Biology

Bilateral auditory processing studied by selective cold-deactivation of cricket hearing organs [RESEARCH ARTICLE]

Xinyang Zhang and Berthold Hedwig

We studied bilateral processing in the auditory ON neurons of crickets using reversible cold-deactivation of the hearing organs by means of Peltier elements. Intracellular recordings of the neurons’ activity in response to acoustic stimuli were obtained, while either the ipsilateral or the contralateral hearing organ was cold-deactivated. Afferent activity was abolished at a temperature of about 10°C. In ON1 contralateral inhibition has no effect on the latency and amplitude of the phasic onset activity, it enhances the decline of the onset activity and decreases the subsequent tonic spiking response to acoustic stimuli. As a consequence the phasic onset activity becomes more salient and reciprocal inhibition may support the detection of sound pulses. Contralateral inhibition had a significant impact on the tonic ON1 response, in line with its presumed function to enhance the bilateral auditory contrast. In ON2, experiments confirmed a bilateral excitatory input, with the ipsilateral input dominating the response, and no inhibitory coupling between the ON2 neurons.

Source link




Related posts

PGE2 accounts for bidirectional changes in alveolar macrophage self-renewal with aging and smoking

Newsemia

New patent for Intercept Pharms drug OCALIVA

Newsemia

Ectopic Methylation of a Single Persistently Unmethylated CpG in the Promoter of the Vitellogenin Gene Abolishes Its Inducibility by Estrogen through Attenuation of Upstream Stimulating Factor Binding [Research Article]

Newsemia

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More

Privacy & Cookies Policy