brain and cognitive sciences

Model sheds light on purpose of inhibitory neurons

Model sheds light on purpose of inhibitory neurons

Researchers at MIT’s Computer Science and Artificial Intelligence Laboratory have developed a new computational model of a neural circuit in the brain, which could shed light on the biological role of inhibitory neurons — neurons that keep other neurons from firing.

A new glimpse into working memory

A new glimpse into working memory

When you hold in mind a sentence you have just read or a phone number you’re about to dial, you’re engaging a critical brain system known as working memory. For the past several decades, neuroscientists have believed that as information is held in working memory, brain cells associated with that information fire continuously. However, a new study from MIT has upended that theory, instead finding that as information is held in working memory, neurons fire in sporadic, coordinated bursts.

“Lost” memories can be found - Neuroscientists retrieve missing memories in mice with early Alzheimer’s symptoms.

“Lost” memories can be found - Neuroscientists retrieve missing memories in mice with early Alzheimer’s symptoms.

In the early stages of Alzheimer’s disease, patients are often unable to remember recent experiences. However, a new study from MIT suggests that those memories are still stored in the brain — they just can’t be easily accessed.