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

Temporal summation in dark-adapted 10-week old infants.

A B Fulton1, R M Hansen, Y L Yeh

  • 1Department of Opthalmology, Children's Hospital, Boston, MA 02115.

Vision Research
|January 1, 1991
PubMed
Summary

Infant retinas show immature rod function compared to adults, with differences in how their vision responds to light duration. This suggests developmental delays in visual processing for infants.

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

Phase II randomized trial of carboplatin, paclitaxel, bevacizumab with or without cixutumumab (IMC-A12) in patients with advanced non-squamous, non-small-cell lung cancer: a trial of the ECOG-ACRIN Cancer Research Group (E3508).

Annals of oncology : official journal of the European Society for Medical Oncology·2017
Same author

Dietary overlap of grasshoppers on sandhill rangeland in northeastern Colorado.

Oecologia·2017
Same author

Incidence of traumatic spinal cord injury in Denmark, 1990-2012: a hospital-based study.

Spinal cord·2014
Same author

Capecitabine and oxaliplatin in combination as first- or second-line therapy for metastatic breast cancer: a Wisconsin Oncology Network trial.

Cancer chemotherapy and pharmacology·2012
Same author

Estimating the glomerular filtration rate using serum cystatin C levels in patients with spinal cord injuries.

Spinal cord·2012
Same author

Effect of carotenoid supplementation on plasma carotenoids, inflammation and visual development in preterm infants.

Journal of perinatology : official journal of the California Perinatal Association·2011

Area of Science:

  • Visual neuroscience
  • Developmental ophthalmology

Background:

  • The visual system's development in infants is crucial for understanding visual processing.
  • Rod-mediated vision, responsible for low-light conditions, undergoes significant maturation after birth.

Purpose of the Study:

  • To investigate the effects of stimulus duration on visual responses in dark-adapted infants and adults.
  • To compare the electroretinogram (ERG) b-wave and psychophysical temporal summation functions between infant and adult subjects.

Main Methods:

  • Electrophysiological recordings of the ERG b-wave.
  • Psychophysical testing of temporal summation.
  • Comparative analysis between 10-week-old infants and adult controls.

Main Results:

Related Experiment Videos

  • Both infant and adult b-wave sensitivities were influenced by stimulus duration, exhibiting summation for brief stimuli.
  • Critical durations for b-wave summation were estimated between 88-155 msec for infants and 136-151 msec for adults.
  • Significant differences were observed in psychophysical temporal summation functions, with infants showing a linear response across durations, unlike adults.

Conclusions:

  • Infant rod-mediated visual function demonstrates immaturities compared to adults.
  • ERG and psychophysical measures indicate delayed development in the infant visual system's response to light stimuli duration.