MeSH tree: A08.186.211.200.885.287.249.487
Cannabis and tobacco—whether used on their own or together—can affect the brain's structure. A recent study involving systematic review and meta-analysis of more than 103 studies found that both substances are linked to reduced ...
A Boston University-led research team has discovered a dopamine signal in the brain that helps determine whether you are moving toward or away from a goal, potentially shedding new light on how the brain uses visual information ...
Mar 19, 2026
0
33
Scientists have long known that dopamine helps the brain learn from rewards, but a new computational model shows how for people with schizophrenia this learning system can break down and simultaneously produce two very different ...
Mar 18, 2026
0
34
Scientists have uncovered a powerful strategy that the brain uses to coordinate chemical signaling. In a new study, researchers found that in the striatum, a brain region central to learning and moving, one chemical signaling ...
Mar 16, 2026
0
36
The stress hormone cortisol disrupts the brain's navigational system. It impairs the function of the grid cells that play a crucial role in orientation. This has been verified by researchers from Ruhr University Bochum, Germany, ...
Mar 13, 2026
0
63
For almost a century, psychology and neuroscience researchers have been trying to understand the processes via which humans and other animals acquire new skills or learn to deal with specific situations. One well-known and ...
Humans and animals share a remarkable capacity to sense when others are in distress and respond with comforting behavior. But the motivation for doing so, and why it sometimes breaks down, has been poorly understood. UCLA ...
Mar 6, 2026
0
31
When we learn a new motor skill—whether mastering a piano passage or refining balance while walking—the brain must reorganize the circuits that control movement. For decades, this process of synaptic remodeling has been attributed ...
Feb 24, 2026
0
13
Neuroscience rarely enjoys clean experiments. Most brain disorders are mosaics of risk genes, aging, lifestyle and chance that leave their origins obscured. Huntington's disease (HD) is different. It begins with a single ...
Feb 18, 2026
0
11
For most people, the intense ache that follows the death of a loved one eventually softens, and daily life resumes. But for some, the pain does not ease with time—a condition known as prolonged grief disorder (PGD). In a ...
Feb 18, 2026
1
92
