A new way of looking at a cell’s surface reveals the distribution of small molecules in the cell membrane, changing the understanding of its organization.
Neuroscientists found that astrocytes may be responsible for the rapid improvement in mood in depressed patients after acute sleep deprivation. This study identified how astrocytes can regulate a neurotransmitter involved in sleep.
Scientists developed an implant that is able to genetically modify specific nerve cells, control them with light stimuli, and measure their electrical activity all at the same time.
Scientists at UCSF uncover the molecular basis of gentle touch, one of the most fundamental, but least well understood of our senses.
The Who asked “who are you?” but Dartmouth neurobiologist Jeffrey Taube “where are you?” and “where are you going?” Taube is not asking philosophical or theological questions. He is investigating nerve cells in the brain that function in establishing one’s location and direction.
Scientists developed a method for decoding neural circuit diagrams. Using measurements of total neuronal activity, they can determine the probability that two neurons are connected with each other.
Researchers discovered a new group of nerve cells that regulate processes of learning and memory. These cells act as gatekeepers and carry a receptor for nicotine, which can help explain our ability to remember and sort information. The newly discovered gatekeeper nerve cells, also called OLM-alpha2 cells, provide an explanation to how the flow of information is controlled in the hippocampus.
UCLA researchers have for the first time measured the activity of a brain region known to be involved in learning, memory and Alzheimer’s disease during sleep. They discovered that the entorhinal cortex behaves as if it’s remembering something, even under anesthesia, a finding that counters conventional theories about memory consolidation during sleep.
Scientists used an electronic prosthetic system to tap into existing circuitry in the brain at the cellular level and record the firing patterns of multiple neurons in the prefrontal cortex, the part of the brain involved in decision-making. They then “played” that recording back to the same brain area to electrically stimulate decision-based neural activity. Not only did it restore function, in some cases, it also improved it.
By watching individual neurons at work, a group of psychologists at the University of Wisconsin-Madison has revealed just how stress can addle the mind, as well as how neurons in the brain’s prefrontal cortex help remember information in the first place.