Ranganatha Sitaram

Odor cueing of declarative memories during sleep enhances coordinated spindles and slow oscillations

This study shows that odor cueing during sleep increases sleep spindles and slow oscillations, which may enhance declarative memory consolidation.

A new adaptive procedure for estimating perceptual thresholds: the effects of observer bias and its correction.

This paper introduces a new adaptive method for estimating perceptual thresholds that accounts for observer bias and validates it through simulations.

Functional dynamics underlying near-threshold perception of facial emotions: a magnetoencephalography investigation.

This study investigates the neural mechanisms of facial emotion perception near the threshold using magnetoencephalography, finding distinct fronto-parietal network activity patterns for correct and incorrect recognition.

The timing of hemodynamic changes reliably reflects spiking activity

This study shows that the timing of hemodynamic initial-dip and response better reflects spiking activity than amplitude in anesthetized monkeys.

The hemodynamic initial-dip consists of both volumetric and oxymetric changes correlated to localized spiking activity

This study identifies the initial-dip in neuroimaging signals as primarily driven by a decrease in total-hemoglobin, coupled to localized spiking activity.