CDCeymi Doenyas

Ceymi Doenyas

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

The organizations/institutes from the scholar's latest article

Previous Organizations / Institutes

The organizations / institutes from the scholar's other articles in the past ten years


Ceymi Doenyas has a total of 45 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Autism-Related Language Preferences of Turkish-Speaking Autistic Adults

    by Elif Bastan, Bahadir Turan, Esra Hoşoğlu, Beyza Ustun-Elayan, Ceymi Doenyas, Aynur Görmez, Ali Kandeğer, Yasemin Hoşgören Alıcı, Sophie Sowden-Carvalho, Connor Tom Keating

    Autism-related terminology is contested, and preferences vary across linguistic and cultural contexts. However, evidence from Turkish-speaking autistic communities is currently limited. This mixed-methods study examined terminology preferences among 127 native Turkish-speaking autistic participants aged 15–66 years. Participants selected all terms they felt comfortable using across seven categories of autism-related language. Eighty-one participants also provided open-ended responses, which were analysed using inductive reflexive thematic analysis. Participants most frequently endorsed otizm (“autism”; 79.30%) as the nomenclature of autism and nörolojik/beyin farklılığı (“neurological/brain difference”; 77.49%) as a broader conceptualisation. Farklılıklar (“differences”) was the most frequently endorsed term for both autism-related difficulties (82.45%) and strengths (71.19%). No single expression for an autistic person was endorsed by majority: otistik (“autistic”; 49.33%), nöroçeşitli kişi (“neurodivergent person”; 47.40%), and otizmli (“[person] with autism”; 45.48%) received similar support. Individual-difference measures showed few consistent associations with terminology endorsement after correction for multiple comparisons. Six qualitative themes concerned autonomy, social impact, identity, accuracy, context, and respect. Turkish-speaking autistic adults generally favoured direct and non-deficit-oriented language while emphasising individual choice. Researchers and professionals should therefore ask about personal preferences whenever possible and avoid imposing a single terminology on the wider community.

  • Top Cited Papers
    Open Access

    Gut–brain axis and neuropsychiatric health: recent advances

    by Ceymi Doenyas, Gerard Clarke, Renáta Cserjési

    The gut–brain axis, a bidirectional communication pathway, permits the central nervous system (CNS) to exert influence over gastrointestinal function in response to stress, while the gut microbiota regulates the CNS via immune, neuroendocrine, and vagal pathways. Current research highlights the importance of the gut microbiota in stress-related disorders and the need for further research into the mechanisms of gut–brain communication, with potential therapeutic implications for a wide range of health conditions. This is a challenge taken on in this Scientific Reports Collection on the Gut-Brain Axis. The gut–brain axis has significant implications for neurodegenerative, psychiatric, and metabolic disorders. Recent studies have underscored the role of the gut microbiome in conditions such as Parkinson’s disease (PD), with evidence indicating that gut dysfunction and pathological features can precede motor symptoms by decades. The use of in vivo animal models has demonstrated that preformed α-synuclein fibrils (PFFs) can travel from the gut to the brain in a dosage-dependent manner, thereby supporting the “gut-first” theory in the context of PD, a theory that is explored in this Collection using in vitro approaches. There is also evidence that the gut–brain axis plays a role in obesity and machine learning algorithms may assist in differentiating between obese and overweight individuals based on their microbiota data. There is also growing interest in the role of the gut at the interface between post-traumatic stress disorder (PTSD), sleep disturbances, and irritable bowel syndrome (IBS). The studies described in this Collection support and expand on the observations from previous preclinical and clinical investigations, while also providing essential novel insights that can drive discovery into previously unexplored avenues of brain-gut-microbiome interactions in health and disease.


  • Open Access

    Long-term Behavioral Consequences of the COVID-19 Pandemic for Autistic Individuals and Their Mothers

    by Herdem Aslan Genç, Ceymi Doenyas, Yasemin Aksu, Mirac Nur Musaoğlu, Sena Uzunay, Tuba Mutluer

    Long-term effects of the COVID-19 pandemic on autistic individuals and their families are recently emerging. This study investigated these effects in 40 mother-child dyads by measuring the behavioral problems of autistic individuals (via Aberrant Behavior Checklist) and their mothers’ anxiety levels (via Beck Anxiety Inventory) during the pre-pandemic period, one month after, and one year after its onset. One year into the pandemic, aberrant behaviors of autistic individuals worsened only for those whose mothers had high anxiety levels. The continued negative impact of the COVID-19 pandemic on the behavior of autistic individuals is related to their mother’s anxiety level, highlighting the need to support maternal mental health in families with individuals with autism.


  • Positive affect, negative affect, and psychological resilience mediate the effect of self‐compassion on mental toughness: A serial mediation analysis

    by Ali Eryilmaz, Hacer Yıldırım‐Kurtuluş, Ceymi Doenyas

    Following the positive youth development perspective that emphasizes the importance of focusing on the positive assets of youth to be developed, this study examined the variables related with mental toughness, a trainable skill that is associated with psychological and academic well‐being outcomes, in preadolescent youth. The effect of self‐compassion on the mental toughness of preadolescents and the serial mediating effect of positive/negative affect and psychological resilience was explored for the first time in the literature to the best of our knowledge, via the causal‐comparative model. The study group consisted of a total of 263 preadolescents (ages 10–13). The results show that self‐compassion increases positive affect and this increases the mental toughness of preadolescents. As negative affect is negatively associated with mental toughness, by decreasing negative affect, self‐compassion positively influences mental toughness. Alternately, self‐compassion increases resilience, which in turn increases mental toughness. The findings of this study indicate that positive/negative affect and resilience play a serial mediating role in the relationship between self‐compassion and mental toughness. These relationships highlight the components to be included in interventions directed toward adolescents to improve the trainable skill of mental toughness, which can then lead to positive well‐being outcomes concurrently and through adulthood.


  • Zoom Fatigue, Psychological Distress, Life Satisfaction, and Academic Well-Being

    by M. Engin Deniz, Seydi Ahmet Satici, Ceymi Doenyas, Mark D. Griffiths

    Little is known about the psychological consequences of the recently increased utilization of videoconferencing, which has enabled life to proceed as close to normal as possible during the COVID-19 pandemic. To understand the psychological consequences of this recent global lifestyle change in different populations, the psychometric validation of the Zoom Exhaustion and Fatigue Scale (ZEFS) and the relationship of this construct with academic well-being, mental well-being, and life satisfaction are presented. In a sample of 470 Turkish university students (57 percent female, Mage = 20.26 ± 2.18, ranging between 18 and 33 years), first-order and second-order confirmatory factor analyses confirmed the construct validity of the scale, and the item response theory results yielded appropriate item difficulty and discrimination. ZEFS scores were significantly and positively associated with anxiety, depression, and stress, and negatively associated with life satisfaction and academic well-being, supporting the scale's concurrent validity. Incremental validity was shown with mediational models demonstrating significant and separate indirect effects of Zoom exhaustion and fatigue on life satisfaction and academic well-being, both mediated by psychological distress. The results suggest ZEFS to be a valid and reliable tool to evaluate the psychological consequences of videoconferencing, which has globally increased during the COVID-19 pandemic, in non-Western samples. By showing the relationships of Zoom exhaustion and fatigue with psychological distress, life satisfaction, and academic well-being, the present study highlights potential avenues to be addressed to protect the mental well-being of all individuals who have integrated videoconferencing as part of their daily lives.