Image of the Day: Red Alert

Researchers unveil the neural basis of alertness in larval zebrafish.   

By The Scientist Staff | November 9, 2017

A transparent larval zebrafish brain showing a flux of chemical messengers: serotonin (red), dopamine and norepinephrine (yellow), and acetylcholine (cyan)KARL DEISSEROTH, STANFORD UNIVERSITY

Scientists have developed a new imaging method to examine the brain circuitry underlying alertness in zebrafish. The methodMulti-MAPintegrates real-time neuroimaging with activity monitoring of chemicals in the brain. The technique allowed the researchers to identify cell types whose activity increased during periods of heightened alertness. They considered the animals to be “alert” when the fish were on the verge of swishing their tails in response to a threatening stimulus. 

M. Lovett-Barron et al., “Ancestral circuits for the coordinated modulation of brain state,” Cell, doi:10.1016/j.cell.2017.10.021, 2017. 

Add a Comment

Avatar of: You

You

Processing...
Processing...

Sign In with your LabX Media Group Passport to leave a comment

Not a member? Register Now!

LabX Media Group Passport Logo

Popular Now

  1. Two University of Rochester Professors Resign in Protest
  2. Dartmouth Professor Investigated for Sexual Misconduct Retires
  3. Theranos Leaders Indicted For Fraud
    The Nutshell Theranos Leaders Indicted For Fraud

    Federal prosecutors filed criminal charges that allege the company’s promise to revolutionize blood testing swindled investors out of hundreds of millions of dollars and put patients in danger.

  4. Koko the Signing Gorilla Dies at 46