Research Overview

Research in our lab focuses on the neural mechanisms of perceptual and cognitive functions. Current research in the lab aims to elucidate how spatial and feature attention modulates activity of single neurons and neuronal ensembles across a distributed network of cortical brain areas. We are particularly interested in the way the temporal structure of neuronal activity contributes to the formation of functional networks according to behavioral demands and its role in long-range communication among selected neuronal populations.

Selected Publications

Dynamic and stable population coding of attentional instructions coexist in the prefrontal cortex
P. Sapountzis*, S. Paneri*, S. Papadopoulos and G.G. Gregoriou (*equal contribution)
Proc Natl Acad Sci, U.S.A. (2022), 119(40):e2202564119, doi: 10.1073/pnas.2202564119, Epub 2022 Sep 26

Distinct roles of prefrontal and parietal areas in the encoding of attentional priority.
P. Sapountzis, S. Paneri and G.G. Gregoriou
Proc Natl Acad Sci, U.S.A. (2018), 115(37):E8755-E8764, doi: 10.1073/pnas.1804643115, Epub 2018 Aug 28

Top-Down Control of Visual Attention by the Prefrontal Cortex. Functional Specialization and Long-range Interactions.
S. Paneri and G.G. Gregoriou
Front Neurosci (2017), 11:545, doi: 10.3389/fnins.2017.00545, Invited Article, Special Issue Prefrontal cortex and executive functions

Oscillatory synchrony as a mechanism of attentional processing.
G.G. Gregoriou, S. Paneri*, and P. Sapountzis* (*equal contribution)
Brain Res (2015) Invited Article, Special Issue on Prediction and Attention, doi:10.1016/j.brainres.2015.02.004

Lesions of prefrontal cortex reduce attentional modulation of neuronal responses and synchrony in V4.
G.G. Gregoriou, A.F. Rossi, L.G. Ungerleider and R. Desimone
Nature Neurosci (2014), 17(7):1003-11

Cell-type specific synchronization of neural activity in FEF with V4 during attention.
G.G. Gregoriou, S.J. Gotts and R. Desimone
Neuron (2012), 72(3):581-594

Long-range neural coupling through synchronization with attention.
G.G. Gregoriou, S.J. Gotts, H. Zhou and R. Desimone
Prog. Brain Res. (2009), 176C:35-45

High frequency long-range coupling between prefrontal and visual cortex during attention.
G.G. Gregoriou*, S.J. Gotts*, H. Zhou and R. Desimone (*equal contribution)
Science (2009), 324:1207-1210