Vibrant New Brain Scans Reveal What Makes You You
Today, neuroscientists have better guides to our wetware. Using techniques like fluorescent microscopy and electrophysiology, they can trace neural pathways with astonishing precision, turning scans and bits of dissected matter into vibrant images that reveal the structures and signals that make you you.
A lab at Harvard created software to diagram individual vesicles—small lipid bubbles (yellow) that hold neurotransmitters. This one likely contains glutamate, which helps regulate signals throughout the nervous system.