Journals / Erciyes Üniversitesi Fen Bilimleri Enstitüsü Fen Bilimleri Dergisi / 2026 / Cilt: 42 Sayı: 1

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

Görsel Renk Uyaranlarının Beyin Aktivitesine Etkisi: EEG Tabanlı Çalışma

Çiğdem Gülüzar Altıntop(ERCİYES ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ)0000-0001-8632-3385
Emre Erdoğan(ERCİYES ÜNİVERSİTESİ, HALİL BAYRAKTAR SAĞLIK HİZMETLERİ MESLEK YÜKSEKOKULU)0009-0006-7838-347X
Tolga Demren(ERCİYES ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, BİYOMEDİKAL MÜHENDİSLİĞİ BÖLÜMÜ, BİYOMEDİKAL MÜHENDİSLİĞİ PR.)0009-0008-4986-3401
Ahmet Calp(ERCİYES ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, BİYOMEDİKAL MÜHENDİSLİĞİ BÖLÜMÜ, BİYOMEDİKAL MÜHENDİSLİĞİ PR.)0009-0007-0363-8949
Furkan Kavaklı(ERCİYES ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, BİYOMEDİKAL MÜHENDİSLİĞİ BÖLÜMÜ, BİYOMEDİKAL MÜHENDİSLİĞİ PR.)0009-0005-0258-0402
Pages
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Publication Date
2026-03-10
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Future studies will be conducted to further support these findings with larger samples, different intensities of color, and multimodal methods.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Color perception is a multifaceted phenomenon due to the combined functioning of eye and brain.
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Key Findings & Data: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.
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Conclusion & Impact:Future studies will be conducted to further support these findings with larger samples, different intensities of color, and multimodal methods.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:EEG · Biyomedikal sinyal işleme · Karmaşıklık

Abstract

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.

Özet

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.

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Cite This Article

Altıntop, Ç. G., Erdoğan, E., Demren, T., Calp, A., Kavaklı, F. (2026). Effects of Visual Color Stimuli on Brain Activity: An EEG-Based Study. Erciyes Üniversitesi Fen Bilimleri Enstitüsü Fen Bilimleri Dergisi, Cilt: 42 Sayı: 1. https://doi.org/10.65520/erciyesfen.1821015

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