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

Visual lateralization and monocular sleep in the domestic chick.

G G Mascetti1, M Rugger, G Vallortigara

  • 1Dipartimento di Psicologia Generale, Università di Padova, Padua, Italy. mascetti@psico.unipd.it

Brain Research. Cognitive Brain Research
|March 17, 1999
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

Visually-naïve chicks prefer agents that move as if constrained by a bilateral body-plan.

Cognition·2018
Same author

Spontaneous preference for visual cues of animacy in naïve domestic chicks: The case of speed changes.

Cognition·2016
Same author

Roots of a social brain: developmental models of emerging animacy-detection mechanisms.

Neuroscience and biobehavioral reviews·2014
Same author

Numerical discrimination by frogs (Bombina orientalis).

Animal cognition·2014
Same author

Position learning in chicks.

Behavioural processes·2014
Same author

The development of responses to novel-coloured objects in male and female domestic chicks.

Behavioural processes·2014
Same journal

Robotic movement elicits automatic imitation.

Brain research. Cognitive brain research·2005
Same journal

On the neural basis of focused and divided attention.

Brain research. Cognitive brain research·2005
Same journal

Task difficulty in a simultaneous face matching task modulates activity in face fusiform area.

Brain research. Cognitive brain research·2005
Same journal

The role of the left Brodmann's areas 44 and 45 in reading words and pseudowords.

Brain research. Cognitive brain research·2005
Same journal

Event-related potentials to violations of inflectional verb morphology in English.

Brain research. Cognitive brain research·2005
Same journal

Individual differences in brain activity during visuo-spatial processing assessed by slow cortical potentials and LORETA.

Brain research. Cognitive brain research·2005
See all related articles

Young chicks show changes in eye closure during sleep, with left eye preference developing over time. Novelty or removal of imprinted objects triggers a shift to right eye closure, possibly indicating right hemisphere processing.

Area of Science:

  • Ethology
  • Neuroscience
  • Developmental Biology

Background:

  • Behavioural sleep patterns are crucial for development and learning in altricial birds.
  • Imprinting, a critical developmental process, may influence sleep architecture and hemispheric lateralization.
  • Understanding sleep lateralization in young birds provides insights into brain development and sensory processing.

Purpose of the Study:

  • To investigate the ontogeny of behavioural sleep, specifically monocular and binocular sleep, in young female chicks.
  • To examine the influence of imprinting object rearing versus social isolation on sleep patterns.
  • To explore the relationship between imprinting-related events and hemispheric sleep lateralization.

Main Methods:

  • Observation of behavioural sleep in female chicks during the first two weeks of life.

Related Experiment Videos

  • Comparison of sleep patterns between chicks reared with an imprinting object and those in social isolation.
  • Analysis of monocular (uniocular) and binocular sleep frequency and eye closure laterality.
  • Introduction of novelty (object color change or removal) on day 8 to assess behavioral responses.

    • Main Results:

    • Both monocular and binocular sleep changed with age; monocular sleep increased while binocular sleep decreased.
    • Chicks reared with an imprinting object showed a bias towards left eye closure during the second week.
    • Sudden changes to the imprinting object (color change or removal) induced a significant shift towards right eye closure during monocular sleep.

    Conclusions:

    • Sleep patterns, including eye closure lateralization, develop during early life and are influenced by rearing conditions and imprinting.
    • The shift to right eye closure in response to novelty suggests a role for the right hemisphere in processing unexpected environmental changes.
    • Behavioural sleep lateralization in chicks may reflect underlying hemispheric specialization for memory consolidation and novelty detection.