Showing papers on "Latency (engineering) published in 1969"
TL;DR: The transfer characteristics of disk storage devices are considered and expected seek time and expected rotational latency are taken as measures of performance for the disk.
Abstract: A major limitation for time-sharing systems is the time delay encountered in transferring records between central “fast” memory and peripheral memory devices. In this paper the transfer characteristics of disk storage devices are considered. Expected seek time and expected rotational latency are taken as measures of performance for the disk. The following aspects of disk files and their behavior are considered: the speed profile of the positioning mechanism and its effect on seek time; effects of the probability distribution of information stored on tracks; track overflow of records; dynamic queuing strategies; reduction of rotation time by buffered read techniques; and strategies for using multiple-arm devices.
63 citations
TL;DR: In this article, the effects of varied color-word combinations on verbal response latency were investigated. But the results were limited to the color word interference test, and they were not extended to other words.
Abstract: (1969). The Color-Word Interference Test: The Effects of Varied Color-Word Combinations Upon Verbal Response Latency. The Journal of Psychology: Vol. 72, No. 2, pp. 219-231.
55 citations
TL;DR: The paper aims to demonstrate the efforts towards in-situ applicability of Invertebrate cognition in the context of the land of the cat and its role in promoting regenerative behaviour.
Abstract: THE LATENCY OF RESPONSE OE SECRETORY ACINAR CELLS TO NERVE STIMULATION IN THE SUBMANDIBULAR GLAND OF THE CAT
40 citations
33 citations
TL;DR: During the management of 129 symptomatic heart block patients with either temporary trans venous or implanted transvenous and transthoracic pacemakers, four'varieties of incomplete pacemaker capture were observed in five patients, and a significant latency in activation was noted.
Abstract: The myocardial response to pacemaker stimuli is usually all or none once the myocardial threshold is exceeded. With fixed rate pacemakers, which function as artificial parasystolic foci (Nu'-nez-Dey, Zalter, and Eisenberg, 1962), the heart is captured by the regularly generated stimuli so long as the pacemaker is functional, properly positioned, and delivers its impulse outside the refractory period of the intrinsic electrical activity of the heart (Linenthal and Zoll, 1962). In addition, the time interval from the pacemaker impulse to initiation of the ventricular response is generally short, and the stimulus artefact is usually fused with the resultant QRS complex. If the pacemaker stimulus is not coincident with the pacemaker-induced depolarization, the phenomenon may be described as pacemaker latency. During the management of 129 symptomatic heart block patients with either temporary transvenous or implanted transvenous and transthoracic pacemakers, four'varieties of incomplete pacemaker capture were observed in five patients. In one of these patients, a significant latency in activation was noted. These observations, which form the substance of this report, bear on certain theories relating to the irregular expression of ventricular parasystolic foci.
23 citations
01 Jan 1969
19 citations
16 citations
16 citations
11 citations
TL;DR: The detection latency data support the thesis that scanning is governed by the reinforcement efficacy of relevant signals, and the results were interpreted in terms of a four-process model of complex monitoring.
10 citations
TL;DR: The latency results indicated that delay interval should not be confounded with postreinforcement interval since both intervals influence latency of responding.
TL;DR: Psychophysiological and latency measures associated with solution of a complex problem were studied and it was found that response decrements did occur in all three measures in solved tasks but did not occur in unsolved tasks.
Abstract: Psychophysiological and latency measures associated with solution of a complex problem were studied. Twenty high-school Ss were given tasks requiring formulation of a rule for solution. Skin potential (SP), vasoconstriction f VC), and response latency (RL) were continuously measured. Comparing early and late measures on solved and unsolved tasks, it was found that: f 1) response decrements did occur in all three measures in solved tasks; (2) they did not occur in unsolved tasks; (3) the difference in decrease between solved and unsolved tasks was significant for SP and RL but not for VC.
TL;DR: In this article, a scheme for defining the cooperative response along the four dimensions of sequential-nonsequential, topography, latency, and duration is presented for defining cooperative responses in four studies.
Abstract: A scheme is presented for defining the cooperative response along the four dimensions of sequential-nonsequential, topography, latency, and duration. The cooperative responses in four studies are defined using the scheme.
TL;DR: The authors investigated the effect of the number of response alternatives on response latency in paired-associate learning and found that the mean error latencies were an increasing function of the response alternatives, while on pre-criterion trials, mean error latency was consistently greater than mean success latencies with four-and eight-response alternatives.
Abstract: An experiment was carried out to investigate the effect of the number of response alternatives on response latency in paired-associate learning. In previous studies no systematic differences have been found between error and success latencies of trials prior to the last error, but these studies have involved only two or three response alternatives. In the present study eight stimuli were paired with either two-, four- or eight-response alternatives.
The mean error latencies were an increasing function of the number of response alternatives, while on pre-criterion trials, mean error latencies were consistently greater than mean success latencies with four- and eight-response alternatives. No systematic differences were found in the two-response condition.
A four-state all-or-none memory model was fitted to both the frequency and latency data, and adequately accounted for the four- and eight-response Conditions, but yielded some discrepant predictions in the two-response condition. These discrepancies were attributed to the use of different recall strategies by the subjects.