ISSN:
1432-1351
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary 1. With glass microelectrodes in the metathoracic ganglion ofLocusta migratoria, the activity of auditory receptors in Müller's organ was recorded and the fibers were stained with Lucifer Yellow (part D of Figs. 3–6). Responses to (i) acoustic stimuli, (ii) movement stimuli and (iii) the two stimuli in combination were recorded. 2. Sound pulses (10 ms, 10/s, 70 dB, 4 or 12 kHz) elicited the typical response, ca. 1–4 action potentials for each pulse, with a latency of 8–11 ms (parts A and F of Figs. 3–6). 3. Sinusoidal rotation of the hindleg ipsilateral to the tympanal organ, with a frequency of 2.5–20 Hz and an amplitude of 1–5 mm at the femur tip (Fig. 1), elicited activity phase-coupled to the movement in a manner depending on the individual receptor (parts B and E of Figs. 3–6). When acoustic and movement stimuli were presented simultaneously, reciprocal effects on the responses to the two kinds of stimuli were observed. The auditory response could be greatly reduced, and even almost suppressed in certain phases of the movement (parts C, G and I of Figs. 3–6). When an auditory response occurred, the subsequent movement response could be diminished or eliminated altogether (part I of Figs. 3–6).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00612433
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