. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 228 FUZESSERY, CARR, AND ACHE Response parameters of maxinium impulse frequency, number of impulses/ response and response duration were quantified by playing taped responses through a window discriminator and electronic counter (Haer 7400 series). The trans- formed output was displayed on a storage oscilloscope in the form of a post-stimu- lus time histogram of the impulses/100 msec over the duration of the response. Maximum impulse frequency was determined by observing the greatest number of impulses collected in a single
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 228 FUZESSERY, CARR, AND ACHE Response parameters of maxinium impulse frequency, number of impulses/ response and response duration were quantified by playing taped responses through a window discriminator and electronic counter (Haer 7400 series). The trans- formed output was displayed on a storage oscilloscope in the form of a post-stimu- lus time histogram of the impulses/100 msec over the duration of the response. Maximum impulse frequency was determined by observing the greatest number of impulses collected in a single 100 msec time interval. The number of impulses/ response was determined as the sum of the impulses in all time intervals over the duration of the response. The index of relative stimulatory capacity (RSC) used in this study to compare stimulants was calculated as the number of impulses/ response elicited by a given compound divided by the number of impulses/response elicited by taurine X 100. Hence, the RSC value for taurine on each receptor is 100. In a few cases where chemoreceptors were spontaneously active, an index of average baseline activity in the absence of chemical stimulation was calculated and subtracted from the activity elicited by test compounds in that individual receptor. RESULTS Preliminary tests of tanrine—dose/response relationships Taurine was tested over a concentration range of 10'11 to 10~4 M on 18 lateral and 18 medial filament receptors. The average values for maximum impulse fre- quency, impulses/response and response duration are shown in Figure 2. Maxi- 100- 80- z o Q- - 40- 20- IMP/SEC (MAX). IMP/RESPONSE. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
