Joshua B. Melander

Parallel construction of object motion from retina to cortex

The paper shows that post-retinal brain areas recompute object motion sensitivity rather than inherit it from the retina, revealing parallel specialization in motion processing.

Single-camera, calibration-free gaze estimation using corneal reflections

This paper introduces a calibration-free corneal-reflection eye tracking system for head-fixed mice using a single camera and multiple fiducial LEDs, achieving sub-degree accuracy and improving receptive field measurements.

Adaptation of retinal discriminability to natural scenes

The paper analyzes how retinal ganglion cells adapt discriminability to natural scenes using a model of neural sensitivity and variability, finding that correlated noise reduces information transmission.

The dynamic neural code of the retina for natural scenes

The paper develops a three-layer network model to predict retinal responses to natural scenes, revealing fast dynamics in ganglion cell signaling and the role of interneurons in generating the retinal code.

Information Geometry of the Retinal Representation Manifold

The paper uses information geometry to analyze retinal representations of natural stimuli, finding that noise correlations limit information rather than enhance it, and that population coding improves information transmission.

Distinct in vivo dynamics of excitatory synapses onto cortical pyramidal neurons and inhibitory interneurons

The paper uses in vivo imaging to compare synaptic dynamics between excitatory synapses on pyramidal neurons and inhibitory interneurons, finding that PV+ synapses are more stable and less heterogeneous.