Ben Shofty

Electrophysiological Dynamics of Default Network Suppression

The paper investigates network competition in the brain using electrophysiology and neuroimaging, finding temporally layered antagonism between default and task-related networks, with distinct patterns in the hippocampus.

Low-dimensional factorized neural computations underlie risk-adaptive choices

The paper uses deep reinforcement learning to model risk-adaptive decision-making strategies and identifies low-dimensional neural dynamics associated with high-performing strategies in humans.

Temporal Processing during Decision Making under Uncertainty.

The paper investigates neural representations of time during decision-making under risk using human intracranial electro-physiology and a temporal convolution network to predict response timing.

Polysemanticity in human hippocampal neurons

This study shows that human hippocampal neurons use polysemantic coding, where neurons represent multiple unrelated semantic features through high-dimensional superposition, enabling efficient contextualization of meaning.

A geometric foundation for word meaning in the brain

The paper shows that semantic features in word meaning are encoded in the brain through geometric structures similar to those in language models.

Asymmetric Reinforcement Learning Explains Human Choice Patterns in Decision-making Under Risk

This study shows that an asymmetric reinforcement learning model better explains human decision-making under risk than symmetric models.

Increased Aperiodic Exponents Track Depression Symptom Severity

This study shows that aperiodic exponents from intracranial EEG can differentiate depression symptom severity and correlate with specific brain regions and networks.

The neural basis of emotional generalization in empathy

This study investigates how the brain generalizes emotions across individuals, finding that the insula encodes emotions and persons separately, enabling cross-person generalization.

Human single-neuron activity is modulated by intracranial theta burst stimulation of the basolateral amygdala

This study examines how theta burst stimulation of the basolateral amygdala modulates single-neuron activity in humans during a memory task, finding that ~30% of neurons show heterogeneous responses.

Cell-type specific responses to single-pulse electrical stimulation of the human brain

This study examines how human neurons respond to single-pulse electrical stimulation, finding that most neurons show firing rate suppression, with differences based on cell type and stimulation distance.

Human brain network control of creativity

This study uses human brain recordings to show that creative thinking is associated with distinct neural states in the default mode and dorsal attention networks.

Insula uses overlapping codes for emotion in self and others

The paper shows that the insula uses overlapping neural patterns for recognizing self and others' emotions, while other regions use different patterns.

Prefrontal network engagement by deep brain stimulation in limbic hubs

This study investigates the neurophysiological effects of deep brain stimulation (DBS) on prefrontal networks in limbic hubs, showing differential modulation of gamma oscillations and subject-specific responses.

Default mode network spatio-temporal electrophysiological signature and causal role in creativity

This study investigates the spatio-temporal electrophysiological patterns of the default mode network (DMN) during creativity and mind wandering, revealing distinct dynamics and causal roles in creative thinking.

Spontaneous Neuronal Oscillations in the Human Insula are Hierarchically Organized Traveling Waves

This study investigates the electrophysiological dynamics of the human insula using intracranial EEG, revealing hierarchical organization of theta and beta oscillations as traveling waves.

Intracranial EEG spectral feature analysis and focal brain stimulation reveal affective specialization within dorsal anterior cingulate cortex

The paper uses intracranial EEG to analyze spectral features in the dorsal anterior cingulate cortex, revealing hemispheric specialization for valence and intensity processing and showing causal effects of stimulation on emotional face perception.

Brain-wide structural and functional disruption in mice with oligodendrocyte specific Nf1 deletion is rescued by inhibition of NOS

This paper shows that Nf1 deletion in oligodendrocytes causes brain structural and functional disruptions in mice, which are rescued by NOS inhibition.

Loss of function in the autism and learning disabilities associated gene Nf1 disrupts corticocortical and corticostriatal functional connectivity in human and mouse

This study shows that Nf1 loss-of-function disrupts corticocortical and corticostriatal functional connectivity in both human NF1 patients and Nf1+/- mice.