Horst Andreas Obenhaus

OCTRON - a general purpose segmentation and tracking pipeline for behavioral experiments

OCTRON provides a segmentation and tracking pipeline for behavioral experiments, validated across species and setups.

Protocol for calcium imaging of acute brain slices from Octopus vulgaris hatchlings during application of neurotransmitters

This paper describes a protocol for calcium imaging in Octopus vulgaris brain slices to study single-cell responses to neurotransmitters.

Novel dopaminergic neurotransmission in the Octopus visual system

The paper identifies novel dopamine and acetylcholine ionotropic receptors in the octopus visual system, revealing distinct neurochemical mechanisms compared to mammals.

Minute-scale oscillatory sequences in medial entorhinal cortex

The paper identifies minute-scale oscillatory sequences in the medial entorhinal cortex of mice, showing coordinated neural activity over extended time scales.

All-viral tracing of monosynaptic inputs to single birthdate-defined neurons in the intact brain

The paper introduces a method to trace monosynaptic inputs to single neurons in the hippocampus of wildtype mice without electroporation or tissue removal, achieving 48% success for up to 4 cells and 16% for a single cell.

Large-scale two-photon calcium imaging in freely moving mice

This paper introduces a lightweight two-photon microscope for imaging over 1,000 neurons in freely moving mice, enabling large-scale calcium imaging with high resolution and minimal behavioral disruption.

Functional network topography of the medial entorhinal cortex

The paper examines the spatial organization of neuron types in the medial entorhinal cortex and adjacent parasubiculum using two-photon microscopy, finding that grid cells cluster separately from other spatial cell types.

Tools for accurate post hoc determination of marker location within whole-brain microscopy images

The paper develops open-source Python tools for accurately mapping the location of dye-labelled probes and fluorescent cells in whole-brain microscopy images.