Crossword clues for neocortex
The Collaborative International Dictionary
neocortex \neocortex\ n. The cortical part of the neencephalon; the most recently evolved part of the cerebral cortex of the brain of higher animals, and the site of most of the higher brain functions; called also neopallium.
Syn: neopallium.
Wiktionary
n. (context neuroanatomy English) The top layer of the cerebral hemispheres in the brain of mammals; part of cerebral cortex.
WordNet
n. the cortical part of the neencephalon [syn: neopallium]
Wikipedia
The neocortex ( Latin for "new bark" or "new rind"), also called the neopallium ("new mantle") and isocortex ("equal rind"), is a part of the mammalian brain. Of all the mammals studied to date, including humans, dolphins ( Long-finned pilot whale) have been found to have the most neocortical neurons. In the human brain, the neocortex is the largest part of the cerebral cortex which covers the two cerebral hemispheres, with the allocortex making up the rest. The neocortex is made up of six layers, labelled from the outermost inwards, I to VI. In humans, the neocortex is involved in higher functions such as sensory perception, generation of motor commands, spatial reasoning, conscious thought and language. There are two types of cortex in the neocortex – the true isocortex and the proisocortex.
The neocortex may refer to:
- Neocortex, a part of the mammalian brain
- Doctor Neo Cortex, a video game character from the Crash Bandicoot series
- Neo Cortex, a trance music act best known for their song, Elements
Usage examples of "neocortex".
A schematic representation of this picture of the human brain is shown opposite, and a comparison of the limbic system with the neocortex in three contemporary mammals is shown above.
The brain of a human fetus also develops from the inside out, and, roughly speaking, runs through the sequence: neural chassis, R-complex, limbic system and neocortex.
From such cases, it seems apparent that so complex a mammalian activity as sex is controlled simultaneously by all three components of the triune brain-the R-complex, the limbic system and the neocortex.
While most olfactory processing is in the limbic system, some occurs in the neocortex.
On the other hand, Penfield has found that electrical stimulation deep into and below the temporal lobe in the neocortex and limbic complex can produce a waking state in epileptics very similar to that of dreams denuded of their symbolic and fantastic aspects.
In the metaphor of the triune brain, dreams are partially a function of the R-complex and the limbic cortex, but not of the rational part of the neocortex.
R-complex and the limbic system, and the occasionally blazing intuitive insight as the activity of the right hemisphere of the neocortex.
Thus an essential step in human evolution must have been the transfer of control of vocal language from the limbic system to the temporal lobes of the neocortex, a transition from instinctual to learned communication.
THE NEOCORTEX Even in fish, lesions of the forebrain destroy the traits of initiative and caution.
With the large-scale development of the neocortex in higher mammals and primates, some neocortical involvement in the dream state developed-a symbolic language is, after all, still a language.
Early neurophysiologists held that the neocortex was primarily connected only to other places in the neocortex, but it is now Known that there are many neural connections with the sub-cortical brain.
On the other hand, Penfield has found that electrical stimulation deep into and below the temporal lobe in the neocortex and limbic complex can produce a waking state in epileptics very similar to that of dreams denuded of their symbolic and fantastic aspects.
But each of these skills required significant advances in the evolution of the brains and particularly the neocortices of our ancestors.
Other mammals, even other nonprimate and non-cetacean mammals, have neocortices.
In the human brain, the part that performs the autoregulation is restrained by the neocortex.