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

The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
Aging01:26

Aging

Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are not...
Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...

You might also read

Related Articles

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

Sort by
Same author

The visual perception of outdoor angular spatial relationships.

Journal of vision·2026
Same author

The visual perception of relative mass from object collisions.

Journal of vision·2026
Same author

The identification of materials from patterns of fluid flow.

Journal of vision·2025
Same author

Visual sensitivity to irregularities in periodic tiling patterns.

Scientific reports·2025
Same author

Appearance and disappearance, an unrecognized form of grouping and form perception from common fate.

Scientific reports·2025
Same author

Visual outdoor space perception.

Scientific reports·2025

Related Experiment Video

Updated: Jul 2, 2026

Imaging the Aging Cochlea with Light-Sheet Fluorescence Microscopy
05:27

Imaging the Aging Cochlea with Light-Sheet Fluorescence Microscopy

Published on: September 28, 2022

Stereopsis and aging.

J Farley Norman1, Hideko F Norman, Amy E Craft

  • 1Department of Psychology, 1906 College Heights Boulevard #21030, Western Kentucky University, Bowling Green, KY 42101-1030, USA. Farley.Norman@wku.edu

Vision Research
|September 6, 2008
PubMed
Summary
This summary is machine-generated.

Older adults maintain comparable stereopsis (3D vision) to younger adults, showing similar depth and shape discrimination. However, age-related differences emerge when stereoscopic vision is significantly challenged.

More Related Videos

SA-β-Galactosidase-Based Screening Assay for the Identification of Senotherapeutic Drugs
07:39

SA-β-Galactosidase-Based Screening Assay for the Identification of Senotherapeutic Drugs

Published on: June 28, 2019

Related Experiment Videos

Last Updated: Jul 2, 2026

Imaging the Aging Cochlea with Light-Sheet Fluorescence Microscopy
05:27

Imaging the Aging Cochlea with Light-Sheet Fluorescence Microscopy

Published on: September 28, 2022

SA-β-Galactosidase-Based Screening Assay for the Identification of Senotherapeutic Drugs
07:39

SA-β-Galactosidase-Based Screening Assay for the Identification of Senotherapeutic Drugs

Published on: June 28, 2019

Area of Science:

  • Vision Science
  • Gerontology
  • Perception

Background:

  • Stereopsis, or stereoscopic vision, is crucial for depth perception.
  • Understanding how aging affects stereoscopic capabilities is important for visual health in older adults.

Purpose of the Study:

  • To investigate the impact of aging on the functionality of stereopsis.
  • To determine if older individuals' stereoscopic vision is comparable to younger individuals' under various challenging conditions.

Main Methods:

  • Three experiments utilized high and ambiguous binocular disparities to challenge stereoscopic vision.
  • Participants aged 18-83 discriminated ordinal depth and stereoscopic shape.
  • Binocular matching difficulty was manipulated by varying line element orientations.

Main Results:

  • Older and younger observers showed comparable abilities in depth and surface shape discrimination.
  • Age-related differences in stereopsis became apparent under challenging conditions.
  • The aging stereoscopic system's ability to resolve ambiguous disparities was assessed.

Conclusions:

  • Stereoscopic vision remains largely functional in older adults.
  • Significant challenges to the visual system highlight age-related differences in stereopsis.
  • Aging does not fundamentally impair stereoscopic processing but can reduce resilience to complex visual tasks.