Geoffrey K. Aguirre

A neural compass in the human brain during naturalistic virtual navigation

This study identifies brain regions in humans that maintain a consistent directional representation during naturalistic virtual navigation.

Amplifying and ameliorating light avoidance in mice with photoreceptor targeting and CGRP sensitization

This study investigates the photoreceptor basis of light avoidance in mice and shows that CGRP sensitization enhances ipRGC-mediated light avoidance.

Daily light exposure habits of youth with migraine: A prospective pilot study

This study measures light exposure in youth with migraine using wearable devices and finds phase shifts in light exposure patterns between chronic and non-chronic migraineurs.

The tilt illusion arises from an efficient reallocation of neural coding resources at the contextual boundary

The paper shows that the tilt illusion results from increased neural coding precision for stimuli similar to an oriented surround, using psychophysical and fMRI data from humans.

Temporal dynamics of human color processing measured using a continuous tracking task

The paper measures temporal dynamics of human color processing using a tracking task and finds similar elliptical response contours for detection and tracking, but reduced sensitivity to S-cone signals in tracking.

Network structure influences the strength of learned neural representations

The paper shows that the structure of a temporal sequence affects how well stimuli are represented in the brain, with modular graphs leading to better prediction and higher dimensionality in visual areas.

Temporal sensitivity for achromatic and chromatic flicker across the visual cortex

This study measures temporal sensitivity of visual cortex responses to achromatic and chromatic flicker stimuli across different cortical areas and eccentricities.

Cone-driven, geniculo-cortical responses in canine models of outer retinal disease

The paper uses fMRI to assess cone-driven responses in canine retinal disease models, finding preserved responses in some models and restored function in NPHP5-CRD2 after gene augmentation.

A measure of the somatosensory blink reflex to parametric variation of mechanical stimulation

This study develops a parametric model linking trigeminal nerve stimulation intensity to blink response properties, finding a laterality effect in half-response thresholds.

Retinal ganglion cell endowment is correlated with optic tract fiber cross section, not density

The paper finds that retinal ganglion cell endowment correlates with optic tract cross section, not density, and that anatomical variations are locally correlated along the visual pathway.

Persistent horizontal and vertical, MR-induced nystagmus in resting state Human Connectome Project data

This study characterizes MR-induced nystagmus in resting state HCP data at 3T, finding persistent horizontal and vertical eye movements with no significant adaptation.

Melanopic stimulation does not affect psychophysical threshold sensitivity for luminance flicker

This study investigates whether melanopsin stimulation affects sensitivity to luminance flicker and finds no significant effect.

Enhanced reflexive eye closure is mediated by ipRGC signals and is specific to migraine with visual aura

The paper assesses the role of ipRGCs and cones in reflexive eye closure as a measure of photophobia in migraine, finding enhanced responses in MwA compared to other groups.

A Quadratic Model Captures the Human V1 Response to Variations in Chromatic Direction and Contrast

The paper develops a quadratic color model (QCM) to explain human V1 BOLD fMRI responses to chromatic direction and contrast variations, finding it matches a GLM with fewer parameters.

FlywheelTools: Data Curation and Manipulation on the Flywheel Platform

FlywheelTools provides software for reproducible data curation and manipulation on the Flywheel platform, addressing challenges in converting neuroimaging data to BIDS format.

Developmental effects on pattern visual evoked potentials characterized by principal component analysis

This paper uses PCA to analyze prVEP data across developmental ages, revealing age and sex-related changes in visual evoked potential patterns.

A model of the appearance of the moving human eye

This paper presents a physically accurate model of the human eye's appearance during movement, enabling the estimation of eye pose and biometric parameters from images.

The influence of axial length upon the retinal ganglion cell layer of the human eye

The paper examines how axial length affects retinal ganglion cell layer thickness and volume, finding a positive relationship between axial length and GCL tissue volume.

QSIPrep: An integrative platform for preprocessing and reconstructing diffusion MRI

QSIPrep is a software platform for preprocessing diffusion MRI data that supports multiple sampling schemes and ensures reproducibility through standardized workflows and quality measures.

A neural correlate of visual discomfort from flicker

The paper links increased visual cortical activation to visual discomfort from flicker by measuring neural responses and discomfort ratings in migraineurs and controls.

Selective amplification of ipRGC signals accounts for interictal photophobia in migraine

This study investigates how melanopsin and cone signals contribute to photophobia in migraine and finds that migraineurs amplify ipRGC signals specifically for discomfort, not pupil responses.

A model of the entrance pupil of the human eye

This paper presents a ray-traced model of the human eye's entrance pupil that accurately reproduces empirical measurements of its shape.

Individual differences in response precision correlate with adaptation bias

The paper examines how individual differences in response precision correlate with adaptation bias in perceptual tasks using a Bayesian framework.

Pulses of melanopsin-directed contrast produce highly reliable pupil responses that are insensitive to a change in background radiance

This study measures pupil responses to melanopsin-directed contrast pulses and finds they are reliable and insensitive to background radiance changes.

Adaptation decorrelates shape representations

The paper tests if visual adaptation decorrelates shape representations in humans using behavioral and fMRI experiments, finding improved discrimination and decorrelation in object-selective cortex.

Predicting future learning from baseline network architecture

The paper predicts future motor learning from baseline sensorimotor network connectivity in humans.

The Human Visual Cortex Response To Melanopsin-Directed Stimulation Is Accompanied By A Distinct Perceptual Experience

The paper investigates the perceptual effects of melanopsin-directed stimulation and finds a distinct cortical response and conscious percept.