New answers tagged

1

They are not writing about "after conditioning" as you write, but, importantly, after extinction. What they observe is that, during learning, the response to the conditioned stimulus (CS+) becomes more similar to the response to the US. In the n-dimensional space in which a population response lives, you can describe this as the population vector ...


0

Given recent advances in AI related neuroscience, I can easily imagine a future where it is possible to decode thoughts and impressions. In fact, we are already nearly there. It seems like the limitation is not the decoding of memories, but their detection or measurement: While you are seeing an image and the brain actively is working on it its perception, ...


0

Axonal boutons are named as such due to their shape. Dendro-dendritic synapses do not resemble this shape and are never referred to as boutons. It does not appear that synaptophysin is expressed on dendrites (Fletcher et al. 1991), but I am unaware of a study that targeted dendro-dendritic synapses specifically. References Fletcher, TL, P Cameron, P De ...


1

PSD-95 is a protein located in the post-synaptic region inside a cell. In fact it's named for this, "post synaptic density-95" referring to the dense appearance of the post synaptic area on an EM microscope and this protein's presence there. "Synaptic targeting" in this context refers to how that protein gets to where it belongs (the ...


3

Short answer The structural anatomy of the cerebral cortex is closely related to its functionality. The cortex is a thin sheet of only a few cell layers deep. Expansion of processing power requires enlargement of the surface area of this sheet, and simply increasing it's volume doesn't help. As a consequence, gyri and sulci developed during evolution to ...


1

What you're describing would likely cause hearing loss, which could later result in tinnitus, but not by the mechanism you describe. Hair cells transduce sound via remarkably fragile connections between stereocilia. The channels are closed until tension pulls the channels open (see Fettiplace 2011 for a review that covers pretty much all of sound ...


Top 50 recent answers are included