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Cognitive Neuroimaging

NRG

In the Brain Imaging Laboratory, we conduct studies in the field of cognitive neuroscience using fMRI (Functional Magnetic Resonance Imaging) with our interdisciplinary team. Our main research areas focus on the perception of number and time. To understand the neural mechanisms underlying these perceptions, we use standard activation maps as well as structural and functional connectivity methods (resting state functional connectivity, DTG-Diffusion Tensor Imaging, DNM-Dynamic Casual Modeling). We are also working with collaborating teams of engineers to improve connectivity methods.

M Ç-1

Metehan ÇİÇEK

(Prof. Dr.)

metehan.cicek@gmail.com

S Ü-1

Sertaç ÜSTÜN

(Assistant Professor)

ustun.sertac@gmail.com

H Ş-1

Hazal ŞİMŞEK ÜNVER

(Instructor Dr.)

hazalsimsek092@gmail.com

b s-1

Burcu SIRMATEL BAKRIYANIK

(Assistant Professor)

burcusirmatel@gmail.com

s a-1

Simge ALTINOK (Dr.)

simgealtinok@gmail.com

z c o-1

Zeynep Ceren ONLAT(PhD Student)

cerenn.onlat@gmail.com

Previous Lab Members

Prof. Dr. Nihal APAYDIN

Prof. Dr. Güvem GÜMÜŞ AKAY

Dr. Gözde VATANSEVER

Dr. Emre KALE

Dr. Nazife AYYILDIZ

Sr. İpek ÇELİKAĞ

Selected Publications

Yayın-1

Neural networks underlying magnitude perception: a specif ic meta-analysis of fMRI studies

Hazal Şimşek-Ünver , Burcu Sırmatel-Bakrıyanık , Beyza Doğanay , Fuat Balcı , Metehan Çiçek

Cerebral Cortex, Volume 35, Issue 7, July 2025, bhaf163.

https://doi.org/10.1093/cercor/bhaf163

Reward Processing Alters the Time Perception Networks in Patients with Major Depressive Disorder

Altınok, S., Vatansever, G., Apaydın, N., Üstün, S., Kale, E. H., Çelikağ, İ., Devrimci-Özgüven, H., Baskak, B., & Çiçek, M. (2023).

Timing & Time Perception (published online ahead of print 2023). doi: https://doi.org/10.1163/22134468-bja10073

Can A Common Magnitude System Theory Explain The Brain Representation of Space, Time and Number?

ÜSTÜN, S., SIRMATEL, B., & ÇİÇEK, M. (2022). Can a Common Magnitude System Theory Explain the Brain Representation of Space, Time, and Number?. Neuropsychiatry, 59(1), S24-S28. DOI: 10.29399/npa.28159

Protocol to examine the neural basis of symbolic and non-symbolic quantity processing in human brain with fMRI-1

Protocol to examine the neural basis of symbolic and non-symbolic quantity processing in human brain with fMRI

Altınok, S., Vatansever, G., Üstün, S., Kale, E. H., & Çiçek, M. (2022).

STAR Protocols, 3(4), 101673. doi: https://doi.org/10.1016/j.xpro.2022.101673

yayınlar-Beyin Görüntülerinde Yapısal ve İşlevsel Bağlantısallık Dinlenim Durumu İşlevsel Manyetik Rezonans Görüntüleme ve Difüzyon Tensör Görüntüleme-1

Beyin Görüntülerinde Yapısal ve İşlevsel Bağlantısallık: Dinlenim Durumu İşlevsel Manyetik Rezonans Görüntüleme ve Difüzyon Tensör Görüntüleme
Şimşek H., İnal ŞÇ, Meco BC, Çiçek M. (2021) J Ankara Univ Fac Med 2021;74:1-9.

paper- structural brain connectivity dyscalculia-1

Structural brain connectivity in children with developmental dyscalculia

Ayyildiz N., Beyer F., Ustun S., Kale E. H., Calisir O. M., Uran P., Oner O., Olkun S., Anwander A., Witte A., Villringer A., Cicek M. (2021). bioRxiv.

yayınlar-Children With Dyscalculia Show Hippocampal Hyperactivity During Symbolic Number Perception-1