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process of memory there are three stages of memoryencoding process it is the process of receiving sensory input and transforming it into a form or
q shifting attention by dopaminedopamine dopamine plays a pivotal role in aspects of shifting attention administration of d1d2 receptor antagonist
neurochemistry of attentiondifferent neurotransmitters systems are implicated in attention cholinergic dopaminergic and serotonergic systems play
q concentration of mental effortattention can be defined as the concentration of mental effort on sensory or mental eventsthere are three types of
q function of adenosine in brainadenosine has four different receptor subtypes a1 a2a a2b and a3 adenosine a2a receptors are concentrated in striatum
q show the peptide found in the brainthere are as many as 300 peptide neurotransmitters found in the brain peptide is a short protein consisting of
q function of glutamateglutamateit is the principal excitatory transmitter in the brain and is found throughout the central nervous
q what is function of gamaaminobutyric acidgaba is the principal inhibitory transmitter in the brain the concentration of gaba is up to 1000 times
a fifth member of the monoamine transmitter group is histamine that release histamine as their neurotransmitter is located in the hypothalamus and
q working of serotonergic cell bodiesthe major site of serotonergic cell bodies is in upper pons and the midbrain specifically the median and dorsal
the major concentration of noradrenergic and adrenergic cell bodies is found in locus ceruleus a nucleus in the reticular formation the axons of
q what are dopaminergic neuronsdopaminedopaminergic neurons occur in two closely connected groups ventral tegmental area vta of the midbrain and
q is acetylcholine found in brainacetylcholine is found in many parts of the brain having particularly high concentrations in the cerebral cortex
q use of neurotensin in consciousnessalthough little is known about the role of this peptide during the sleep-wake cycle it has recently been shown
q function of adenosine in consciousnessthe adenosine plays a major role in inducing sleep injections of adenosine promote sleep and decrease
q why we use histamine in consciousnesshistamine is involved in controlling the level of consciousness during waking the level of histamine
q function of dopamine in consciousnessan increase in dopamine activity produces an increase in wakefulness dopaminergic neurons in the ventral
q can serotonin used in consciousnessserotonin complements the action of noradrenalin and acetylcholine in promoting wakefulness and cortical
q function of noradrenaline in consciousnessincreased level of noradrenalin is implicated in wakefulness locus coeruleus noradrenergic neurons
q is acetylcholine used in consciousnesscholinergic mechanisms are important in wakefulness and cortical activation in general increased
alertness and sleep are dependent on the activity of the brain as a whole although different levels of consciousness are determined primarily by
stage 1 sleep as an individual becomes drowsy and enters stage 1 alpha wave decreases and theta waves appear theta waves with a frequency of about 6
q global alteration of brain functioning - sleepsleep involves a global alteration of brain functioning and occupies one third of our lives the
conscious experience is probably the most familiar mental process that we know yet its workings remain mysterious consciousness is not directly
q show the error detection and editing functionerror detection and editing function consciousness helps us avoid acting solely through habit it