Sweet Serotonin

The Dorsal Raphe Nucleus, or DRN, is an area of the brain located along the midline of the brainstem, which is found towards the back of your brain. The DRN contains the largest number of serotonin-containing neurons, called serotonergic neurons, in the brain. You may recognize serotonin from the drug advertisements on TV, as it is a popular target for treating depression. Unsurprisingly, serotonin is … Continue reading Sweet Serotonin

Remote Brain Stimulation: A new treatment for Parkinson’s disease?

by Anqi Zhang figures by Daniel Utter What do you think of the idea of inserting a long metal wire into your brain? That’s what doctors have done to ease the symptoms of Parkinson’s disease over the past 20 years. Sound scary? A new technique called temporal interference stimulation is exploring the possibility of achieving the same effects by attaching electrical stimulators to the outside of … Continue reading Remote Brain Stimulation: A new treatment for Parkinson’s disease?

Dog owners rejoice! Dogs could be smarter than cats

A new study has compared the brains of dogs and cats and found cats wanting. Scientists counted the number of neurons in the cerebral cortex of brains and found that dogs have more than double the number of neurons of a cat. While this doesn’t immediately rule that dogs are the smarter species, it does suggest they have a higher capacity for learning. Continue reading Dog owners rejoice! Dogs could be smarter than cats

One Neuron to Rule Them All?

  The brain is arguably the most complex organ in the human body and understanding its structure could help explain a fundamental mystery of human existence: consciousness. The brain is composed of billions of specialized cells called neurons, which communicate with each other via electrical and chemical signals. Neurons are responsible for processes ranging from vital life functions to the ability to walk, talk remember, … Continue reading One Neuron to Rule Them All?