Reaction Time Tracking
Reaction Time Tracking - Related Videos
06:58
Real-time Tracking of DNA Fragment Separation by Smartphone
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Cited by 2 •
2017
Traditional slab gel electrophoresis (SGE) experiments require a complicated apparatus and high chemical consumption. This work presents a protocol that describes a low-cost method to separate DNA fragments within a short timeframe.
09:43
Measuring Reaction Time and Donders' Method of Subtraction
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University The ambition of experimental psychology is to characterize the mental events that support the human ability to solve problems, perceive the world, and turn thoughts into words and sentences. But people cannot see or feel those mental events; they cannot be weighed, combined in test tubes, or grown in a dish. Wanting to study mental life, nonetheless, Franciscus Donders, a Dutch ophthalmologist in the early 1800s, came up with a...
10:16
A Protocol for Real-time 3D Single Particle Tracking
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Cited by 13 •
2018
This protocol details the construction and operation of a real-time 3D single particle tracking microscope capable of tracking nanoscale fluorescent probes at high diffusive speeds and low photon count rates.
12:03
A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
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Cited by 7 •
2019
A protocol to assess the time evolution of the neural entrainment to external repetitive stimuli is presented. Steady-state recordings of the same experimental condition are acquired and averaged in the time-domain. The steady-state dynamics are analyzed by plotting the response amplitude as a function of time.
06:19
Eye Tracking in Cognitive Experiments
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2023
Eye tracking as the name suggests involves tracking of eye-movements. It is a non-invasive, sensitive tool that quantifies and measures eye-movements to describe an individuals' cognitive state. An eye-movement between two fixation points is called a saccade, which is one of the fastest motor movements in our body. By observing the profiles of these eye movements, scientists can better understand neural deficits in patients with cognitive impairments. In this video, we will first look at an...
FAQs
These factors can change response speed independently of the neural process under study. Limited attention may reduce performance, practice may improve familiarity with the task, and choosing among multiple responses can add decision demands. Researchers therefore control or compare these conditions so that differences in recorded timing can be interpreted more reliably.
Changes in timing can provide behavioral evidence about sensory processing, motor preparation, and cognitive load. For example, researchers may compare performance across conditions to determine whether a manipulation alters the handling of incoming information, readiness to respond, or the mental demands required before response initiation. The measurement does not isolate these functions automatically, so experimental comparisons are important.
Different cue types allow researchers to examine performance across sensory modalities rather than relying on a single form of input. Comparing visual, auditory, or tactile conditions can reveal whether an experimental effect is associated with a particular sensory pathway or appears more broadly. The selected modality should match the research question and remain consistent across comparable conditions.
A typical workflow presents a defined sensory cue through software, records when the participant initiates a response, and calculates the interval between stimulus onset and response initiation. Researchers then compare timing across controlled conditions, while accounting for factors such as attention, practice, and response choice. Consistent presentation and response recording are essential for meaningful comparisons.
A change in timing can indicate altered information processing or neural performance, but its meaning depends on the condition being compared. Researchers may use the pattern of results to study sensory processing, motor preparation, or cognitive load. Interpreting the outcome requires attention to the task demands and the factors controlled during data collection.
The method supports studies of perception and decision-making as well as changes associated with aging, neurological disorders, drugs, or brain injury. It can also show how performance differs across experimental conditions, providing a behavioral measure for research on neural function. Its value lies in connecting observable response timing with broader questions about information processing and performance.