First noncontact millimeter-wave radar measurement of heart rate in great apes: Validation in chimpanzees (Pan troglodytes)

Authors: T. Matsumoto, I. Iwata, T. Sakamoto, S. Hirata

Publication/Journal: Am J Primatol

Keywords: *Pan troglodytes/physiology, *Radar, animal welfare, animals, Electrocardiography/veterinary/instrumentation, female, heart rate, male, millimeter‐wave ultrawide‐band array radar, noncontact measurement of vital sign, stress

2024

Effects of Relocation and Individual and Environmental Factors on the Long-Term Stress Levels in Captive Chimpanzees (Pan troglodytes): Monitoring Hair Cortisol and Behaviors

Authors: Y. Yamanashi, M. Teramoto, N. Morimura, S. Hirata, M. Inoue-Murayama, G. Idani

Publication/Journal: Plos One

Keywords: chimpanzee, hair cortisol, relocation, stress

2016

Nasal temperature drop in response to a playback of conspecific fights in chimpanzees: A thermo-imaging study

Authors: Fumihiro Kano, Satoshi Hirata, Tobias Deschner, Verena Behringer, Josep Call

Publication/Journal: Physiology & Behavior

Keywords: aggression, emotion, great ape, skin temperature, thermo-imaging

2016

Social grooming network in captive chimpanzees: does the wild or captive origin of group members affect sociality?

Authors: M. Leve, C. Sueur, O. Petit, T. Matsuzawa, S. Hirata

Publication/Journal: Primates

Keywords: *tool use, behavior, behavioral development, biomedical-research, differences, early rearing, grooming, group-size, management, mountains-national-park, pan troglodytes, patterns, primates, social network analysis, tanzania, well-being, zoology

2016

Trade-offs between feeding and social companionship in cattle: Intra-animal consistency over short and extended periods

Authors: Masahiko Hirata, Ikuko Taketomi, Yuka Matsumoto, Shotaro Kubo

Publication/Journal: Applied Animal Behaviour Science

Keywords: feeding, intra-individual consistency, sociability, trade-off

2013

Assessing chimpanzee personality and subjective well-being in Japan

Authors: Weiss, A.,Inoue-Murayama, M.,Hong, K.,Inoue, E.,Udono, T.,Ochiai, T.,Matsuzawa, T.,Hirata, S.,King, J. E.

Publication/Journal: American Journal of Primatology

Keywords: age, chimpanzee, culture, personality, sex, well-being

2009

A Note on the Responses of Chimpanzees (Pan troglodytes) to Live Self-Images on Television Monitors

Authors: S. Hirata

Publication/Journal: Behavioural Processes

Keywords: chimpanzee, live-video image, self-recognition

2007