Hiroyuki Oya

Safety of Subdural Direct Current Stimulation: A Histological Study in the Ovine Brain

This study estimates histological safety boundaries for cathodal DC stimulation in ovine brains, finding no damage at low charge densities and increasing lesion risk with higher doses.

High-Frequency Spinal Cord Stimulation Reorganizes Cortical Cross-Frequency Coupling in a Region- and Time-Dependent Manner

This study shows high-frequency spinal cord stimulation changes cortical cross-frequency coupling in different brain regions and over time, with distinct effects in association and somatosensory cortices.

The gene expression signature of electrical stimulation in the human brain

This study identifies the gene expression changes in the human brain following electrical stimulation, revealing non-neuronal cell involvement and a conserved gene signature.

TMS provokes target-dependent intracranial rhythms across human cortical and subcortical sites

This study investigates how TMS affects neural rhythms in different brain regions using intracranial recordings, finding both low-frequency increases and high-frequency decreases in response to stimulation.

Distribution of multi-unit pitch responses recorded intracranially from human auditory cortex

This study records multi-unit pitch responses from human auditory cortex and finds they are distributed across Heschl's gyrus, not localized to a specific region.

Temporally organized representations of reward and risk in the human brain

This study uses iEEG to show how reward and risk computations are temporally organized in the human brain, revealing cascading and parallel encoding patterns.

Effects of transcranial magnetic stimulation on the human brain recorded with intracranial electrocorticography: First-in-human study

This study uses intracranial electrocorticography to evaluate the effects of transcranial magnetic stimulation in humans, showing localized and network-level brain responses.

Common Fronto-temporal Effective Connectivity in Humans and Monkeys

The paper identifies common effective connectivity patterns between auditory cortex and fronto-temporal regions in humans and monkeys using functional imaging and electrical stimulation.

Intracranial electrical stimulation alters meso-scale network integration as a function of network topology

This study shows that intracranial electrical stimulation alters meso-scale network integration depending on the topological role of the stimulated brain regions.

Focal cortical surface cooling is a novel and safe method for intraoperative functional brain mapping

This paper evaluates the safety of focal cortical cooling as an alternative to electrical cortical stimulation for intraoperative functional brain mapping, finding no intraoperative seizures and comparable post-operative outcomes.

Oscillatory correlates of auditory working memory examined with human electrocorticography

This study investigates oscillatory activity in human brain regions during auditory working memory using electrocorticography, finding sustained low-frequency increases in medial temporal lobe regions.

Human es-fMRI Resource: Concurrent deep-brain stimulation and whole-brain functional MRI

The paper presents a human es-fMRI resource with data from 26 patients undergoing deep-brain stimulation and whole-brain functional MRI, providing raw and preprocessed data for analysis.

FMRIPrep: a robust preprocessing pipeline for functional MRI

fMRIPrep, a BIDS-driven, self-adapting fMRI preprocessing pipeline, earned above-acceptable expert quality ratings on 50 of 54 OpenfMRI datasets and introduced less smoothing than FSL feat.

Causal Mapping of Emotion Networks in the Human Brain: Framework and Preliminary Findings

The paper introduces a framework combining es-fMRI and causal discovery to map emotion networks in the human brain and presents preliminary findings from resting-state datasets and case studies.

Intracranial Markers of Conscious Face Perception in Humans

This study identifies brain activity patterns in the fusiform gyrus and superior temporal sulcus that distinguish seen from unseen faces and upright from inverted faces using ECoG data.

Contents of Consciousness Investigated as Integrated Information in Direct Human Brain Recordings

The paper tests if integrated information theory applies to conscious experience by analyzing brain recordings and finding that integrated information structures classify visual experiences more accurately than other measures.