The Scientist : Brain Cell Video

Here's a pretty picture worth a look: a spinning 3-D view of populations of new neurons in a rat hippocampus. Check it out at

The Scientist : Brain Cell Video

Needs a fast connection, so take a pass if you're using dial-up.

More like this

I wrote before about how there has been a bit of a debate about whether the hippocampus is involved in encoding spatial maps or is involved more generally in relational memory. Well, the argument for general relational memory just got a big boost. Johnson and Redish published a paper in the…
The purpose of dreaming is learning. While you are sleeping, your brain is digesting the day, deciding which new experiences to consolidate into long-term memory. That's the implication of Matthew Wilson's latest paper, which documented the neural activity in the brains of dreaming rats. Here's the…
Over at Neurophilosophy, Mo has an excellent summary of a drug in Phase II clinical trials that tries to treat depression by up-regulating neurogenesis. In other words, it wants to ease your sadness by giving you more new brain cells. What these new brain cells do, exactly, remains a mystery, but…
Spatial navigation is a complex mental task which is strongly dependent upon memory. As we make our way around a new environment, we look for easily recognisable landmarks and try to remember how their locations are related in space, so that when we return to it we can negotiate our path.  We know…

Right on that page there's an interesting talkback which made me think about depression in a new way, other than "just" faulty neurons or sad experiences in life.

I wonder how many different sorts of depression are there...

(sorry for double posting this talkback, I typed in my old email address instead of this one)

Right on that page there's an interesting talkback which made me think about depression in a new way, other than "just" faulty neurons or sad experiences in life.

I wonder how many different sorts of depression are there...

My own experience researching depression -- or rather researching people who research depression -- suggests that, like autism, depression will increasingly get broken down into diagnostic and mechanistic subtypes as we learn more about it. Depression as currently described is really a set of symptoms rather than defined mechanisms; as we spot different mechanisms at work, the diagnoses, the treatments, and perhaps the very concept of depression will change.