All articles tagged with #midbrain
A new study reveals that the ancient midbrain circuit in the superior colliculus is involved not only in reflexive eye movements but also in high-level cognitive functions like decision-making, challenging traditional views that separate perception and reflection in the brain.
Scientists have discovered a unique group of nerve cells in the midbrain that can pause all movement, resembling a 'pause-and-play' pattern, and restart precisely where it ceased. This finding, unrelated to fear but potentially associated with attention, contributes to our understanding of how the nervous system controls movement. The researchers believe that these nerve cells, found in an area called the pedunculopontine nucleus (PPN), may be over-activated in Parkinson's disease, shedding light on the motor symptoms of the condition. Further research is needed to confirm the role of these cells in attention and their implications for Parkinson's disease.
Scientists have discovered a group of nerve cells in the midbrain, specifically in the pedunculopontine nucleus (PPN), that can halt all movement when stimulated. These cells, identified by the marker Chx10, impact various forms of motor activity, including breathing and heart rate. The unique "pause-and-play pattern" observed in these cells may be related to a state of alertness or focused attention, rather than fear. Understanding these cells could provide insights into the motor symptoms seen in Parkinson's disease.