Ashwin G. Ramayya

Intracranial electrophysiology reveals distinct neural representations of nociception and salience in the human brain

The paper uses intracranial recordings to show that nociception and salience have distinct neural representations in the human brain, with different anatomical, temporal, and functional characteristics.

Salient auditory stimuli evoke spatially segregated phasic and sustained neural responses in the human brain

The paper examines neural responses to salient auditory stimuli using intracranial electrodes, finding two distinct temporal stages of activation: phasic sensorimotor and sustained salience network responses.

Naturalistic acute pain states decoded from neural and facial dynamics

The paper decodes naturalistic acute pain states using neural and facial dynamics in epilepsy patients, identifying reliable neurobehavioral markers.

Return of intracranial beta oscillations and traveling waves with recovery from traumatic brain injury

This study identifies beta oscillations and traveling waves as biomarkers of recovery from traumatic brain injury using intracranial electrode data.

MTL neurons phase-lock to human hippocampal theta

The paper shows that MTL neurons phase-lock to hippocampal theta oscillations, indicating a role for theta synchronization in memory-related communication across brain regions.

"Primed to Perform:" Dynamic white matter graph communicability may drive metastable network representations of enhanced preparatory cognitive control

The paper identifies preparatory neural states associated with cognitive control by analyzing white matter communicability in human intracranial recordings.

Simple Human Response Times are Governed by Dual Anticipatory Processes with Distinct and Distributed Neural Signatures

The paper investigates anticipatory response biases in human behavior using iEEG data and identifies distinct neural signatures for two types of biases.

Tractography-based targeting of ventral intermediate nucleus: A comparison between conventional stereotactic targeting and diffusion tensor imaging-based targeting

This study compares probabilistic and deterministic diffusion tensor imaging tractography with stereotactic coordinates for targeting the ventral intermediate nucleus in DBS, finding probabilistic tractography most accurate.

Single neurons throughout human memory regions phase-lock to hippocampal theta

The paper shows that neurons in human memory regions phase-lock to hippocampal theta oscillations during memory-related activity.