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Neural representations of categories, rules and concepts

… K. Miller’s lab has made a series of discoveries about how neurons the brain’s prefrontal cortex (PFC) enables us to … papers. In one he and co-authors were able to identify PFC neurons that faithfully represented that categories of images … of a pictured object is transformed from basic sensory processing to abstract categorization as it flows …

Study models how ketamine’s molecular action leads to its effects on the brain

May 20, 2024

‘Rewiring’ cortical circuits

… plasticity becomes manifest at the connection between two neurons called a synapse and that most of the synapses neurons form to receive input from others reside on their … but is a lifelong process. In 2006 they found that while sensory areas of the brain show much greater degrees of …

Symposium speaks to the many powers of brain rhythms

April 09, 2018

… and represent the cohesive coordination of ensembles of neurons, they are very useful for exploring the brain. “We … our goals and priorities control the representation of sensory information by gamma waves, which gives us the … Symposium, describing how persistent gamma rhythms in non-sensory, fast-spiking cells in the brain region responsible …

A molecular approach to autism

Spring break tours give high schoolers a chance to see science up close

March 31, 2023

… Brady Weissbourd describes an experiment with jellyfish neurons to an audience of students from Everett and Lawrence … instance, he’s done experiments where he’s killed all the neurons needed for a jellyfish to execute a particular … with Fragile X syndrome can experience hypersensitivity to sensory stimulation, he said, and could point to ways to …

Mapping the brain at high resolution

January 17, 2019

… can reveal, much more quickly than other methods, how neurons connect throughout the brain Researchers have … and speed. Using this approach, they can locate individual neurons, trace connections between them, and visualize … that control memory formation and recall, to study how sensory input leads to a specific behavior, or to analyze how …

Aging Brain Initiative

Resolving a seeming contradiction, study advances understanding of visual recognition memory

September 27, 2023

… found that when animals viewed something familiar, neurons in cortex, or outer layer of their brain, would be … studies had suggested that SRP occurs among excitatory neurons in layer 4 of the visual cortex and specifically … to the thalamus (a deeper brain region that relays sensory information) and to inhibitory neurons in layer 4, …

Behind the scenes, brain circuit ensures vision remains reliable

September 08, 2021

… in representation is governed by a circuit of inhibitory neurons vision visual cortex multiphoton microscopy visual system inhibitory neurons inhibitory circuits … is important for controlling the temporal fidelity of sensory processing. A potential biophysical function of the …