User profiles for Emily P Stephen

Emily P Stephen

Assistant Professor, Boston University
Verified email at bu.edu
Cited by 141

Propofol disrupts alpha dynamics in functionally distinct thalamocortical networks during loss of consciousness

…, DW Zhou, P Kahali, EP Stephen… - Proceedings of the …, 2023 - National Acad Sciences
During propofol-induced general anesthesia, alpha rhythms measured using
electroencephalography undergo a striking shift from posterior to anterior, termed anteriorization, …

[HTML][HTML] Sevoflurane induces coherent slow-delta oscillations in rats

…, JT Lee, KY Vlasov, JZ Pei, EP Stephen… - Frontiers in neural …, 2017 - frontiersin.org
Although general anesthetics are routinely administered to surgical patients to induce loss
of consciousness, the mechanisms underlying anesthetic-induced unconsciousness are not …

[HTML][HTML] Broadband slow-wave modulation in posterior and anterior cortex tracks distinct states of propofol-induced unconsciousness

EP Stephen, GC Hotan, ET Pierce, PG Harrell… - Scientific reports, 2020 - nature.com
A controversy has developed in recent years over the roles of frontal and posterior cortices in
mediating consciousness and unconsciousness. Disruption of posterior cortex during sleep …

[HTML][HTML] State space methods for phase amplitude coupling analysis

H Soulat, EP Stephen, AM Beck, PL Purdon - Scientific Reports, 2022 - nature.com
Phase amplitude coupling (PAC) is thought to play a fundamental role in the dynamic
coordination of brain circuits and systems. There are however growing concerns that existing …

Propofol-mediated Unconsciousness Disrupts Progression of Sensory Signals through the Cortical Hierarchy

JM Tauber, SL Brincat, EP Stephen… - Journal of Cognitive …, 2024 - direct.mit.edu
A critical component of anesthesia is the loss of sensory perception. Propofol is the most
widely used drug for general anesthesia, but the neural mechanisms of how and when it …

Latent neural dynamics encode temporal context in speech

EP Stephen, Y Li, S Metzger, Y Oganian, EF Chang - Hearing Research, 2023 - Elsevier
Direct neural recordings from human auditory cortex have demonstrated encoding for
acoustic-phonetic features of consonants and vowels. Neural responses also encode distinct …

[PDF][PDF] Spectral Connectivity: A python package for computing multitaper spectral estimates and frequency-domain brain connectivity measures on the CPU and GPU

…, M Sarmashghi, EP Stephen - Journal of Open …, 2022 - joss.theoj.org
In neuroscience, characterizing the oscillatory dynamics of the brain is critical to understanding
how brain areas interact and function. Neuronal activity tends to fluctuate rhythmically–…

Propofol disrupts alpha dynamics in distinct thalamocortical networks underlying sensory and cognitive function during loss of consciousness

VS Weiner, DW Zhou, P Kahali, EP Stephen… - bioRxiv, 2022 - biorxiv.org
During propofol-induced general anesthesia, alpha rhythms undergo a striking shift from
posterior to anterior, termed anteriorization. We combined human intracranial recordings with …

State space oscillator models for neural data analysis

AM Beck, EP Stephen… - 2018 40th Annual …, 2018 - ieeexplore.ieee.org
Neural oscillations reflect the coordinated activity of neuronal populations across a wide
range of temporal and spatial scales, and are thought to play a significant role in mediating …

[HTML][HTML] Assessing dynamics, spatial scale, and uncertainty in task-related brain network analyses

EP Stephen, KQ Lepage, UT Eden… - Frontiers in …, 2014 - frontiersin.org
The brain is a complex network of interconnected elements, whose interactions evolve
dynamically in time to cooperatively perform specific functions. A common technique to probe …