Mind Peak WaveRider Bedienerhandbuch PDF herunterladen (Seite 153)

WaveRider Operating Manual

153

On the parietal side of the rolandic fissure lies the sensory cortex which receives information

about body position, muscles, touch and pressure from all over the body.

The temporal lobe is involved in hearing, perception and memory. It also plays a part in

language.

The occipital lobe is involved in vision. The primary visual cortex is at the extreme posterior

of the occipital lobe.

Located between the cerebral hemispheres and above the brain stem are several very

important "deep" brain structures. The Limbic system, the thalamus and the basal ganglia.

The limbic system consists of the hippo campus, hypothalamus and amygdala. The limbic

system regulates homeostasis, or the maintenance of constant body temperature, blood

pressure, heart rate, blood sugar levels etc.. The hypothalamus does this through its

connections to the autonomic nervous system. In addition, the hypothalamus controls the

pituitary gland which in turn is the master gland of the endocrine system. The hippocampus is

involved in memory storage. The amygdala coordinates the autonomic and endocrine systems

and is involved in emotions.

The basal ganglia are located on either side of the limbic system. They consist of five bi-

laterally paired structures: the caudate nucleus, putamen, globus pallidus, sub thalamic

nucleus and substantia nigra. They are concerned with movement control, in particular

initiating movements. Unlike other parts of the movement system the basal ganglia do not

connect to the spinal cord but to the cortex by way of the thalamus.

Many neural pathways pass through the thalamus. Indeed, the thalamus is a crossroads for

most of the sensory and motor information that is relayed to the cerebral cortex. In addition, it

helps to initiate consciousness and make preliminary classifications of external events.

Thalamo-cortical pathways are thought to account for much of the rhythmicity seen in

brainwaves. Alpha waves rhythms are initiated in the thalamus and radiated to the cerebral

cortex.

1 2 ... 148 149 150 151 152 153 154 155 156 157

Keine Kommentare

Mind Peak WaveRider Bedienerhandbuch Seite 153