Word: explicit
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...patients with Huntington's disease, it's the part of the brain called the basal ganglia that's destroyed. While these victims have perfectly intact explicit memory systems, they can't learn new motor skills. An Alzheimer's patient can learn to draw in a mirror but can't remember doing it; a Huntington's patient can't do it but can remember trying to learn. Yet another region of the brain, an almond-size knot of neural tissue known as the amygdala, seems to be crucial in forming and triggering the recall of a special subclass of memories that...
...mirror. As far as H.M. knew, the task was a brand-new one each time he confronted it. Yet as the days wore on, his performance improved. Some part of his brain was retaining a memory of an earlier practice session, a so-called implicit--rather than explicit, or consciously remembered--memory. People who suffer from Alzheimer's disease exhibit the same sort of behavior--and it's the medial temporal lobe that is first affected by this devastating disease...
...Within explicit, or declarative, memory, on the other hand, there are specific subsystems that handle shapes, textures, sounds, faces, names--even distinct systems to remember nouns vs. verbs. All of these different types of memory are ultimately stored in the brain's cortex, within its deeply furrowed outer layer--a component of the brain dauntingly more complex than comparable parts in lesser species. Experts in brain imaging are only beginning to understand what goes where, and how the parts are reassembled into a coherent whole...
Compelling though the story may be, it could be a case of adding two and two and getting five. "Elements of this story may be true, but they don?t all fit together in a causal explanation," says TIME Pentagon correspondent Mark Thompson. "Flight plans aren?t usually that explicit. And the U.S. wasn?t sharing information on raids by stealth aircraft with its NATO allies. Pentagon thinking was that the Serbs had been filling the sky with anti-aircraft fire and unguided missiles, and they simply got lucky. There?s no doubt that information was being passed along...
...mosh pit in front of the stage, from which security people would occasionally rescue a naked girl, her clothes ripped away by enthusiasts as she incautiously body-surfed the pit. From the stage, Fred Durst, singer for the aggressively untalented rap-metal band Limp Bizkit, made it explicit: he instructed the audience to "start some s___." Which some of the audience obediently did, scaling the sound tower and ripping away the plywood boards protecting electronic equipment...