Brief
Mouse Study Shows Visual Cortex Areas Build Rapid Consensus
The research, published in Nature Neuroscience, reveals how V1 and LM coordinate to maintain a coherent visual perception.
By Felo News Desk · Published
Researchers using mice have shown that two neighboring visual areas – the primary visual cortex (V1) and the lateromedial visual area (LM) – can quickly reach a shared interpretation of visual stimuli, according to a study published in Nature Neuroscience.
The team trained mice to discriminate between two tilted patterns, rewarding only one orientation. By briefly silencing either V1 or LM during the task, they recorded how the other area responded without its partner’s input. They found that when activity patterns in both areas agreed, the signals persisted longer, whereas mismatched patterns vanished within a fraction of a second.
Using the recordings, the researchers built an artificial neural‑network model of the V1‑LM circuit, allowing them to simulate the effects of specific neuronal manipulations. Mitra Javadzadeh, a Cynthia R. Stebbins Fellow at Cold Spring Harbor Laboratory, described the mechanism as “consensus building,” suggesting it helps the brain maintain a coherent view of the world.
Key facts
- The study examined the primary visual cortex (V1) and lateromedial visual area (LM) in mice. (scitechdaily.com)
- When activity patterns in V1 and LM matched, they lasted longer; mismatches faded within a fraction of a second. (scitechdaily.com)
- Researchers silenced each area during a visual discrimination task to record the other's response. (scitechdaily.com)
- An artificial neural‑network model of the V1‑LM circuit was created to simulate neuronal manipulations. (scitechdaily.com)
- Mitra Javadzadeh called the observed mechanism "consensus building." (scitechdaily.com)
Sources
- [1] scitechdaily.com — originally reported as “When Your Eyes Mislead You, the Brain Finds Common Ground”
