn reduced WM capacity. Together, our findings suggest that emotions up- or down-regulate attention to items in WM and thus modulate the short-term storage of visual information in memory.Article Citation - WoS: 3Citation - Scopus: 3Exploring the Space-Calorie Association: Preliminary Evidence From Reaction Time Performance(Univ Economics & Human Sciences Warsaw, 2021) Gurbuz, Emre; Gokce, AhuThe present study was designed to investigate the representation of calorie levels in space. Previously an association between numerical magnitude and space has been established, namely, the Spatial Numerical Association of Response Codes (SNARC) effect. The spatial-numerical association reveals representation of smaller and larger numbers by the left and right sides, respectively. In addition, previous studies showed that spatial arrangement of foods in space affects the food selection behavior. In three experiments, the presence of an association between calorie magnitude and space was tested to understand how it could potentially affect food selection behavior. Reaction times were recorded to investigate the speed of information processing. In Experiment 1, locations of low and high calorie food stimuli were (in)congruent in terms of the space-calorie association. In Experiment 2, endogenous spatial cues were used to bias attention to investigate if this bias would lead to formation of the space-calorie association. Finally, Experiment 3 investigated whether green and red colors evoke approach or avoidance behavior and prevent formation of the space-calorie association. In all experiments, results revealed lack of an association between space and calorie, that is, presenting low/high calorie items on the left/right hemispace, respectively, did not modulate the processing speed.Article Exploring the spatial mental associations of distinct food types(Academic Press Ltd- Elsevier Science Ltd, 2024) Okur, Betul; Gokce, AhuPrevious research explored the spatial representations of healthy low -calorie and unhealthy high -calorie food items, revealing an association of healthy low -calorie food with left and top sides, and unhealthy/high-calorie food with right and top sides. This association, namely side bias, was limited to these specific categories leaving the representations of healthy high -calorie and unhealthy low -calorie food categories yet to be explored. Present study was designed to examine the spatial representation of four food categories (unhealthy low -calorie, unhealthy high -calorie, healthy low -calorie, healthy high -calorie) using a computerized food placement task. In Experiment 1, participants placed four food items from different categories into eight locations. In Experiment 2, identical task was used with the addition of centrally presented anchor food item to investigate the mental representation of food items in relation to each other. The frequency of placing food items in specific spatial locations were measured. The results of Experiment 1 provided partial support for side bias. However, the use of anchor items in Experiment 2 provided compelling evidence for vertical side bias, demonstrating consistent pattern of placing healthy foods on the upper sides and unhealthy foods on the lower sides. In both experiments, real -life food choices were examined to investigate whether the high -calorie bias would be observed in actual food choice behavior. The results from both experiments indicated strong preference to select high -calorie foods, supporting high -calorie bias. Overall, this study extends the evidence on the spatial representations of distinct food categories.Article Attentional Modulation of Outlier Processing(Springer, 2025) Gokce, Ahu; Yildirim, Bugay; Boduroglu, AysecanEnsemble perception enables the visual system to function effectively when the number of stimuli in the environment exceeds its capacity. Ensemble representations not only help the limited capacity of visual representations, but they also facilitate the detection and representation of items deviating from the group (i.e., the outlier). This study focuses on how attentional mechanisms modulate outlier processing. In three experiments, we presented participants with an ensemble that was formed by circle stimuli in varying sizes, and the outlier item was distinct in terms of its location. We measured outlier localization performance while manipulating attentional orienting via a spatial cueing paradigm. In Experiment 1, a valid, invalid, or neutral cue was presented before or after the display. Facilitation of outlier localization was most pronounced in the valid precue condition. Experiment 2 included a task to actively engage ensemble perception in addition to outlier localization, and cue validity effect was observed as in Experiment 1. Experiment 3A was carried to directly compare the top-down and bottom-up influences on outlier processing by presenting two spatial outliers-one target and another distractor outlier. The target outlier identity was previously determined and was identical across trials. In Experiment 3B, the target was in red, making it salient among the remaining items. In the invalid trials, where the distractor outlier was cued, responses were closer to the distractor item indicating that outlier processing is cue driven. These experiments overall demonstrate that automaticity of outlier processing can be overridden by cue-driven processes.Article Citation - WoS: 12Citation - Scopus: 12Positional Priming of Visual Pop-Out Search Is Supported by Multiple Spatial Reference Frames(Frontiers Media, 2015) Gökçe, Ahu; Mueller, Hermann J.; Geyer, ThomasThe present study investigates the representations(s) underlying positional priming of visual pop-out' search (Maljkodc and Nakayama 1996). Three search items (one target and two distractors) were presented at different locations in invariant (Experiment 1) or random (Experiment 2) cross-trial sequences. By these manipulations it was possible to disentangle retinotopic spatiotopic and object-centered priming representations. Two forms of priming were tested: target