Sophie Bagur

Sound offset responses become highly informative in the auditory cortex

The paper analyzes offset responses across auditory brain regions in mice, finding that cortical offset responses provide more accurate sound encoding than subcortical ones.

The geometry of cortical sound processing in slow wave sleep

The paper examines how sound processing in the auditory cortex changes during slow wave sleep compared to wakefulness, finding that sound representations remain geometrically distinct but are dampened and intermittently gated.

Hippocampal reactivation of aversive experience enables safety learning and slow-breathing state for recovery from stress

The paper identifies a slow-breathing recovery state in mice after threat avoidance, linked to hippocampal replay of aversive experiences and impaired by SWR suppression.

Feature-dependent decorrelation of sound representations across the auditory pathway

The paper shows that auditory feature representations develop gradually through stages of the auditory pathway, with specific improvements at certain stages.

Parallel mechanisms signal a hierarchy of sequence structure violations in the auditory cortex

The paper shows that mice use distinct cellular mechanisms to predict different levels of regularity in sound sequences, with VIP neurons signaling global structure violations during wakefulness.

Massive perturbation of sound representations by anesthesia in the auditory brainstem

The paper shows that anesthesia drastically alters single neuron sound responses in the auditory brainstem, but has minimal effect on population-level parameters.

Distinction between slow waves and delta waves sheds light to sleep homeostasis and their association to hippocampal sharp waves ripples

The paper distinguishes between slow waves and delta waves during NREM sleep, showing type-1 slow waves are homeostatically regulated and linked to down states, while type-2 slow waves confuse the timing of hippocampal sharp-wave ripples.

Social defeat induces REM sleep fragmentation through the PFC-VLPO pathway

This study shows that the PFC-VLPO pathway regulates REM sleep fragmentation in response to social defeat stress.

A spatial code for temporal cues is necessary for sensory learning

The paper shows that spatial representations, not temporal patterns, are necessary for sensory learning in mice using optogenetic stimulation and neural recordings.

Enhanced perceptual task performance without deprivation in mice using medial forebrain bundle stimulation

This paper introduces medial forebrain bundle stimulation as a reward alternative to water deprivation in mice, enabling stable task performance without metabolic stress.

Dissociation of fear initiation and maintenance by breathing-driven prefrontal oscillations

This study shows that breathing-driven prefrontal oscillations sustain fear maintenance in mice without affecting its initiation.

Improved sleep scoring in mice reveals human-like stages.

This paper introduces a new classification of NREM sleep stages in mice, revealing human-like stages and their association with neuronal activity changes.

Harnessing sleep/wake state tracking by olfactory bulb oscillations to perform fully brain-based sleep scoring in mice

This paper develops a brain-based sleep scoring method using olfactory bulb and hippocampal oscillations in mice, achieving high accuracy comparable to EMG and video tracking.

Task Engagement Enhances Population Encoding of Stimulus Meaning in Primary Auditory Cortex

The paper shows that primary auditory cortex encodes stimulus meaning more during task engagement than passive listening, with population-level changes in encoding.