Görsel Renk Uyaranlarının Beyin Aktivitesine Etkisi: EEG Tabanlı Çalışma

Yıl 2026, Cilt: 42 Sayı: 1 , - , 10.03.2026

Çiğdem Gülüzar Altıntop , Emre Erdoğan , Tolga Demren , Ahmet Calp , Furkan Kavaklı

https://doi.org/10.65520/erciyesfen.1821015

https://izlik.org/JA94FS76CE

Öz

Renk algısı, göz ve beynin etkileşimli işleyişiyle oluşan karmaşık bir süreçtir. Gerçekleştirilen çalışmalar renklerin hem duyguları hem davranışları etkilediğini göstermektedir. Bu çalışmada, farklı renk uyaranlarının beyindeki etkileri Elektroensefalografi (EEG) sinyalleri ile incelenmiştir. On iki sağlıklı katılımcı çalışmaya dahil olmuş ve katılımcılara sekiz temel renk uyaran olarak izletilirken 18 kanallı EEG kayıtları elde edilmiştir. Bu sinyallerinden çeşitli özellikler çıkarılmış ve istatistiksel analizler ile topografik haritalama yapılmıştır. Katılımcılar iki gruba ayrılmış ve gruplar arasında özellikle temporal, parietal ve frontal bölgelerde anlamlı farklılıklar gözlemlenmiştir. Soğuk (mavi, camgöbeği) ve nötr renkler (siyah, beyaz) daha belirgin değişiklikler oluştururken, sıcak tonlar (kırmızı, sarı, eflatun) geniş frontal-parietal aktivasyona neden olmuştur. Karmaşıklık özelliği anlamlı farklılığın en çok sağlandığı belirteç olarak öne çıkmıştır. Bulgular, renk uyaranlarının kortikal aktivasyon üzerinde belirgin ve bireysel farklılıklara bağlı etkiler yarattığını göstermektedir. Gelecek çalışmalarda daha geniş örneklem, farklı renk yoğunlukları ve multimodal yöntemlerle bu bulguların desteklenmesi planlanmaktadır.

Anahtar Kelimeler

EEG , Biyomedikal sinyal işleme , Karmaşıklık , Beyin dinamikleri , Görsel algı

Etik Beyan

Bu çalışma Erciyes Üniversitesi Sağlık Bilimleri Araştırma Etik Kurulu’nun 2025/186 onay numarası ile yürütülmüştür.

Destekleyen Kurum

Destekleyen Kuruluş bulunmamaktadır.

Teşekkür

Çalışmaya katılım gösteren tüm gönüllülere teşekkür ederiz.

Effects of Visual Color Stimuli on Brain Activity: An EEG-Based Study

https://izlik.org/JA94FS76CE

Öz

Color perception is a multifaceted phenomenon due to the combined functioning of eye and brain. It has been shown that colors affect emotion and behavior. This study investigated the effects of different color stimuli on the brain using electroencephalography (EEG) signals. Twelve healthy individuals participated in the study and EEG was obtained using an 18-channel system while they were exposed to eight basic color stimuli. Features were extracted from the signals, and then several statistical analyses and topographic mapping were performed. Participants were divided into two groups and significant differences were observed between the groups, specifically in the temporal, parietal, and frontal regions. The cooler (blue, cyan) and neutral colors (black, white) demonstrated the most significant changes, while the warm colors (red, yellow, violet) produced widespread frontal-parietal activation. In the current analysis, complexity emerged as the indicator that produced the most significant differences. These findings suggest that color stimuli modulate cortical activation in a distinct way, and are subject to individual differences. Future studies will be conducted to further support these findings with larger samples, different intensities of color, and multimodal methods.

Anahtar Kelimeler

EEG , Biomedical signal processing , Complexity , Brain- dynamics , Color perception

Etik Beyan

This study was conducted by the Erciyes University Health Sciences Research Ethics Committee under approval number 2025/186.

Destekleyen Kurum

There is no supporting organization.

Teşekkür

We thank all volunteers in the study.

Kaynakça

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