This promising technique makes it possible to map
active brain structures in a living laboratory animal or in a human being.
Not exact matches
STOP SIGNS Brainlike
structures grown from autistic patients» stem cells (right) produced greater numbers of
brain cells that make other
brain cells less
active (green and red) compared with
structures grown from the cells of a non-autistic family member (left).
The memory - forming
structures lie deep within the
brain, he says, and they probably remain
active for a few minutes after
brain activity in the outer cortex has stopped.
Several years ago, one of the students in Verma's lab noticed that BRCA1 is very
active in the neuroectoderm, a sliver of embryonic tissue containing neural stem cells that divide and differentiate into the
brain's vast assortment of cell types and
structures.
When comparing
brain responses from each trial, the group identified several
brain structures that were more or less
active before and during the painful stimulus in those who experienced a placebo effect.
Due to the fact that a known visual pathway connects the only
brain structures that have been shown to be
active during magnetic orientation, our findings strongly support the hypothesis that migratory birds perceive the magnetic field as a visual pattern and that they are thus likely to «see» the magnetic field.
Citation: Heyers D, Manns M, Luksch H, Güntürkün O, Mouritsen H (2007) A Visual Pathway Links
Brain Structures Active during Magnetic Compass Orientation in Migratory Birds.
The influence an
active lifestyle had on the
brain structure of 876 individuals with an average age of 78 years was examined.
Enrichment toys and activities are designed to challenge dogs to think, problem solve and stay
active through
brain games, challenging sensory work, and
structured athletics and play.
The vertical and horizontal lines calm my
active brain and provide a
structure on which to work.
One final example is the prefrontal cortex, which is thought to play an important role in regulating behavior by suppressing impulses and emotions arising from the amygdala and other parts of the limbic system.50 — 52 In animal studies, exposure to chronic stress or glucocorticoids alters the synaptic connectivity within the prefrontal cortex, 52,53 and this may limit the ability of the prefrontal cortex to (1) suppress the impulsivity and aggression of the limbic system, and (2) execute adaptive responses (rather than maladaptive responses) to stress.54 — 56 Stress - induced changes in
brain structure parallel the well - described impact of significant childhood adversity on a variety of
brain functions, including the modulation of physiologic responses (hyper - responsive or chronically
active stress response), learning (impaired memory), and the regulation of behavior (the ability to execute adaptive vs maladaptive responses to stress).3, 39,57
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