Tenseness relaxed by vocalizing, illustrated by horses (Equus caballus) whinnying
Publication/Journal: Journal of Comparative Psychology
Keywords: *animal vocalizations, *physiological arousal, heart rate, horses, mammals
2015
Human laughter, social play, and play vocalizations of non-human primates: an evolutionary approach
Publication/Journal: Behaviour
Keywords: acoustic analysis, evolution of, human laughter, laughter, primate play vocalizations, social play, tickling
2005
“Laughing” rats and the evolutionary antecedents of human joy?
Publication/Journal: Physiology & Behavior
Keywords: addictions, attention deficit hyperactivity disorders, joy, laughter, mood disorders, rats, ultrasonic vocalizations
2003