Pascal Fries

The paper investigates variability in local field potentials (LFP) and proposes a new metric, CV(log(power ratio)), to quantify power variability, showing its reduction with stimulation and potential inverse relation to power changes.

This paper introduces a hybrid micro-ECoG array for multi-scale brain activity recording and functional mapping across species.

The paper evaluates a framework for statistical inference with small sample sizes (N=3) and shows its error rate depends on outcome typicality, suggesting limited utility for population inference.

The paper investigates how stimulus repetition affects neuronal firing rates and gamma-band synchronization in macaque V1, finding opposite effects compared to classical results, which may relate to reward predictability.

This study shows that saccadic reaction time increases with target eccentricity, but scaling targets by foveal magnification eliminates this effect in some tasks, suggesting a role for attentional orienting.

The paper investigates action-related modulations of perceptual performance and finds that these modulations depend on internal states like attention and decision criteria, specifically at ~17 Hz.

The paper models learning effects in macaque visual cortex using Dynamic Causal Modeling to explain repetition-induced increases in gamma synchronization.

SyNCoPy is a Python package for analyzing large-scale electrophysiological data, offering time, frequency, and connectivity analyses with parallel processing and interoperability.

This paper introduces a method for more accurate phase estimation at the edge of epochs in neuronal rhythms, showing improved performance on simulated and empirical datasets.

This paper introduces a Riemannian geometry-based classification method for fNIRS data, achieving higher accuracy in brain-state classification compared to traditional methods.

This study shows that top-down signals modulate gamma-band synchronization and stimulus information encoding in V1 without affecting firing rates.

The paper uses snRNA-seq to analyze layer 4 heterogeneity in rhesus macaque visual cortex, identifying distinct subtypes and linking them to neurodevelopmental disorders.

The paper shows that gamma and beta synchronization between brain areas improves behavioral performance during selective attention tasks.

This study shows that primate saccade generation is rooted in a rhythmic source, consistent across human, macaque, and marmoset species.

The paper models selective visual attention in macaques using Dynamic Causal Modeling to show that intrinsic V1 modulation explains attention effects in V1-V4 communication through changes in inhibition.

This paper demonstrates the ability to record in vivo magnetic signals corresponding to single-neuron action potentials using miniaturized GMR sensors in anesthetized rats.

This paper describes long-lasting titanium implants for macaques, with no failures reported and longevity exceeding 9 years.

This paper develops a method to record and optogenetically manipulate neural activity in awake, behaving marmosets, demonstrating its use in recording from V1 and V6 and showing behavioral effects from optogenetic activation in V6.

The paper uses ECoG to study how the action observation network integrates information during action observation, finding top-down beta and bottom-up gamma oscillations in predictable and unpredictable actions respectively.

The paper demonstrates a perceptual illusion where a visually perceived oscillation intensity is influenced by phase leads between competing oscillatory stimuli.

The paper corrects a previous conclusion about false-positive rates in periodicity analysis by demonstrating an incorrect null-hypothesis implementation and showing low false-positive rates with a correct approach.

The paper compares methods for quantifying rhythmicity in perceptual reports using simulated data and evaluates their sensitivity, specificity, and D-prime.

The paper shows that human visual gamma responses to color stimuli are not biased toward red when thalamic input strength is equalized, finding no difference between red and green stimuli but weak responses to blue.

The paper shows that in macaque V1, repeated visual stimuli lead to reduced firing rates and increased gamma-band synchronization, specific to the stimulus and its location, and generalize to natural images.

The paper shows that visual exposure enhances stimulus encoding and persistence in primary visual cortex by reducing neuronal selectivity and increasing response range, leading to better stimulus reconstruction.

The paper shows that repeated visual stimuli cause stimulus-specific changes in gamma-band activity and functional connectivity in human visual cortex, with effects persisting after a delay.

The paper uses optogenetics to show that cortical resonance selectively transmits coherent input components through feedback inhibition and spike-frequency adaptation.

This paper develops methods for visual neuroscience in marmosets, enabling head-free eye tracking and efficient receptive field mapping without moving stimuli.

The paper investigates how anatomical connection strength relates to rhythmic synchronization in macaque cortex, finding that strength predicts synchronization and vice versa, with frequency and direction specificity.