location facilitation (i.e. faster reaction times - RTswhen the trial n target is presented at a trial n-1 target relative to n-1 blank location) and distractor location inhibition (i.e. slower RTs for n targets presented at n-1 distractor compared to n-1 blank locations). It was found that target locations were coded in positional short-term memory with reference to both spatiotopic and object-centered representations (Experiment 1 vs. 2). In contrast distractor locations were maintained in an object-centered reference frame (Experiments 1 and 2). We put forward the idea that the uncertainty induced by the experiment manipulation (predictable versus random cross-trial item displacements) modulates the transition from object- to space-based representations in cross-trial memory for target positions.Article Visual Processing of Food Stimuli: the Impact of Working Memory Load and Color(Springer, 2023) Gurbuz, Emre; Gokce, AhuOur environment is surrounded by appetizing food stimuli that contribute to an increase in health problems such as obesity and overweight. Understanding the cognitive factors underlying the processing of food stimuli can play an important role in health interventions. Recent studies showed that high-calorie food stimuli impair working memory (WM) task performance, and some individuals, such as restrained eaters, are more susceptible to this WM performance decrement. The present study investigated the effect of low and high WM load on the processing of food stimuli in restrained and unrestrained eaters. Using an n-back task, identical food (low and high calorie) and non-food (object) stimuli were presented in colored (Experiment 1A) or in grayscale (Experiment 1B) versions. Performance was assessed by reaction time (RT), d-prime, and response bias C variables. Results revealed differences in the different WM load conditions. While no effects were observed in the low load, higher WM load impaired task performance. Processing the food stimuli, compared to objects, led to longer RTs and decreased task performance, indicated by d prime and response bias, only when the stimuli were presented in color but not in grayscale. Though no difference was observed in restrained and unrestrained eaters, the role of WM load on the visual processing of the food stimuli remains to be further examined.Master Thesis Yiyeceklerin Uzamsal Temsili(2023) Okur, Betül; Gökçe, AhuEvrim perspektifinden, insanlar hayatta kalabilmek için yüksek kalorili yiyeceklere karşı bir yanlılık geliştirmişlerdir. Ancak bu yanlılık, besin bulmakta zorlanmayan modern insanlar için sağlık riskleri oluşturabilir. Bu risklerin önüne geçmek için insanların yiyecek seçimlerini sağlıklı yönde etkileyecek yöntemlere ihtiyaç vardır. Bu yöntemlerden biri, belli tür yiyecek türlerinin zihinsel olarak belli konumlarda temsil edilmesi, yani mekansal yanlılık olabilir. Bu tezde, yiyeceklerin mekandaki zihinsel temsili iki çalışma ile araştırılmıştır. Yiyeceklerin mekansal temsili, insanların sağlık algısı ve yiyecek tercihleri üzerinde önemli bir etkiye sahiptir. Çalışma 1, mekansal konumlar ile (sağlıksız) besinler arasında bir zihinsel temsil olup olmadığını araştırmayı amaçlamıştır. Sağlıklı (sağlıksız) besinlerin sol ve üst (sağ, alt) konumlara yerleştirilmesi, yiyeceklerin mekandaki zihinsel temsiline uygun olarak kabul edilmektedir. Yiyeceklerin, uzamsal boşluğa zihinsel uyumlu olarak yerleştirilmesinin görev performansını artıracağı hipotezi test edilmiştir. Sonuçlar, mekansal yanlılık veya yüksek kalori yanlılığını desteklememiştir. Mekansal yanlılık, Çalışma 2'de 2 deney ile daha detaylı olarak incelenmiştir. Sağlıklı yüksek kalorili ve sağlıksız düşük kalorili yiyeceklerin zihinsel mekansal temsili henüz gösterilmemiştir. Bu nedenle, Çalışma 2, sağlıklı ve sağlıksız yiyeceklerin mekandaki temsili üzerine araştırma yapmayı amaçlamıştır. Dört besin kategorisinin (sağlıklı düşük kalorili, sağlıklı yüksek kalorili, sağlıksız düşük kalorili, sağlıksız yüksek kalorili) mekansal temsili, bir dizi besin yerleştirme görevi ile değerlendirilmiştir. Sonuçlar sağlıklı ve sağlıksız yiyecekler için dikey yan yanlılık konusunda destek sunmuştur. Tüm deneylerde gerçek hayatta yiyecek seçimleri incelenmiş ve yüksek kalorili yanlılığın gerçek yaşam yiyecek seçimi davranışına yansıyıp yansımadığı araştırılmıştır. Sonuçlar, yüksek kalorili yiyeceklerin tercih edildiğini göstermiştir. Mekansal yanlılığı destekleyen bulgular, pazarlama ve tüketici davranışı araştırmalarında ürün yerleşimi düzenlemeleri aracılığıyla daha sağlıklı seçimlerin teşvik edilmesinde kullanılabilir.Article Citation - Scopus: 12Affective Modulation of Working Memory Maintenance: the Role of Positive and Negative Emotions(University of Economics and Human Sciences in Warsaw, 2021) Gokce,A.; Zinchenko,A.; Annac,E.; Conci,M.; Geyer,T.The present study investigated the impact of task-irrelevant emotional images on the retention of information in spatial working memory (WM). Two experiments employed a delayed matching-to-sample task where participants had to maintain the locations of four briefly presented squares. After a short retention interval, a probe item appeared and participants were required to indicate whether the probe position matched one of the previously occupied square positions. During the retention interval, task-irrelevant negative, positive, or neutral emotional pictures were presented. The results revealed a dissociation between negative and positive affect on the participants’ ability to hold spatial locations in WM. While negative affective pictures reduced WM capacity, positive pictures increased WM capacity relative to the neutral images. Moreover, the specific valence and arousal of a given emotional picture was also related to WM performance: While higher valence enhanced WM capacity, higher levels of arousal in turn reduced WM capacity. Together, our findings suggest that emotions up- or down-regulate attention to items in WM and thus modulate the short-term storage of visual information in memory. © 2021 University of Finance and Management in Warsaw. All rights reserved.
