Spontaneous brain oscillations and perceptual decision-making

J Samaha, L Iemi, S Haegens, NA Busch - Trends in cognitive sciences, 2020 - cell.com
Making rapid decisions on the basis of sensory information is essential to everyday
behaviors. Why, then, are perceptual decisions so variable despite unchanging inputs …

Spontaneous neural oscillations bias perception by modulating baseline excitability

L Iemi, M Chaumon, SM Crouzet… - Journal of …, 2017 - Soc Neuroscience
The brain exhibits organized fluctuations of neural activity, even in the absence of tasks or
sensory input. A prominent type of such spontaneous activity is the alpha rhythm, which …

Prestimulus alpha-band power biases visual discrimination confidence, but not accuracy

J Samaha, L Iemi, BR Postle - Consciousness and cognition, 2017 - Elsevier
The magnitude of power in the alpha-band (8–13 Hz) of the electroencephalogram (EEG)
prior to the onset of a near threshold visual stimulus predicts performance. Together with …

[HTML][HTML] Transcranial alternating current stimulation to modulate alpha activity: A systematic review

BP De Koninck, D Brazeau, S Guay, AH Babiloni… - … : Technology at the …, 2023 - Elsevier
Background Transcranial alternating current stimulation (tACS) has been one of numerous
investigation methods used for their potential to modulate brain oscillations; however, such …

Prestimulus EEG power predicts conscious awareness but not objective visual performance

CSY Benwell, CF Tagliabue, D Veniero, R Cecere… - eneuro, 2017 - eneuro.org
Prestimulus oscillatory neural activity has been linked to perceptual outcomes during
performance of psychophysical detection and discrimination tasks. Specifically, the power …

Multiple mechanisms link prestimulus neural oscillations to sensory responses

L Iemi, NA Busch, A Laudini, S Haegens, J Samaha… - elife, 2019 - elifesciences.org
Spontaneous fluctuations of neural activity may explain why sensory responses vary across
repeated presentations of the same physical stimulus. To test this hypothesis, we recorded …

Moment-to-moment fluctuations in neuronal excitability bias subjective perception rather than strategic decision-making

L Iemi, NA Busch - Eneuro, 2018 - eneuro.org
Perceiving an external stimulus depends not only on the physical features of the stimulus,
but also fundamentally on the current state of neuronal excitability, indexed by the power of …

[HTML][HTML] A biophysical model of dynamic balancing of excitation and inhibition in fast oscillatory large-scale networks

RG Abeysuriya, J Hadida… - PLoS computational …, 2018 - journals.plos.org
Over long timescales, neuronal dynamics can be robust to quite large perturbations, such as
changes in white matter connectivity and grey matter structure through processes including …

[HTML][HTML] A null model of the mouse whole-neocortex micro-connectome

MW Reimann, M Gevaert, Y Shi, H Lu… - Nature …, 2019 - nature.com
In connectomics, the study of the network structure of connected neurons, great advances
are being made on two different scales: that of macro-and meso-scale connectomics …

Multiscale modeling of brain dynamics: from single neurons and networks to mathematical tools

C Siettos, J Starke - Wiley Interdisciplinary Reviews: Systems …, 2016 - Wiley Online Library
The extreme complexity of the brain naturally requires mathematical modeling approaches
on a large variety of scales; the spectrum ranges from single neuron dynamics over the …