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

Visual Agnosia01:12

Visual Agnosia

1.5K
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
1.5K
Shape and Texture of Coarse Aggregate01:25

Shape and Texture of Coarse Aggregate

742
Aggregate shape is classified based on the relative sharpness or roundness of the edges and corners. This classification includes categories like rounded, angular, elongated, and flaky, each with specific characteristics. Rounded aggregates, fully shaped by attrition, are typical of river or seashore gravel, while angular aggregates, such as crushed rock, have well-defined edges. Aggregates that are elongated and flaky are less desirable, as they can reduce the workability and strength of...
742
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

2.5K
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
2.5K
Perceptual Constancy01:12

Perceptual Constancy

1.7K
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
1.7K
Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

805
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
805
Modeling and Similitude01:12

Modeling and Similitude

699
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
699

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
Same journal

Predictive models and parameter analysis for multiple tactile perceptions in skin-wet fabrics interface.

Perception·2026
Same journal

High-resolution kitsch by AI: Why society needs art, not more AI content.

Perception·2026
Same journal

Benchmarking spatial discrimination thresholds of two-frame motion defined forms compared to luminance and stereoscopic defined forms.

Perception·2026
Same journal

The effect of face masks on the perception of trustworthiness and competence in individuals with autistic traits.

Perception·2026
Same journal

The importance of external features for categorizing ethnicity: can Koreans identify Korean, Japanese, and Chinese faces?

Perception·2026
Same journal

Interoception, alexithymia, and motor congruency: Psychological drivers of body ownership in virtual reality.

Perception·2026
See all related articles

Related Experiment Video

Updated: Mar 8, 2026

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing
06:25

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing

Published on: February 23, 2024

1.2K

Aging and Haptic-Visual Solid Shape Matching.

J Farley Norman1, Olivia C Adkins1, Catherine J Dowell1

  • 1Department of Psychological Sciences, Ogden College of Science and Engineering, Western Kentucky University, Bowling Green, KY, USA.

Perception
|January 24, 2017
PubMed
Summary
This summary is machine-generated.

Younger and older adults explored bell pepper shapes haptically. Performance was unaffected by finger count, but younger adults significantly outperformed older adults in shape matching.

Keywords:
3D perceptionhaptics or touchlifespan or agingshape

More Related Videos

Tactile Semiautomatic Passive-Finger Angle Stimulator TSPAS
04:40

Tactile Semiautomatic Passive-Finger Angle Stimulator TSPAS

Published on: July 30, 2020

3.3K
Creating Objects and Object Categories for Studying Perception and Perceptual Learning
14:38

Creating Objects and Object Categories for Studying Perception and Perceptual Learning

Published on: November 2, 2012

12.3K

Related Experiment Videos

Last Updated: Mar 8, 2026

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing
06:25

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing

Published on: February 23, 2024

1.2K
Tactile Semiautomatic Passive-Finger Angle Stimulator TSPAS
04:40

Tactile Semiautomatic Passive-Finger Angle Stimulator TSPAS

Published on: July 30, 2020

3.3K
Creating Objects and Object Categories for Studying Perception and Perceptual Learning
14:38

Creating Objects and Object Categories for Studying Perception and Perceptual Learning

Published on: November 2, 2012

12.3K

Area of Science:

  • Psychology
  • Neuroscience
  • Human Factors

Background:

  • Haptic perception is crucial for object recognition.
  • Previous studies on man-made objects suggest finger count influences haptic exploration.
  • Natural object shapes present unique challenges for tactile exploration.

Purpose of the Study:

  • To investigate the effect of finger count on haptic shape perception of natural objects.
  • To compare haptic shape recognition performance between younger and older adults.
  • To determine if single-finger exploration is as effective as multi-finger exploration for natural shapes.

Main Methods:

  • 36 participants (younger and older adults) haptically explored plastic bell pepper models.
  • Participants identified matching shapes from a visual array.
  • Exploration was performed using one, three, or five fingers.

Main Results:

  • Haptic shape matching performance was not significantly affected by the number of fingers used.
  • Younger adults demonstrated significantly better shape matching performance (48.6% higher) than older adults.
  • Single-finger exploration was as effective as five-finger exploration for natural object shapes.

Conclusions:

  • Finger count does not significantly impact haptic shape perception of natural objects like bell peppers.
  • Age is a significant factor, with younger adults showing superior performance in haptic shape recognition.
  • Effective haptic exploration of natural shapes may not require extensive finger usage.