• Task
  • We develop a general theory of reaction time (RT) distributions in psychological experiments, deriving from the distribution of the quotient of two normal random variables, that of the task difficulty (top-down information), and that of the external evidence that becomes available to solve it (bottom-up information). (cogprints.org)
  • The difficulty of the task is controlled by the length of time the aperture is illuminated: a shorter illumination time requires the animal to pay greater attention, and thus is more difficult (as shown by decreased accuracy). (wikipedia.org)
  • Stop-signal reaction-time task Animal testing on rodents Robbins, TW (October 2002). (wikipedia.org)
  • occur
  • A vaccine reaction is defined so that all bad reactions are said to occur very soon after the shot is given. (whale.to)
  • It is unusually on the order of 200 ms. The processes that occur during this brief time enable the brain to perceive the surrounding environment, identify an object of interest, decide an action in response to the object, and issue a motor command to execute the action. (wikipedia.org)
  • The time it takes for a bus telegram to be finalised or for some other reaction from the head module to occur, once a signal has changed at an input. (pilz.com)
  • efficiency
  • How does the length of time spent awake affect the efficiency of our central nervous system? (education.com)
  • Overall, the Tunguska-M1 has a combat efficiency 1.3-1.5 times greater than the Tunguska-M. The Tunguska family was until recently a unique and highly competitive weapons system, though in 2007 the Pantsir gun and missile system entered production at KBP-a descendant of the Tunguska, the Pantsir system offers even greater performance than its predecessor. (wikipedia.org)
  • real-time
  • Including light stimulus, sound stimulus and compete against all the world in real-time. (funny-games.biz)
  • Real-time PCR can be used quantitatively (quantitative real-time PCR), and semi-quantitatively, i.e. above/below a certain amount of DNA molecules (semi quantitative real-time PCR). (wikipedia.org)
  • Two common methods for the detection of PCR products in real-time PCR are: (1) non-specific fluorescent dyes that intercalate with any double-stranded DNA, and (2) sequence-specific DNA probes consisting of oligonucleotides that are labelled with a fluorescent reporter which permits detection only after hybridization of the probe with its complementary sequence. (wikipedia.org)
  • This measurement is made after each amplification cycle, and this is the reason why this method is called real time PCR (that is, immediate or simultaneous PCR). (wikipedia.org)
  • Even if the technology to map out every neuron in the brain in real-time were available, and it were known when each neuron was firing, it would still be impossible to know how a particular firing of neurons translates into the observed behavior. (wikipedia.org)
  • study
  • Aging causes a loss of brain connections and slows reaction time, reports a University of Michigan study. (reference.com)
  • Reaction times between a 20- to 25-year-old age group and a 45- to 55-year-old age group of physically fit men show only a negligible difference, says a study from the University of Texas Department of Health and Physical Education. (reference.com)
  • Because the 5CSRTT has separate measures of attention, impulsivity, and reaction times, it has proven useful in the pre-clinical study of the treatment of diagnoses such as attention-deficit/hyperactivity disorder, and is also a precursor to modern rodent models of gambling and decision making. (wikipedia.org)
  • long
  • Because the vaccine obviously acts in the body for a long period of time after it is given. (whale.to)
  • A thriving black market in pep pills among long-haul truck drivers in the 1950s and 1960s, linked to long drive times and intense competitive pressures within the industry, contributed to federal efforts by the late 1960s to curtail non-medical use of the substance. (wikipedia.org)
  • Trial
  • Did your reaction times vary a lot or were they pretty much the same from trial to trial? (pbskids.org)
  • Between every trial, there is also a short interval wherein the animal must withhold all responses, and any responding during this interval is met with a brief time-out and recorded as a failure of inhibitory control. (wikipedia.org)
  • Start
  • Speaking in the top three press conference, Sebastian Vettel is informed of Valtteri Bottas' reaction time at the start of the GP, but disbelieves what he is told. (skysports.com)
  • response
  • When a human subject follows instructions to make a specific response as soon as he can after the presentation of a specific signal, the latency of the response is called reaction time ( RT ). (encyclopedia.com)
  • In psychology, reaction time (RT) is the time that elapses between a person being presented with a stimulus and the person initiating a motor response to the stimulus. (wikipedia.org)
  • Reflexes in response to stimuli are our quickest reactions. (education.com)
  • fast
  • As a result, reaction time (RTs) to these cues becomes increasingly fast as subjects learn and utilize these transition probabilities. (wikipedia.org)
  • generally
  • At normal doses, caffeine has variable effects on learning and memory, but it generally improves reaction time, wakefulness, concentration, and motor coordination. (wikipedia.org)
  • known
  • The Madison House is a settlement for immigrants that is well known for encouraging education in those who spend time there. (wikipedia.org)
  • people
  • If it was happening often I'd say you're right in thinking that it was due to people anticipating when it would be dropped rather than a genuine reaction. (cricketweb.net)
  • conditions
  • None of the components of the serotonin synthesis reaction are saturated under normal physiological conditions, allowing for the increased production of the neurotransmitter. (wikipedia.org)