The science behind itch-induced scratching

The study published in Neuron explores a specific category of neurons in the periocodactyl gray area of the brain that tracks itch-induced scratching in mice. Researchers from the Chinese Academy of Sciences examined these neurons in freely moving mice, which were induced to scratch using histamine or chloroquine. The study focused on neurons producing the neurotransmitter tachykinin one, which also produces glutamate and neuropeptides. It was observed that eliminating these neurons reduced itch-induced scratching, while stimulating them caused spontaneous scratching without histamine or chloroquine.

What is the primary focus of the study published in the journal Neuron?

• Neural pathways involved in pain perception

• The impact of diet on brain function

• Tracking itch-induced scratching behavior in mice

• The role of neurons in memory formation

Which area of the brain is associated with tracking itch-induced scratching?

• Hippocampus

• Cerebellum

• Periocodactyl gray

• Amygdala

What substances were used to induce scratching in the mice?

• Serotonin and dopamine

• Histamine and chloroquine

• Adrenaline and cortisol

• Insulin and glucagon

What neurotransmitter is produced by the neurons studied in the research?

• Serotonin

• Dopamine

• Acetylcholine

• Tachykinin one

What was the effect of eliminating tachykinin one neurons in the study?

• Increased scratching behavior

• Decreased itch-induced scratching

• No change in behavior

• Increased appetite