Showing papers on "Latency (engineering) published in 1979"
121 citations
TL;DR: Although both ketamine and pentobarbital significantly decreased heart rate and altered the gross EEG, they did not significantly change the latency or amplitude intensity functions of the two evoked-potential components.
Abstract: ¶ Latency and amplitude intensity functions of two short latency ( ( Arch Otolaryngol 105:467-470, 1979)
81 citations
TL;DR: Data obtained from reaction time (RT) measurements as well as from experiments employing masking paradigms suggest that high spatial frequency gratings are perceived with some delay in comparison with low spatial frequency ones, supported by records of human visually evoked response (VER) to sinusoidal gratings.
78 citations
TL;DR: The effects of click repetition rate on the latency of the auditory brain stem responses (BSR) and its possible use as a clinical diagnostic tool of the brain stem disorders were investigated.
Abstract: The effects of click repetition rate on the latency of the auditory brain stem responses (BSR) and its possible use as a clinical diagnostic tool of the brain stem disorders were investigated. When the click rate was increased, the latency of the BSR waves was prolonged. The latency of the later response components increased more than that of the earlier response components. This method was applied to the clinical cases with brain stem disorders. A case with a IVth ventricle epidermoid tumor showed a marked latency prolongation and disappearance of the waves at higher repetition rates. An explanation of the latency shift in the normal subjects and the abnormal responses of the patient to repetition rate is attempted.
69 citations
TL;DR: This paper found that the study position of the probe that had been presented earlier in the list had little or no effect on response latency, whereas the position of probe that was presented later in a list had a large and reliable effect on the response latency.
Abstract: Subjects were asked to report which of two test words had been presented more recently in a list of 4 or 10 words. In each of four experiments, the study position of the probe that had been presented earlier in the list had little or no effect on response latency, whereas the study position of the probe that had been presented later in the list had a large and reliable effect on response latency. In Experiment 4, some test items were lures, and they had no effect on response latency. These results are incompatible with several theories of recency discrimination and strongly suggest parallel self-terminating processing of the probes.
55 citations
TL;DR: Subcollicular, volume-conducted auditory evoked potentials were obtained from the C57BL/6 laboratory mouse and acoustic stress produced differential changes within peripheral and central amplitude and latency measures, and these parameters were also sensitive to the method used to reduce body movement during the recording session.
44 citations
01 Dec 1979
41 citations
TL;DR: The role of the Inimune Response in Preventing the Establishing ofency andintailiing the Virus in a Latent State is studied.
Abstract: Introduction 267 Mechanisni of 1,atcncy 268 Imniunological Control of Virus Spread and Development of Clinical I>ise:~se 268 Role of the Inimune Response in Preventing the Establishlnent of I*;~tency and M;~intailiing the Virus in a Latent State 272
35 citations
TL;DR: This research demonstrates that latency can be measured unobtrusively in telephone interviewing by means of automatic equipment and is found to be a robust measure in that it was not appreciably influenced by the serial position of questions.
Abstract: Response latency, which is the amount of time a respondent deliberates before answering a question, can serve as an indicator of the respondent's certainty. This research demonstrates that latency ...
22 citations
TL;DR: Two experiments are reported in which subjects were required to make rapid aiming movements to targets of various sizes and the probe RTs were correlated with target size and some evidence that the probe was lengthening during the movement and in the region of the target.
Abstract: Two experiments are reported in which subjects were required to make rapid aiming movements to targets of various sizes. Probe reaction time (RT) procedures were used to investigate the preparation of the response to the target. It was proposed that if the precision of movement was planned in advance, this would be reflected by the lengthening of RTs to probes presented during the latency phase of the response. The more precise the movement (to smaller targets) the longer will be the delays to the probes. The results generally supported the prediction, and the probe RTs were correlated with target size. There was also some evidence that the probe was lengthening during the movement and in the region of the target.
19 citations
TL;DR: The authors found that the reproduction of responses has been related to latency at the first presentation of the stimulus, whereas the number of different responses to the same stimulus and associative frequency reflect associative strength in two different ways.
Abstract: Using three samples of French subjects (ns = 101, 49 and 51) in a single-word free-association experiment, the reproduction of responses has been related to latency at the first presentation of the stimulus. If no consideration is given to the hierarchy of responses, a significant variation exists between the latencies of responses which are reproduced and those which are not. This variation is assumed to be related to a strength in acquisition of the response by subjects, whereas the number of different responses to the same stimulus and associative frequency reflect associative strength in two different ways.
Journal Article•
Patent•
13 Jan 1979
TL;DR: In this paper, the authors propose to supervise a processor while making time measur ements corresponding to the next calling at every time when the detection-blocking part of a latency time measurement part becomes idle.
