Maria J. Ribeiro

Researcher @ CIBIT-ICNAS and FMUC University of Coimbra

Studying the Human Brain


I am a neuroscientist interested in understanding the neural mechanisms of perception, decision-making and action, in humans, including, the role of spontaneous fluctuations in brain state and its link to neuromodulation. I use non-invasive neuroimaging techniques and physiological recordings in humans to unveil these interactions and investigate the changes that occur throughout the lifespan with a strong focus on the study of the effect of ageing on brain function and its impact on cognitive decline.

Brain signal dynamics during quiet rest

Video created using LORETA software

KEY PUBLICATIONS

Ribeiro MJ, Castelo-Branco M. 2022. Slow fluctuations in ongoing brain activity decrease in amplitude with ageing yet their impact on task-related evoked responses is dissociable from behavior. Elife;11:e75722. DOI: 10.7554/eLife.75722

Ribeiro MJ, Castelo-Branco M. 2019. Neural correlates of anticipatory cardiac deceleration and its association with the speed of perceptual decision-making, in young and older adults. Neuroimage. Jun 5;199:521-533. DOI: 10.1016/j.neuroimage.2019.06.004

Ribeiro MJ and Castelo-Branco M. 2019. Age-related differences in event-related potentials and pupillary responses in cued reaction time tasks. Neurobiology of Aging. Vol. 73: 177-189 DOI: 10.1016/j.neurobiolaging.2018.09.028

Ribeiro, M.J., Paiva, J.S., and Castelo-branco, M. 2016. Spontaneous fluctuations in sensory processing predict within-subject reaction time variability. Frontiers in Human Neuroscience. May 9; 10: 200. DOI: 10.3389/fnhum.2016.00200

Ribeiro M.J., Violante I.R., Edden R.A.E. and Castelo-Branco M. 2015. Abnormal relationship between GABA, neurophysiology and impulsive behavior in neurofibromatosis type 1. Cortex. Vol. 64: 194-208. DOI: 10.1016/j.cortex.2014.10.019