Neuronal substrates involved in processing of communicative acoustic signals in tree shrews: a 2-deoxyglucose study.
Autoradiography with [14C]2-deoxyglucose (2-DG) was used to map functional differences in activation of the central auditory pathway in adult tree shrews during presentation of particular acoustic stimuli (low frequency, LFS, and high frequency, HFS, pure sinus tones; social calls, SC). Individuals stimulated with broadband-noise (BBN) were used as controls. Stimulus-specific labelling was found in autoradiographs of cochlear nucleus, superior olivary complex, inferior colliculus and auditory cortex. These findings imply a tonotopic organization at least in these auditory brain areas and indicate differences in the processing of sounds with different functional significance.
Binz
H
H
Institute of Zoology, University of Stuttgart-Hohenheim, F.R.G.
Zurhorst
C
C
Zimmermann
E
E
Rahmann
H
H
D000161:Acoustic Stimulation; D000818:Animals; D001301:Audiometry, Pure-Tone; D001303:Auditory Cortex / Q000378:metabolism / Q000502:physiology*; D001306:Auditory Pathways / Q000378:metabolism / Q000502:physiology*; D003056:Cochlear Nerve / Q000502:physiology; D003837:Deoxy Sugars / Q000493:pharmacokinetics*; D003847:Deoxyglucose / Q000493:pharmacokinetics*; D005260:Female; D007245:Inferior Colliculi / Q000378:metabolism / Q000502:physiology*; D009847:Olivary Nucleus / Q000378:metabolism / Q000502:physiology*; D012249:Rhombencephalon / Q000502:physiology; D014418:Tupaiidae / Q000502:physiology*; D014828:Vocalization, Animal / Q000502:physiology
D003837:Deoxy Sugars; D003847:Deoxyglucose