The recovery cycle of bat duration-selective collicular neurons varies with hunting phase.
During hunting, duration selectivity and recovery cycle underlie a bat's ability to determine echo duration and target distance (echo ranging). This study shows that the recovery cycle of most duration-selective neurons in the bat central nucleus of the inferior colliculus neurons varies with biologically relevant pulse-echo (P-E) duration and amplitude. As such, neurons with short best duration recover rapidly when stimulated with P-E pairs with short duration and small P-E amplitude difference, whereas neurons with long best duration recover rapidly when stimulated with P-E pairs with long duration and large P-E amplitude difference. These data indicate that different groups of duration-selective neurons underlie the bat's ability to effectively perform echo recognition and ranging during different phases of hunting.
Wang
Xin
X
College of Life Sciences, Central China Normal University, Wuhan, People's Republic of China.
Luo
Feng
F
Wu
Fei-Jian
FJ
Chen
Qi-Cai
QC
Jen
Philip H S
PH
D000200:Action Potentials / Q000502:physiology; D000818:Animals; D002685:Chiroptera / Q000502:physiology*; D004455:Echolocation / Q000502:physiology*; D004594:Electrophysiology; D007245:Inferior Colliculi / Q000166:cytology / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D011235:Predatory Behavior / Q000502:physiology*