Hal Blumenfeld

This paper develops a no-report tactile paradigm using eye tracking to detect conscious tactile perception without behavioral reports, finding that pupil dilation and blinking distinguish perceived from unperceived stimuli.

This study investigates the neural mechanisms underlying awareness of action by comparing aware and unaware actions, identifying both immediate and long-term neural correlates.

This study investigates how auditory stimuli can interrupt absence seizures in rats, finding that stimulus timing, conditioning, and signal power influence seizure termination.

This study investigates the mechanisms of reduced cortical cholinergic activity during focal seizures using an awake mouse model and electrophysiology, calcium imaging, and neurotransmitter sensing.

This study identifies brainstem and thalamus lesions as necessary and sufficient for coma in acute ischemic stroke, highlighting lesion location over volume in coma pathogenesis.

The paper investigates impaired consciousness in temporal lobe seizures, finding that bilateral spread is not required, onset side has no effect, and specific EEG patterns predict impaired consciousness with high accuracy.

The paper investigates shared subcortical arousal systems across sensory modalities during attention modulation using fMRI data from 1,561 participants.

This study shows that mice exhibit auditory-induced alpha/beta event-related desynchronizations (ERDs) in cortical and thalamic regions, supporting their use as a model for studying perceptual processing.

The paper investigates neural activity during auditory conscious perception and finds similar cortical and subcortical network patterns to those observed in visual perception.

This study analyzes intracranial EEG power changes in frontal lobe seizures to determine how they relate to impaired consciousness, finding distinct patterns across seizure types.

The paper investigates attentional blink as a selective control mechanism in conscious perception using behavioral and neurophysiological measures.

A preregistered multimodal neuroimaging study across 256 human participants directly tests Integrated Information Theory against Global Neuronal Workspace Theory, confirming some predictions while revealing major empirical challenges for both.

The paper investigates neuronal activity patterns in a rodent model of absence seizures, finding decreased overall firing with distinct neuronal activity patterns during seizures.

This study identifies neural mechanisms of human conscious visual perception using report-independent methods and shows involvement of large-scale subcortical and cortical networks.

This study investigates early neural activity changes associated with visual conscious perception using intracranial EEG recordings and identifies gamma power dynamics in a distributed cortical network.

The paper develops a tactile perception task and uses EEG and eye metrics to identify neural and physiological correlates of conscious tactile perception.

The paper compares loss of consciousness mechanisms in focal impaired awareness and focal to bilateral tonic-clonic seizures using intracranial EEG data from patients.

This paper describes a novel mouse model of focal limbic seizures that correlates behavioral impairment with cortical slow wave activity, similar to human temporal lobe seizures.

The paper introduces the connectivity index (CI) to grade epileptogenicity by analyzing evoked responses to electrical stimulation and finds higher CI in seizure onset zones compared to controls.

This study surveys current practices in presurgical language fMRI for epilepsy, finding significant variability in protocols, tasks, analysis methods, and expertise involvement.

This study surveys global epilepsy surgical programs on their use of presurgical language fMRI and reports mixed outcomes in localizing language cortex and predicting post-surgical function.