biopsy sleep chap 6

• electroencephalogram is the recording of the electruical activity if the brain
• electrodes is the small electrical brainwaves produced by neurons
• amplifiers boost the incoming signal so it can be displayed
• filters usually included in eeg
• emg or electromyogram is measure the electrical activity of muscles
• gammawaves is higher than 30hz associated with cognitive functions, attentins and conscious perception
• beta waves asociated with wakefulness and active, alert mental activity 13-30hz
• alpha waves associated with a relax and wakeful state 8-12.99
• theta waves associated with drowsiness, early statge of sleep and deep meditative state 4-7.99hz
• delta waves associated with the deepest stage of non rem sleep 1-3.99hz
• 4 satges if sleep nrem stage 1, nrem stage 2, nrem stage 3, rem sleep
• external stimuli and dreams is the sounds or smell can influence content of dreams
• dream duration belived that drems only last for few seconds or minutes
• sleep talking and sleepwalking are more closely linked to oartial awakening during sleep
• lucid dreaming is a phenomenon in which an individual becomes aware that they are dreaming whil still in the dream state
• hypothalamus coordinate the timing of sleep
• thalamus relay station for sensory information
• basal forebrain released neurotransmitters
• amygdala linked to the emotional content of dreams
• hippocampus is the organization and integration if the dreams
• brain stem is the vivid dream
• medial prefrontal cortex or mpfc deals with decion making and planning
• medial occipital lobe is the processing visual information
• temporo parieto junction role in combining different sensation
• recuperation theory is to store memory and restore our brain
• adaptation theory hiding our overnight increased the ability to survive
• energy conservation theory is sleep serves as a mechanism to optimize energy
• circadian sleep wake cycle regulates the sleeps wake pattern over a roughly 24 hour period
• free running rhythms is the biological cycles like the sleep wake cycle
• internal desynchronization is when the body lose synchronization with each other
• jet lag occurs when your bodys circadian rhythm or internal clock needs time to adjust to a new sleep and wake cycle it can occur after travelling long distances quicklt
• shift work a work schedule that take place outside of the traditional 9 am to 5 am
• suprachiasmatic nucleus scn aa small region of the brain and act as the main circadian peace maker
• melanopsin found within the ganglion cell layer in the retina
• hypnotic drugs known as sleeping pills or sedatives, are psychoactive medications that are primarily used to induced sleep and treat insomnia
• anti hypnotic drug used to counteract excessive sleepiness or sedation
• chronobiotic or melatononin it signals the body that its time to transition from wakefulness to sleep
• sleep disorders involves problems with the quality timing and amount of sleep
• insomnia difficulty falling asleep or staying asleep
• sleep apnea chracterized by in interruptions in breathing during sleep