A subtype of ultrasonic vocalizations during highly palatable food consumption in rats identified by machine learning-assisted classification
Koshi Murata, Yuki Ikedo, Takashi Ryoke, Kazuki Shiotani, Hiroyuki Manabe, Kazuki Kuroda, Hitoshi Yoshimura, Yugo Fukazawa
The paper identifies a novel 40-kHz inverted-U ultrasonic vocalization subtype in rats during chocolate consumption using machine learning, showing it is opioid-modulated and linked to reward states.
eNeuro · Jul 17, 2026Peer-reviewedNeuroscience