Platform

  • Search
  • Seminars
  • Conferences
  • Jobs

Resources

  • Submit Content
  • About Us

© 2025 World Wide

Open knowledge for all • Started with World Wide Neuro • A 501(c)(3) Non-Profit Organization

Analytics consent required

World Wide relies on analytics signals to operate securely and keep research services available. Accept to continue, or leave the site.

Review the Privacy Policy for details about analytics processing.

World Wide
SeminarsConferencesWorkshopsCoursesJobsMapsFeedLibrary
← Back

Exploring Fine Detail Interplay

Back to SeminarsBack
Seminar✓ Recording AvailableNeuroscience

Exploring fine detail: The interplay of attention, oculomotor behavior and visual perception in the fovea

Martina Poletti

PhD

University of Rochester

Schedule
Tuesday, December 8, 2020

Showing your local timezone

Schedule

Tuesday, December 8, 2020

4:00 PM Europe/Berlin

Watch recording
Host: BCCN Berlin lectures series

Seminar location

Seminar location

Not provided

No geocoded details are available for this content yet.

Watch the seminar

Recording provided by the organiser.

Event Information

Format

Recorded Seminar

Recording

Available

Host

BCCN Berlin lectures series

Seminar location

Seminar location

Not provided

No geocoded details are available for this content yet.

World Wide map

Abstract

Outside the foveola, visual acuity and other visual functions gradually deteriorate with increasing eccentricity. Humans compensate for these limitations by relying on a tight link between perception and action; rapid gaze shifts (saccades) occur 2-3 times every second, separating brief “fixation” intervals in which visual information is acquired and processed. During fixation, however, the eye is not immobile. Small eye movements incessantly shift the image on the retina even when the attended stimulus is already foveated, suggesting a much deeper coupling between visual functions and oculomotor activity. Thanks to a combination of techniques allowing for high-resolution recordings of eye position, retinal stabilization, and accurate gaze localization, we examined how attention and eye movements are controlled at this scale. We have shown that during fixation, visual exploration of fine spatial detail unfolds following visuomotor strategies similar to those occurring at a larger scale. This behavior compensates for non-homogenous visual capabilities within the foveola and is finely controlled by attention, which facilitates processing at selected foveal locations. Ultimately, the limits of high acuity vision are greatly influenced by the spatiotemporal modulations introduced by fixational eye movements. These findings reveal that, contrary to common intuition, placing a stimulus within the foveola is necessary but not sufficient for high visual acuity; fine spatial vision is the outcome of an orchestrated synergy of motor, cognitive, and attentional factors.

Topics

attentioneye movementsfixationfoveahigh acuity visionoculomotor behavioursaccadesvisual acuityvisual perceptionvisuomotor strategies

About the Speaker

Martina Poletti

PhD

University of Rochester

Contact & Resources

Personal Website

www.urmc.rochester.edu/labs/active-perception-lab.aspx

Related Seminars

Seminar64% match - Relevant

Continuous guidance of human goal-directed movements

neuro

Dec 9, 2024
VU University Amsterdam
Seminar64% match - Relevant

Rett syndrome, MECP2 and therapeutic strategies

neuro

The development of the iPS cell technology has revolutionized our ability to study development and diseases in defined in vitro cell culture systems. The talk will focus on Rett Syndrome and discuss t

Dec 10, 2024
Whitehead Institute for Biomedical Research and Department of Biology, MIT, Cambridge, USA
Seminar64% match - Relevant

Genetic and epigenetic underpinnings of neurodegenerative disorders

neuro

Pluripotent cells, including embryonic stem (ES) and induced pluripotent stem (iPS) cells, are used to investigate the genetic and epigenetic underpinnings of human diseases such as Parkinson’s, Alzhe

Dec 10, 2024
MIT Department of Biology
World Wide calendar

World Wide highlights

December 2025 • Syncing the latest schedule.

View full calendar
Awaiting featured picks
Month at a glance

Upcoming highlights