Sentences with phrase «rat brain rewarded»

I learn through an aggregate experience of getting my face slammed into the ground over and over again until I'm conditioned to stop responding to stimuli inappropriately and start doing whatever gets my rat brain rewarded.

High - calorie and exceedingly pleasurable foods appear to change rat brain rewards circuitry, causing the rodents to continue to seek such fare.

Not exact matches

They used electrodes to measure the sensitivity of rats» brains to reward activity.

The researchers think that, you know, the sweetness is producing a reward effect in the brain that's actually stronger than cocaine's reward effect; same kind of dopamine mechanism and the researchers just think this is something biological that the rats are saying, «Hey this is sweet, must be food, must be good for me.»

Biochemical tests of the adult animals showed that THC - doused brains had the same number of receptors that responded to THC as unexposed rat brains, but more receptors for heroin and more of a compound associated with reward behavior in their neurons, the team reports online 5 July in Neuropsychopharmacology.

Not only do rats return over and over again to the place they were tickled, the handling triggers the neurotransmitter dopamine in key reward - related brain circuits in the rodents, he says.

Interestingly, these rats were still motivated to drink sugar water, indicating that the researchers had successfully targeted only alcohol - activated neurons, not the brain's overall reward system.

In rat models of non-dependent drinking, switching off the alcohol - linked neurons had little effect on future drinking — the brain just seemed to switch on a new group of neurons, as if the brain's path from alcohol to reward was not established yet.

However, when the «alcohol rats» were treated with OSU6162 it was found that the substance counteracted the low concentrations of dopamine in the brain reward system.

A study of rats published at the same time in the scientific journal Addiction Biology adds to the understanding of how OSU6162 works, as it shows that rats that voluntarily consumed alcohol for almost a year had lower levels of dopamine in their brain reward system than rats that had never drunk alcohol.

The researchers think that a junk diet causes lasting changes in the reward circuit parts of the rats» brain, for example, the orbitofrontal cortex, an area of the brain responsible for decision - making.

Now researchers reporting in the Cell Press journal Neuron on July 18 show in a study conducted in rats that even a single exposure to nicotine temporarily changes how the brain's reward system responds to alcohol and increases the reinforcing properties of alcohol via stress hormones.

A third electrode, running to the brain's pleasure center, incited the rats to move forward and rewarded them for making the proper turn.

Using a technique that employs light to control nerve cell activity, researchers in Professor Jeff Wickens» Unit inactivated a region of the brain and showed that it caused the rats to behave more flexibly while trying to get a reward.

Rewards sent directly to the brain can be more effective than food rewards, Burwell said, because rats can be rewarded in the moment of desired performance, and they don't become saRewards sent directly to the brain can be more effective than food rewards, Burwell said, because rats can be rewarded in the moment of desired performance, and they don't become sarewards, Burwell said, because rats can be rewarded in the moment of desired performance, and they don't become satiated.

McGehee and his colleague, post-doctoral researcher Huibert Mansvelder, PhD, working with brain tissue from rats, demonstrated how nicotine takes control of the reward pathways.

Spangler R, Wittkowski KM, Goddard NL, et al: Opiate - like effects of sugar on gene expression in reward areas of the rat brain.