Now, in the new paper published in the journal Nature Neuroscience, researchers wanted to find out if these two rewards — sweetness and calories — travel along
the same brain circuitry.
The scientists suggest
this same brain circuitry could be involved in integrating other motivational drive states such as thirst.
Not exact matches
Power activates the very
same reward
circuitry in the
brain and creates an addictive «high» in much the
same way as drug addiction.
«Each area of the
brain is different with distinct cell types and connectivity, so if we can confirm that one area of
circuitry is more involved in a particular symptom than another, we may eventually be able to treat a depression patient more efficiently than treating everyone the
same way.»
At the
same time, animal studies exploring the biochemistry of the postpartum
brain are uncovering changes in neural
circuitry and areas in need of repair.
In fact, attractive faces activate the
same reward
circuitry in the
brain as food, drugs and money.
The answer may be that their
brains simply don't work the
same: Genes, culture, and personal experience have wired their moral
circuitry in different patterns.
For example, scientists could confirm or disprove whether an experience was truly linked with specific
brain circuitry by first identifying networks activated when a rat encounters, say, an anxiety - provoking event, and afterwards stimulating that
same network directly to determine whether the animal shows evidence of experiencing the
same mental state.
Virtually the
same players were operative in follow - up experiments examining such reaction time - related
circuitry in mouse
brain.
Research on animals often fails to produce the
same results in humans, though the researchers said the
brain circuitry involving the reward system is similar in all vertebrates.
It may simply be that effects like this aren't the result of direct selection, but are just byproducts of the fact that the
brain uses the
same circuitry to respond to different stimuli, so there can be unintended cross-talk between inputs.
That's not to say that visceral and moral disgust perfectly overlap in the
brain, but they use enough of the
same circuitry that the feelings they evoke can sometimes bleed together, warping judgment.