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Tag: "cerebellum" at biology news

On automatic pilot

...cerebrum can perform other tasks. However, how the cerebellum performs this task is not clear. Dutch researcher ... Subsequently they investigated which parts of the cerebellum are involved in regulating the activity of a single muscle. Furthermore, they examined the consequen...

Memory loss affects more of the brain than previously thought

...val), left hippocampus (during retrieval) and left cerebellum (during formation) and an increased level of activation in the posterior frontal lobes (during retrieval). "These findings suggest that we should be paying closer attention to frontal lobe function in detecting people at risk for AD and may also poi...

How to grow a bigger brain

...fish reared in tanks, but the relative size of the cerebellum compared to the rest of the brain was about the same as in fish reared in tanks with stones. ...

Carnegie Mellon scientists create PNA molecule with potential to build nanodevices

...ntrast, expression in one non-cortical region, the cerebellum (whose principal functions include movement), was largely unchanged with age. In addition to confirming a prediction of the free-radical theory of aging (namely, that the more metabolically active cortex should have a greater reduction in gene activi...

Navigating the brain for sense of direction as paradigm for higher cognitive functions

...ntrast, expression in one non-cortical region, the cerebellum (whose principal functions include movement), was largely unchanged with age. In addition to confirming a prediction of the free-radical theory of aging (namely, that the more metabolically active cortex should have a greater reduction in gene activi...

Gene Expression in the Aging Brain

...ntrast, expression in one non-cortical region, the cerebellum (whose principal functions include movement), was largely unchanged with age. In addition to confirming a prediction of the free-radical theory of aging (namely, that the more metabolically active cortex should have a greater reduction in gene activi...

Human cerebellum and cortex age in very different ways

...ellows. "The fact that gene activity levels in the cerebellum remain more stable as a person ages suggests that ... and consistent. Changes in gene expression in the cerebellum were smaller and less coordinated. The study by Plotkin, Eisen, Berkeley graduate student Hunter B....

Investigating 'brain shrinkage' in alcoholics

...s cannot be replaced, those in the frontal cortex, cerebellum and several regions deep in the brain." However, he added, some changes can be transient, such as the shrinkage of dendrites, those fibers that allow neurons to "talk" with neighbouring neurons. "In experimental animals," he said, "these have been s...

Stem Cells Found In Cerebellum; Possible Cell of Origin for Childhood Brain Tumors

...tomas, could arise from stem cells gone awry. The cerebellum is the brain's control center for motor coordinati...s region. The Duke discovery of stem cells in the cerebellum suggests a possible origin for these normal cells and provides a starting point for understanding th...

Mosaic mouse technique offers a powerful new tool to study diseases and genetics

... researchers used MADM to study the development of cerebellum granule cells, which are the most abundant cells i...f mice and humans. "Usually people think that all cerebellum granule cells are the same--they are born, and their final function is determined by their interacti...

Some Brain Cells Change Channels

...s are most common in these particular cells in the cerebellum (so-called stellate cells). But Huganir thinks the channel changing is going to be relatively common in the brain. Whether through channel changing or other, more well-understood ways of fine-tuning its responsiveness, a brain cell's activity level ...

Gov't Creates Gene Database of Normal Human Tissues

...pression. For example, though the cerebrum and the cerebellum are two distinct parts of the brain, located apart from each other and doing very different jobs, their gene expression profiles reflected their commonality as part of the nervous system. Similarly, "muscle contraction" genes were found in skeletal m...

Some Brain Cells 'Change Channels' To Fine-tune The Message

...s are most common in these particular cells in the cerebellum (so-called stellate cells). But Huganir thinks the channel changing is going to be relatively common in the brain. Whether through channel changing or other, more well-understood ways of fine-tuning its responsiveness, a brain cell's activity level ...

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