Abstract: PURPOSE:To make it possible to gather a great amount of data in a short time with a relatively simple consitution, by supervising a processor while making time measur ements corresponding to the next calling at every time when the detection-blocking part of a latency time measurement part becomes idle.
TL;DR: The antidromic impulse associated to the ephaptic response can produce a recurrent wave (Fe), which is similar to the 'S' response described by Thorne, but the gamma-loop is not implicated.
Abstract: The antidromic impulse associated to the ephaptic response can produce a recurrent wave (Fe). Its latency, which is longer than that of the F wave, will augment if the site of stimulation is remote fr
Patent•
06 Feb 1979
TL;DR: In this paper, the authors proposed a method to make it possible to feed originals at a high speed with a latency time for read shortened, by feeding the 2nd original through the restarted rotation of a feeding roller when a detector detects the back side of the 1st original having been read out.
Abstract: PURPOSE:To make it possible to feed originals at a high speed with a latency time for read shortened, by feeding the 2nd original through the restarted rotation of a feeding roller when a detector detects the back side of the 1st original having been read out
Journal Article•
Patent•
20 Mar 1979
TL;DR: In this article, the authors propose to shorten a latency time by enabling a reciver applied to a NHKC system to display sequentially kinds of program and page numbers while the signal of the next page of the selectively-displayed program is transmitted.
Abstract: PURPOSE:To shorten a latency time by enabling a reciver applied to a NHKC system to display sequentially kinds of program and page numbers while the signal of the next page of the selectively-displayed program is transmitted.
Patent•
01 Aug 1979
TL;DR: In this paper, the authors propose to shorten a memory access latency by starting access to a control memory for obtaining next-step information nearly at the same time as the execution start of a control step.
Abstract: PURPOSE:To shorten a memory-access latency time by starting access to a control memory for obtaining next-step information nearly at the same time as the execution start of a control step. CONSTITUTION:Decoder 15 is for general control commands of the kind such as arithmetic control commands among pieces of information read out from control memory 12, and decoder 16 for memory actuation commands of the kinds. Namely, general control commands are decided on one machine cycle by being generated with the decoded output of decoder 15 set to control data register CDR13. On the other hand, some of control information relating to main-memory actuation is generated by directly using the output of decoder 16. Consequently, access to memory 12 for obtaining control information in the next step starts at nearly the same time as the execution start of one control step and the information is sent right after being read out from memory 12, so that the memory-access latency time can be shortened as long as that.
Journal Article•
01 Jan 1979
TL;DR: Comparisons drawn between the acoustic reflex latency test and BERA wave V latency, obtained with tone pip stimuli, indicate that stapedial reflex latency is a more efficient method of tumor detection.
Abstract: The parameter of latency of the acoustic stapedial reflex was used to test the hypothesis that a retrocochlear lesion involving the afferent portion of the reflex arc will result in a slowed neural conduction time. Measurements of middle‐ear muscle activity were made by use of an electro‐acoustic impedance bridge modified to permit presentation of tonal stimuli 300 ms in duration with 10‐ms rise/fall time for test frequencies of 1000 and 2000 Hz. Both contralateral and ipsilateral values were obtained for absolute reflex latency and interaural latency differences on four clinical populations which included cochlear lesions due to Meniere's disease and surgically confirmed acoustic tumor. Results reveal a dramatic prolongation of latency in the presence of retrocochlear lesions. Comparisons drawn between the acoustic reflex latency test and BERA wave V latency, obtained with tone pip stimuli, indicate that stapedial reflex latency is a more efficient method of tumor detection. [Work supported by American H...
Patent•
21 Feb 1979
TL;DR: In this article, the authors identify rapidly whether or not one process becomes dead-locked as the result that it turns into a latency state when referring to a locked source, and propose a mechanism to detect dead-locks.
Abstract: PURPOSE:To identify rapidly whether or not one process becomes dead-locked as the result that it turns into a latency state when referring to a locked source.
TL;DR: This article found that response elaboration is a complex process that depends on the number of responses immediately recognized and on the time spent searching for stimuli that were detected but not recognized, and that the time necessitated by verification of an answer was about the same as the time necessary for the verification of the accuracy of a recognized item (about 40-50 msec).
Abstract: In an immediate memory task where cards with six letters were presented tachistoscopically, a decrease in response latency inversely proportional to the number of recognized letters was found. On the other hand, when subjects had to recognize a limited number of letters, latency increased proportionally to the number of responses. These results lead to the conclusion that response elaboration is a complex process that depends on the number of responses immediately recognized and on the time spent searching for stimuli that were detected but not recognized. The time necessitated by the verification of an answer was about the same as the time necessary for the verification of the accuracy of a recognized item (about 40-50 msec).