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Related Experiment Video

Updated: Aug 12, 2025

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

Correlation between neural responses and human perception in figure-ground segregation.

Motofumi Shishikura¹, Hiroshi Tamura^2,3, Ko Sakai¹

¹Department of Computer Science, University of Tsukuba, Tsukuba, Japan.

Frontiers in Systems Neuroscience

|January 30, 2023

Summary

Neural signals in the V4 area of macaque monkeys correlate with human perception of figure-ground segregation. This suggests that V4 neurons contribute to how we visually separate objects from backgrounds.

Keywords:

V4 figure-ground segregation physiological experiment population coding psychophysical experiment

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Published on: June 3, 2013

Area of Science:

Neuroscience
Computational Neuroscience
Visual Perception

Background:

Figure-ground (FG) segregation is vital for object recognition and scene understanding.
Neural mechanisms for FG segregation are studied in the V4 visual area of macaque monkeys, identifying FG neurons.
The contribution of these FG neurons to perceptual FG segregation remains unclear.

Purpose of the Study:

To investigate the correlation between perceptual consistency (PC) and neural signal reliability in V4 FG neurons.
To determine if V4 FG neurons contribute to the perception of figure-ground segregation.

Main Methods:

Evaluated perceptual consistency (PC) for stimuli used in V4 neural recordings.
Analyzed correlations between PC and the reliability of single-neuron and population responses to FG stimuli.
Examined correlations between PC and neural latencies in FG modulation.

Main Results:

Stimuli with higher PC evoked more consistent and greater modulation in single V4 neurons.
Higher PC stimuli resulted in greater consistency in V4 population responses.
Higher PC stimuli correlated with shorter reaction times in human FG perception and shorter modulation latencies in V4 FG neurons.

Conclusions:

V4 FG neurons' responses show significant correlations with human FG perception.
V4 neurons with FG-dependent responses likely contribute to the perception of figure-ground segregation.