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Q. Global alteration of brain functioning - Sleep?
Sleep involves a global alteration of brain functioning, and occupies one third of our lives, The transition from waking to sleep is one of the most dramatic natural alterations in consciousness. Sleep is differentiated from waking state by reduction in neuronal responsiveness, inattention to sensory stimuli, and loss of consciousness. These two states differ fundamentally in most physiological parameters including the activity of a variety of key neurotransmitter systems.
Sleep Structure: Electroencephalogram (EEG) recordings reveal the two most basic states of sleep - REM (Rapid Eye Movement) sleep and NREM sleep. NREM comprises of four stages (Stages1 to 4). EEG pattern of wakeful state and different stages of sleep is explained further.
Active wakefulness: It is accompanied by low amplitude, high frequency beta waves. In relaxed wakefulness with eyes closed, the brain emits alpha waves. Alpha waves are low amplitude brain waves of about 8 to 13 cycles per second.
Goat and sheep M. mycoides subsp. capri is the cause of caprine pleuropneumonia, a serious malady of goats. The disease is prevalent in certain parts of this country. The mort
classifcation of protozoans
In this section you will be introduced to a variant of Darwinian concept of natural selection which he termed sexual selection. You may have observed very distinct and striking dif
A zoologist is investigating a population of squirrels whose coat color is controlled by a single gene whose two alleles (B1 & B2) are codominant. B1B1 individuals are black, B1B2
Do sea urchins have teeth? Sea urchins have a teeth-like structure juxtaposed to the mouth and made of five teeth linked to ossicles and muscle fibers. This structure, called a
Diastolic dysfunction is responsible for one third of cases of heart failure alone and rest two third of cases in combination with systolic dysfunction. Diastolic dysfunction c
Pseudorabies Pseudorabies is a viral disease caused by pseudorabies virus (PRV) that is classified under family Herpesviridae. This disease is also known as “Aujeszky’s diseas
Why do membranes figure so prominently in eukaryotic cells? What essential function do they serve?
what are the chemical changes takes place during cleavage
VITAMIN - E Also known as beauty vitamin / tocopherol / antisterlity vitamin . Antioxidant because it inhibits peroxide formation. It stops undesired oxidation. It
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