computer-related activities. Neglecting work, school, or family obligations. Lying about the amount of time spent on computer activities. Risking loss of career goals, educational objectives, and personal relationships. Failing at repeated efforts to control computer use. Never getting off the computer. A cause for many of the above-mentioned effects may be that computer games do not stimulate the release of neurotransmitters responsible for feelings of satisfaction and relaxation, such as oxytocin and endorphin, in the same way that real world activities do.
" 2. Reaction to stress. Men tend to have a "fight or flight" response to stress situations while women seem to approach these situations with a "tend and befriend" strategy. Psychologist Shelley E. Taylor coined the phrase "tend and befriend" after recognizing that during times of stress women take care of themselves and their children (tending) and form strong group bonds (befriending). The reason for these different reactions to stress is rooted in hormones. The hormone oxytocin is released during stress in everyone. However, estrogen tends to enhance oxytocin resulting in calming and nurturing feelings whereas testosterone, which men produce in high levels during stress, reduces the effects of oxytocin. 3. Language. Two sections of the brain responsible for language were found to be larger in women than in men, indicating one reason that women typically excel in language-based subjects and in language- associated thinking
ja mis vere vahendusel reguleerivad metaboolseid protsesse ja füsioloogilisi funktsioone. Türoksiin, kortikosteroon Hormonoidid e koehormoonid e lokaalsed hormoonid - keemilised ained, mida toodavad mitmed kudede spetsialiseerunud rakud ja millel on regulatoorne mõju metaboolsetele protsessidele. Histamiin, prostaglandiinid Neurohormoonid - hormoonid, mis produtseeritakse spetsiaalsete närvirakkude poolt. Oxytocin Kuidas tekib membraanipotentsiaal? 9 Ioonpumbad ja -kanalid tekitavad ioone sisse-välja pumbates potentsiaalierinevuse membraani kummagi poole vahel, mis on üldjuhul membraanist seespool negatiivne, eukarüootides -40 mV kuni -80 mV. Puhkeseisundis on raku kaaliumkanalid avatud ning K +, mille konts rakust väljas on 30-40x seesmisest suurem, liigub raku sisse, kuni on saavutatud raku K + tasakaalupotentsiaal vastavalt Nernsti seadusele
memory of the maze. Major depressive disorder is an affective disorder that is related to low levels of neurotransmitter serotonin in the brain. People with depression are often treated with SSRI-s, that block serotonin reuptake when it is in the synapse, causing it to act for a longer time than normal and increasing the available serotonin that is needed for mood regulation. Using one or more examples, explain functions of two hormones in human behavior. Oxytocin is a hormone that is produced by the hypothalamus after being stimulated by the pituitary gland. It is released with touches and hugs. Oxytocin is associated with bonding between a mother and a child and as well as between lovers. If oxytocin is given to healthy individuals, it seems that their brain circuits involved in fear are affected and there is an increase in trust and generosity. The production of melatonin by the pineal gland is stimulated by darkness and inhibited by light
kliinilised andmed. 125 ravimi toimeaine rühm ravimvorm näidustus täiskasvanu annus lapse annus Vastunäidustus märkus nimetus Oxytocin oksütotsiin sünteetiline süstelahus Sünnitegevuse Sünnitusjärgse ei ole näidustatud Kiire veenisisene hormoon induktsioon või verejooksu kasutamiseks süstimine võib stimulatsioon
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