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

Lateralization01:28

Lateralization

1.1K
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
1.1K
Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

4.0K
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
4.0K
Cerebral Hemispheres01:05

Cerebral Hemispheres

2.7K
The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
2.7K
Language and Cognition01:27

Language and Cognition

891
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
891

You might also read

Related Articles

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

Sort by
Same author

MEG state dynamics of sentence generation: evidence for a compensatory segmentation mechanism in healthy aging.

Frontiers in computational neuroscience·2026
Same author

Anticoagulation and Outcomes After Traumatic Cerebral Venous Sinus Thrombosis: A Retrospective Cohort Study.

Journal of neurosurgical anesthesiology·2026
Same author

Structure-function dynamics in healthy cognitive aging: a graph signal processing approach.

Brain structure & function·2026
Same author

[Summary of the 34th National Conference of the National College of Hospital Biochemistry].

Annales de biologie clinique·2026
Same author

School participation in autistic girls and boys: The role of social-communication abilities and extrinsic barriers.

Autism : the international journal of research and practice·2026
Same author

Follow-up imaging after hospital discharge for acute intracerebral hemorrhage in European academic hospitals: a decision-making analysis.

Neuroradiology·2026

Related Experiment Video

Updated: Mar 2, 2026

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice
07:03

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Published on: July 31, 2019

7.3K

Aging Modulates the Hemispheric Specialization during Word Production.

Elena Hoyau1, Naila Boudiaf1, Emilie Cousin1,2

  • 1CNRS LPNC UMR 5105, Laboratoire de Psychologie et Neurocognition, Université Grenoble AlpesGrenoble, France.

Frontiers in Aging Neuroscience
|May 25, 2017
PubMed
Summary

Older adults use brain reorganization to maintain word retrieval accuracy, recruiting posterior semantic regions and bilateral frontal areas. This compensatory mechanism helps offset age-related slowing in lexical production.

Keywords:
HAROLDLAPAagingfMRIhemispheric specializationobject naming

More Related Videos

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
05:38

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

2.9K
Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
13:12

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping

Published on: August 12, 2019

46.6K

Related Experiment Videos

Last Updated: Mar 2, 2026

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice
07:03

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Published on: July 31, 2019

7.3K
Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
05:38

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

2.9K
Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
13:12

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping

Published on: August 12, 2019

46.6K

Area of Science:

  • Neuroscience
  • Cognitive Aging
  • Neuroimaging

Background:

  • Older adults maintain accuracy in word retrieval but show slower response times compared to younger adults.
  • Compensatory mechanisms, including semantic and executive strategies, are employed by older adults to preserve lexical production performance.
  • Brain network reorganization, at both inter- and intra-hemispheric levels, is hypothesized to underlie these compensatory strategies.

Purpose of the Study:

  • To investigate patterns of cerebral reorganization in lexical production networks in healthy aging adults.
  • To examine the relationship between hemispheric reorganization (HR) and age-related changes in naming latencies.
  • To identify specific compensatory mechanisms reflected in brain activation patterns during object naming.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was used to study brain activity during an object naming task.
  • Twenty-seven healthy participants aged 30 to 85 years were included in the study.
  • Analysis focused on identifying task-related patterns of cerebral reorganization and their correlation with performance.

Main Results:

  • A 'left anterior-posterior aging' (LAPA) effect was observed: older adults showed supplementary activation in left posterior (temporo-parietal) regions, suggesting recruitment of posterior semantic areas.
  • Asymmetric activation along the left fronto-temporal axis was noted in older adults.
  • Bilateral recruitment of frontal regions was associated with maintaining response times, particularly in faster older performers, indicating a compensatory mechanism.

Conclusions:

  • Aging is associated with multiple, co-existing compensation and reorganization mechanisms in lexical production.
  • Older adults utilize distinct patterns of brain reorganization, including semantic and executive strategies, to maintain cognitive function.
  • These findings highlight the brain's adaptability in aging, demonstrating how neural networks reorganize to support cognitive tasks like word retrieval.