What happens when you damage the reticular formation?
It plays a central role in states of consciousness like alertness and sleep. Injury to the reticular formation can result in irreversible coma. Habituation: This is a process in which the brain learns to ignore repetitive, meaningless stimuli while remaining sensitive to others.
When researchers lesioned severed from other brain structures the cat went into a deep coma and never regained an alert state?
Cards
| Term During the process of reputake, excess neurotransmitter is ____ | Definition Returned to the presynaptic neuron |
|---|---|
| Term when researchers lesioned the ___ of a cat, the cat went into deep coma and never regained an alert state | Definition reticular formation |
How is reticular formation important in screening important information and in arousing the cortex?
The reticular formation may be best known for its role in promoting arousal and consciousness. The fibers that arise from these locations combine with other pathways that ascend to the cerebral cortex and thalamus to promote wakefulness, vigilance, and overall arousal.
Where is the reticular formation located and what is its function?
It occupies the anterior portions of medulla, pons, midbrain, hypothalamus, and thalamus. The reticular formation is strategically placed among the important nuclei and the nerve fibers crossing the brainstem that is crucial for its various functions.
What happens if the corpus callosum is damaged?
Lesions of any part of the corpus callosum might lead to loss of contact between bilateral hemispheres that cause mental disorders, pseudobulbar palsy, speech and movement ataxia.
Does your heart stop in a coma?
In some cases a person can descend into a persistent vegetative state, where the brain has lost its higher functions (including consciousness, self-awareness and personality) but retains involuntary functions such as breathing and swallowing, heart rate and blood pressure.
What brain region would damage perhaps leave you in a coma?
The brainstem tegmentum, including the reticular formation, contains distinct nuclei, each of which has a set of chemical, physiological and anatomical features. Damage to the brainstem tegmentum is known to cause coma, the most radical disturbance of consciousness.
What happens if the right hemisphere is damaged?
With right hemisphere brain damage (known as RHBD or RHD), a person may have trouble with things like attention, perception, and memory, as well as loss of mobility and control on the left side of the body, since each hemisphere controls functions on the opposite side of the body.