Hisao Nishijo

Unsupervised decomposition of natural monkey behavior into a sequence of motion motifs

This paper introduces SMP, an unsupervised algorithm for decomposing primate behavior into motion motifs, outperforming existing methods and visualizing neural manipulation effects.

A novel dopaminergic critic signal triggered by erroneous strategy choices in mice training in operant tasks

The paper identifies a novel dopaminergic critic signal in mice during operant tasks that predicts correct/incorrect choices before reward signals, suggesting a role in learning and strategy adjustment.

Establishing an AI-based evaluation system that quantifies social/pathophysiological behaviors of common marmosets

This paper develops an AI system to quantify social and pathophysiological behaviors in common marmosets using 3D pose estimation and unsupervised analysis.

Rhythmic oscillations in the midbrain dopaminergic nuclei in mice

This study examines rhythmic oscillations in midbrain dopaminergic nuclei of mice during task performance, finding phase-locked activity in specific frequency bands linked to behavioral events.

Acoustic camera system for measuring ultrasound communication in mice

This paper introduces USVCAM, an acoustic camera system for faster and simpler localization of ultrasonic vocalizations in mice, demonstrating its use in analyzing social communication in a home cage.

Chemogenetic activation of nigrostriatal dopamine neurons in freely moving common marmosets

This study uses DREADD technology in common marmosets to show that chemogenetic activation of nigrostriatal dopamine neurons induces contralateral rotation behavior.

MacaquePose: A novel 'in the wild' macaque monkey pose dataset for markerless motion capture

The paper introduces MacaquePose, a dataset for markerless motion capture of macaques, showing neural network performance comparable to human-level pose estimation.

Reward-associated configural cues elicit theta oscillations of rat retrosplenial neurons phase-locked to LFP theta cycle

The paper shows that reward-associated configural cues elicit theta oscillations in rat retrosplenial neurons phase-locked to LFP theta cycles during memory retrieval.