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 Experiment Videos

Symmetry in haptic and in visual shape perception

S Ballesteros1, S Millar, J M Reales

  • 1Departamento de Psicología Básica II, Ciudad Universitaria S/N, Universidad Nacional de Educaión a Distancia, Madrid, Spain. sballest@cu.uned.es

Perception & Psychophysics
|May 26, 1998
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Can facial proportions provide an objective assessment of prominent Ears? A survey of healthcare professionals.

Journal of plastic, reconstructive & aesthetic surgery : JPRAS·2019
Same author

Primary cutaneous osteosarcoma: a lesion arising de novo in the posterior triangle of the neck.

Pathology·2018
Same author

Really does temperature reduction and norepinephrine have similar effects on the energy metabolism in rat brown adipose tissue?

Archives of physiology and biochemistry·2017
Same author

Metabolic differences between white and brown fat from fasting rabbits at physiological temperature.

Journal of molecular endocrinology·2015
Same author

Dynamic noise, chaos and parameter estimation in population biology.

Interface focus·2013
Same author

Factors involved in rosuvastatin induction of insulin sensitization in rats fed a high fat diet.

Nutrition, metabolism, and cardiovascular diseases : NMCD·2013

Bilateral symmetry aids visual processing. In touch, symmetry effects emerge with sufficient spatial reference information, particularly for open shapes explored with two fingers.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Haptic Perception

Background:

  • Bilateral symmetry is a fundamental property influencing visual perception.
  • Its role in haptic perception, particularly the conditions under which it can be perceived, remains less understood.
  • This study investigates symmetry as an incidental encoding property in both vision and touch.

Purpose of the Study:

  • To test if bilateral symmetry, an incidental property in vision, can also be elicited in touch.
  • To determine the conditions necessary for eliciting symmetry effects in haptic exploration.
  • To investigate the influence of spatial reference information on tactile symmetry perception.

Main Methods:

  • Four experiments were conducted using visual and tactile stimuli.

Related Experiment Videos

  • Tasks involved judgments of stimulus closure and exploration of symmetric shapes.
  • Tactile exploration utilized one-finger and two-finger methods, with and without prior alignment to the body midaxis.

    • Main Results:

    • Symmetry facilitated visual processing, irrespective of the task (Experiment 1).
    • One-finger tactile exploration showed no symmetry effects (Experiments 2 & 3).
    • Two-finger exploration with body-centered spatial reference revealed facilitating effects for open symmetric shapes, but not closed ones (Experiments 3 & 4).

    Conclusions:

    • Bilateral symmetry is an incidental encoding property in vision.
    • Haptic perception of symmetry is contingent on adequate spatial reference information.
    • Two-handed exploration and body-centered alignment are crucial for eliciting tactile symmetry effects, especially for open shapes.