Rats' heart rate and grooming activity in the open field.
D000818:Animals; D004777:Environment; D005106:Exploratory Behavior; D005239:Fear; D006120:Grooming; D006339:Heart Rate; D008027:Light; D008297:Male; D009622:Noise; D051381:Rats; D013686:Telemetry; D013997:Time Factors