Roland Kühne

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1. The structure and function of an auditory giant neuron in the CNS of the thoracic and head ganglia of the bush cricketDecticus verrucivorus are described. 2. The neuron extends from the abdomen to the supraesophageal ganglion and has several branches, mainly directed toward the midline, in each ganglion of the central nervous system. 3. Dendritic(More)
Auditory neurons ascending to the supraesophageal ganglion from the ventral cord of the migratory locust,Locusta migratoria, were examined for alterations in the spike response during conduction in the axons. In each experiment the responses of a given neuron were recorded, with glass microcapillaries, in succession at different stations in the central(More)
In grasshoppers, the auditory and vibrational senses converge on the same ventral-cord neurons. All neurons in the ventral cord that discharge impulses in response to either airborne-sound or vibration stimuli also receive synaptic inputs from the other sensory system. The latter elicit either subthreshold excitation or inhibition. The coding of the(More)
Coding of auditory signals in the entire ventral-cord pathway of the migratory locust,Locusta migratoria, has been studied by extracellular recording of the responses of ascending neurons. In order to exclude errors due to variation in the responses of neurons of a given type among different individuals, an effort was made to record succesively from the(More)
1. A new type of ascending interneurone (AN3) responding to airborne sound has been characterised morphologically and physiologically in the prothoracic ganglion of the cricketGryllus campestris (Fig. 1). 2. The structure of AN3 is generally similar to that of two ascending neurons described previously (AN1, AN2). 3. AN3 is highly tuned and very sensitive(More)
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