Describe brain function during REM sleep.
What will be an ideal response?
During REM sleep, activity increased in the pons (which triggers the onset of REM sleep) and the limbic system (which is important for emotional responses). Activity decreased in the primary visual cortex, the motor cortex, and the dorsolateral prefrontal cortex but increased in parts of the parietal and temporal cortex. REM sleep is associated with a distinctive pattern of high-amplitude electrical potentials known as PGO waves, for pons-geniculate-occipital. Waves of neural activity are detected first in the pons, shortly afterward in the lateral geniculate nucleus of the thalamus, and then in the occipital cortex.REM sleep apparently depends on a relationship between the neurotransmitters serotonin and acetylcholine. Injections of the drug carbachol, which stimulates acetylcholine synapses, quickly move a sleeper into REM sleep. Note that acetylcholine is important for both wakefulness and REM sleep, states of brain arousal. Serotonin and norepinephrine interrupt REM sleep.
You might also like to view...
Experimental methods, also known as ___________ analysis, or ___________ analysis
Fill in the blank(s) with correct word
Which of the following is a benefit of developing competency models?
a. A competency model will describe the specific tasks that are performed on a job. b. A competency model will focus on the technical skills necessary to perform a job. c. A competency model can often be used for multiple different jobs within an organization. d. A competency model is most useful for developing high stakes selection programs for police and firefighters.
Which parenting style is the most supportive of a child's academic performance and motivation?
A. authoritative B. authoritarian C. permissive D. uninvolved
In defining a problem, psychologists suggest using which of the following approaches to reduce the likelihood of failure?
A. Turning intermediate goals into larger goals B. Breaking down large goals into intermediate goals C. Turning short-term goals into long-term goals D. Combining multiple, ill-defined goals