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Related Experiment Video

Updated: Jun 26, 2026

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

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Border ownership selectivity in human early visual cortex and its modulation by attention.

Fang Fang¹, Huseyin Boyaci, Daniel Kersten

¹Department of Psychology, Key Laboratory of Machine Perception, Ministry of Education, Peking University, Beijing, China. ffang@pku.edu.cn

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience

|January 16, 2009

Summary

Researchers investigated how the brain processes borders between objects in natural images. They found that the V2 area of the visual cortex is crucial for determining border ownership, a process influenced by attention.

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Last Updated: Jun 26, 2026

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Area of Science:

Neuroscience
Visual Perception
Cognitive Neuroscience

Background:

Natural images contain occluded objects, making object recognition challenging.
Identifying borders between objects is crucial for visual recognition.
Neural mechanisms of border ownership processing in the human visual cortex remain unclear.

Purpose of the Study:

To investigate the neural coding of border ownership in the human visual cortex.
To determine the role of the V2 area in processing border ownership.
To examine the influence of attention on border ownership selectivity.

Main Methods:

Designed specific visual stimuli to manipulate contextual information and induce changes in border ownership.
Utilized functional Magnetic Resonance Imaging (fMRI) adaptation technique.
Measured brain activity in human subjects.

Main Results:

Border ownership selectivity in the V2 area was found to be robust and reliable across individuals.
The processing of border ownership in V2 was significantly modulated by attention.
V2 demonstrates a critical role in border ownership processing.

Conclusions:

The study provides the first human evidence implicating the V2 area in border ownership processing.
Border ownership computation in V2 is influenced by attentional modulation from higher cortical areas.
Understanding border ownership is key to comprehending object recognition in cluttered natural scenes.