from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of, relating to, or situated in the anterior part of the frontal lobe.
- adj. Situated anterior to the frontal bone.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of, pertaining to or situated in the anterior part of the frontal lobe
- adj. Of, pertaining to or situated in front of the frontal bone
- n. A prefrontal bone, scale, etc.
from the GNU version of the Collaborative International Dictionary of English
- adj. Situated in front of the frontal bone, or the frontal region of the skull; ectethmoid, as a certain bone in the nasal capsule of many animals, and certain scales of reptiles and fishes.
from The Century Dictionary and Cyclopedia
- Of or pertaining to the fore part of the forehead, or to the part of the skull in which is the bone called the prefrontal.
- n. A bone of the anterior region of the skull of sundry vertebrates, being a lateral ethmoidal or ante-orbital ossification, most distinct in vertebrates below birds.
- n. A prefrontal process or shield.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. anterior to a frontal structure
Sorry, no etymologies found.
In the 1930s, Dr. Egas Moniz, a Portuguese neurologist, began experimenting with a new form of what became known as the prefrontal lobotomy, a radical surgery that severed nerve fibers in the part of the brain associated with emotions.
To address the question of whether intention might be reflected in prefrontal cortical activity, the researchers in the new work used functional magnetic resonance imaging (fMRI) to assess brain activity while subjects concentrated on their choice of intended mental action, but prior to execution of the action.
In the teenagers an unexpectedly high level of activity was observed in the part of the brain known as the prefrontal cortex, which is a region known to be involved in multi-tasking and making decisions.
The researchers found that the obese people had less brain activity in the area known as the prefrontal cortex, where powers of inhibition choosing not to do things are based, even when their blood sugar levels were normal.
Apparently my brain — or the part of it I now refer to as my prefrontal Spitzer lobe — finds the sight of Edie Falco somewhat exciting.
Those whose explanations reflected empathy for the wrong-doers relied on a part of the brain above the eye-sockets called the prefrontal cortex (PFC).
What we often see with lack of empathy is problems in what's called the prefrontal cortex, or the front third of the brain.
But the part of your brain called the prefrontal cortex which is your brakes in your brain takes a much longer time to develop.
Apparently my brain—or the part of it I now refer to as my prefrontal Spitzer lobe—finds the sight of Edie Falco somewhat exciting.
Psychologist Peter Hall of Waterloo University in Ontario, Canada, speculated that the connection between intention and behavior might lie in the neurons, specifically in a part of the brain called the prefrontal cortex.