Martin Stemmler

On the neural origin of hexadirectional fMRI modulations

The paper proposes experiments to distinguish mechanisms underlying hexadirectional fMRI modulations linked to grid-cell activity.

The lattice scales of grid-cell activity

The paper reanalyzes grid-cell datasets and finds that scale ratios follow a geometric progression, refuting a developmental theory and supporting an efficient-coding explanation.

A multi-ring shifter network computes head direction in zebrafish

The paper identifies a three-ring shifter network in zebrafish that computes heading direction, showing convergent evolution with the Drosophila compass mechanism.

Mental calculation speeds surpass known limits for high-level cognition

The paper analyzes mental calculation speeds in international competitions, finding rates exceeding 215 bit/s, surpassing previous estimates for high-level cognition.

Grid cells anticipate the animal's future movement

The paper investigates whether grid cells encode future position by analyzing how shifting spikes in space or time affects firing field properties in mice.

Grid Codes versus Multi-Scale, Multi-Field Place Codes for Space

This paper compares multi-scale, multi-field place codes with grid codes in simulations, finding grid codes outperform in decoding accuracy but are less robust to noise and lesions.

Spike afterpotentials shape the in-vivo burst activity of principal cells in medial entorhinal cortex

The paper investigates how spike afterpotentials influence burst activity in medial entorhinal cortex neurons during in-vivo behavior, finding that DAPs are associated with specific burst patterns in Layer II cells.

Anticipatory neural activity improves the decoding accuracy for dynamic head-direction signals

The paper shows anticipatory firing in head-direction neurons improves decoding accuracy by reducing temporal bias in dynamic head-direction signal estimation.

GABA regulates resonance and spike rate encoding via a universal mechanism that underlies the modulation of action potential generation

The paper shows GABA modulates action potential dynamics through a universal mechanism, confirmed by experiments and modeling in different neurons.

Fundamental Structure and Modulation of Neuronal Excitability: Synaptic Control of Coding, Resonance, and Network Synchronization

This paper identifies a universal sequence of dynamic transitions in neuronal excitability controlled by synaptic activity and demonstrates its implications for network synchronization and information processing.