title: Auditory duration discrimination in the parakeet (Melopsittacus undulatus).
abstract: Two parakeets were trained by a method of avoidance conditioning to respond to duration differences in successively occurring tone bursts. Difference limens for duration were obtained at six durations (20-160 ms) of a 2.86-kHz tone presented at a sensation level of 60 dB. Calculations of the Weber fractions at each duration showed threshold values which compare favorably to similar measures for man ranging between 0.10 and 0.20.
mesh_terms: D000818:Animals; D001307:Auditory Perception; D004056:Differential Threshold; D006801:Humans; D010240:Parakeets / Q000502:physiology*; D011563:Psittaciformes / Q000502:physiology*; D013998:Time Perception