Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
Parallel Processing01:20

Parallel Processing

The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
Space-Time Curvature and the General Theory of Relativity01:17

Space-Time Curvature and the General Theory of Relativity

In 1905, Albert Einstein published his special theory of relativity. According to this theory, no matter in the universe can attain a speed greater than the speed of light in a vacuum, which thus serves as the speed limit of the universe.
This has been verified in many experiments. However, space and time are no longer absolute. Two observers moving relative to one another do not agree on the length of objects or the passage of time. The mechanics of objects based on Newton's laws of motion,...
Properties of Laplace Transform-II01:16

Properties of Laplace Transform-II

Time differentiation, convolution, integration, and periodicity are fundamental concepts in analyzing functions and signals over time. Each concept provides a unique perspective on how functions evolve, interact, and repeat, offering essential tools for various scientific and engineering applications.
Time differentiation involves analyzing the rate of change of a function over time. Mathematically, it is the derivative of a function with respect to time. This concept can be likened to tracking...
Properties of DTFT I01:24

Properties of DTFT I

In signal processing, Discrete-Time Fourier Transforms (DTFTs) play a critical role in analyzing discrete-time signals in the frequency domain. Various properties of the DTFTs such as linearity, time-shifting, frequency-shifting, time reversal, conjugation, and time scaling help understand and manipulate these signals for different applications.
The linearity property of DTFTs is fundamental. If two discrete-time signals are multiplied by constants a and b respectively, and then combined to...
Time and frequency -Domain Interpretation of Phase-lag Control01:21

Time and frequency -Domain Interpretation of Phase-lag Control

Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any finite,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Adult lifespan normative data (18-92 years) for executive function tests; the Stroop colour word test, COWAT and Hayling sentence completion test.

Journal of neuropsychology·2025
Same author

A right frontal network for analogical and deductive reasoning.

Brain : a journal of neurology·2025
Same author

Brain health services for the secondary prevention of cognitive impairment and dementia: Opportunities, challenges, and the business case for existing and future facilities.

The journal of prevention of Alzheimer's disease·2025
Same author

Cognitive control & the anterior cingulate cortex: Necessity & coherence.

Cortex; a journal devoted to the study of the nervous system and behavior·2024
Same author

The minimal computational substrate of fluid intelligence.

Cortex; a journal devoted to the study of the nervous system and behavior·2024
Same author

Cognitive reserve modulates mental health in adulthood.

Aging clinical and experimental research·2024
Same journal

Prevalence and modulation of rat off-track head scanning on linear tracks: possible implications for representational and dynamic properties of hippocampal place cells.

Neuropsychologia·2026
Same journal

Identifying networks within an fMRI multivariate searchlight analysis.

Neuropsychologia·2026
Same journal

Modulating sentence comprehension in people with aphasia through anodal tDCS: A double-blind randomized cross-over study.

Neuropsychologia·2026
Same journal

Deficient processing of regularity violations during visuospatial neglect: a visual mismatch negativity study.

Neuropsychologia·2026
Same journal

Seeing is believing: mental imagery amplifies moral, emotional, and motivational responding to mentally constructed hypothetical events.

Neuropsychologia·2026
Same journal

From Past Recall to Future Projection: What Does Verb Tense Production Reveal About Mental Time Travel in Alzheimer's disease?

Neuropsychologia·2026
See all related articles

Related Experiment Video

Updated: Jun 22, 2026

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
09:13

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Published on: April 22, 2015

Dissociations and interactions between time, numerosity and space processing.

Marinella Cappelletti1, Elliot D Freeman, Lisa Cipolotti

  • 1Institute of Cognitive Neuroscience, University College London, 17 Queen Square, London WC1N 3AR, UK. m.cappelletti@ucl.ac.uk

Neuropsychologia
|June 9, 2009
PubMed
Summary
This summary is machine-generated.

Magnitude processing involves separate brain mechanisms for time, number, and space, though some overlap exists. Patient CB showed selective time deficits, indicating distinct neural pathways for temporal estimation.

More Related Videos

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
13:00

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes
09:27

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes

Published on: January 19, 2024

Related Experiment Videos

Last Updated: Jun 22, 2026

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
09:13

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Published on: April 22, 2015

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
13:00

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes
09:27

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes

Published on: January 19, 2024

Area of Science:

  • Cognitive Neuroscience
  • Neuropsychology
  • Psychophysics

Background:

  • Understanding how the brain processes abstract magnitudes like time, number, and space is crucial for cognitive science.
  • Previous research suggests potential shared or distinct neural mechanisms underlying these magnitude dimensions.

Purpose of the Study:

  • To investigate whether time, numerosity, and space processing rely on a common magnitude system or dimension-specific systems.
  • To examine the effects of a right hemisphere lesion on these magnitude processing abilities.

Main Methods:

  • A patient (CB) with a right hemisphere lesion and healthy control subjects participated.
  • Five experimental tasks assessed independent and joint processing of time, numerosity, and space.
  • Performance was evaluated based on estimation accuracy and discrimination abilities.

Main Results:

  • Patient CB exhibited significant impairments in time estimation and discrimination, with underestimations.
  • Number and space processing abilities were intact in patient CB.
  • A unidirectional interaction was observed: small numbers were associated with shorter durations, and large numbers with longer durations, in both patient and controls.

Conclusions:

  • Time processing can be selectively impaired, suggesting partially independent mechanisms from number and space processing.
  • Interactions between numbers and time, and numbers and space, indicate some degree of overlap in their neural underpinnings.
  • These findings support a partly shared mechanism for magnitude processing across time, number, and space.