. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 294 R. B. SILVER ET Figure 1. (A) Individual quantum emission domains (QEDs) activated by single action potentials at a preterminal appear as white chevrons when recorded at 30 frames per second (fps). A few of these QEDs show some filling between the stripes, indicating that those events began close to either the start or end of a single video field and overlapped to the preceding or following video field. The two QEDs seen in the lower right of this panel occurred in separate odd and even fields. (B) Individual QEDs a
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 294 R. B. SILVER ET Figure 1. (A) Individual quantum emission domains (QEDs) activated by single action potentials at a preterminal appear as white chevrons when recorded at 30 frames per second (fps). A few of these QEDs show some filling between the stripes, indicating that those events began close to either the start or end of a single video field and overlapped to the preceding or following video field. The two QEDs seen in the lower right of this panel occurred in separate odd and even fields. (B) Individual QEDs activated by single presynaptic spikes appear as white chevrons recorded at 200 fps, indicating that the entire QED occurred within the sampling period of the video field. Note that in this case, unlike that in panel A. all of the QEDs appear as chevrons, indicating that no observed QEDs overlapped two consecutive video fields. (C) The first video frame recording of a single evoked QED (red) superimposed onto its point of origin in a synaptic preterminal (blue). The red characters surrounding the central image are typical of the display from the Kodak high-speed video camera. (D) The time course of an evoked QED, and one for a single QED emitted from aequorin expressed into calcium buffer, recorded at a video rate of 4000 fps. Spots of light from single video frames are displayed as a row of spots at the same horizontal level as the terms "Evoked" and "; The intensity profiles of each of the individual spots are seen directly above their respective spots. The spots and intensity profiles were printed in pseudocolor to aid in visualization; black and purple are 0 to low intensity, increasing through green, yellow, and orange to the highest values of red and white (8-bit gray-scale value of 255). These values are correlated with the luminance intensity incident to the faceplate of the dual microchannel plate (dMCP) intensifier. Small white po
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
