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PSYC2
brain, ect..
| Question | Answer |
|---|---|
| what is ethics | that our research is always evolving. |
| APA stands for? | American Psycholical Association |
| Rights of Research Participants: | informed consent. vulnerable groups. |
| condifential | same place cannot put your name |
| annonymous | no name on survey just a number. |
| aggregate data | avg. score not identified. have right to withdream without penalty |
| deception | do if your told. |
| what color is the brain? what size? | whiteish color. fits in plam of your hand. |
| lobes increase what? | surface area of brain. |
| brain is the what? | most incased organ in body |
| neuropsychology | 90's decade of brain |
| complexity | interprets info. quickly |
| integration | choke on something |
| plasticity | ablitiy for modification and change |
| electrochemical transmission | how we send messages |
| CNS | brain and spinal cord info. processing center. sends messages in and otu |
| PNS | autonomic and somatic |
| autonomic | internal organs: you have little control over |
| somatic: | body sends impules to your senses and skeletal muscles. voulnatrt control over. |
| autonomic has two parts: | sypatheic and parasympathetic |
| sympatheic | arouses the body: if a bear jumps out you run away. heart beats faster |
| parasympathetic | calms after arousal |
| CNS is at what part of body and is incased in? | center of body and incased in bone |
| sensory nerves (afferent) | sends impused to the brain |
| motor nerves (efferent) | sents info. out to muscles. exit brain |
| interneurons(neural) | activity within the brain |
| neurons are what? | basic unit of N.S. the bits and threads. specialized for processing information |
| how many neurons are there? | 100 billion |
| glial cells "jello" helps 3 things: | 1. helps support2. helps communicate3. nursises neurons |
| dendrites | gets message |
| axon | sends message and resends another message |
| nerual impulse | one end of neuron to other as a brief impules or wave of electricity |
| action potential | brief wave of + electrical charge that flows down the axon during transmission |
| can there be a half of a transmission? | NO. all or none |
| refreactory peroid | one neuron fies until it resets itself; resting peroid; reset. |
| what is chemical called | neurotransmitters |
| chem. is released from vesicles in the what> | terminal buttons on axons |
| neurotransmitters flow into the what | synaptic cleft of gap |
| nt connect to recptor cites on the? | dendrites |
| how many nt? | over 50 |
| each nt has specific _____ and _____ | function and receptor cite |
| Acetylcholine (ACH) | stimulates the firing of neurons and involved in the action of mucles, learning and memory. blocking results in paralysis. |
| Gamma Aminobutyric Acid (GABA) | inhibits the firing of neurons. helps control preciseness of the signal being carried from one neuron to other. anxiety. |
| serotonin | inhibits. regulates sleep, mood, attention, and learning. low levels= depression |
| norepinephrin | usually inhibits firing of neurons in CNS but excites heart muscles, intestines, and urogential tract. controls alertness. |
| dopamine | inhibits. controls voluntary movements and affects sleep. mood attention and learning. |
| endorphins | natural opiates simulate firing.. they shield body from pain and increase feelings or pleasure. |
| most drugs that infulence behavior do it by interfering with how neurotransmitters work; others mimic or increase the effcts of nt | |
| alochol inhibits what? resulting in | serotoinin. depression |
| morphine mimics? | endorphins. pleasurability |
| what are neural networks | cluters of neurons that are interconnected to process information |
| nerual netwroks ditributes what? | attention, memory and thinking across wide range of connected nerurons |
| what determines how well you remember something | the strenth of connection |
| lowest part of the brain | hind brain |
| hind brain inclues | medulla, pons, cerebellum |
| medulla controls | breathing, reflexes, posture |
| cerebellum | motor coord. |
| pons controls | involved in sleep and wakefullness |
| nerve-fibers travel thro. midbrain connecting____ and ____ portions of brain | higher and lower |
| reticular formation is what | sterotypical behaviors like walking, sleeping, turning to locate sound. |
| brainstem connects what | spinal cord with brain. encases reticular information. regul. breathing, heartreate, BP |
| highest level of brain | forebrain |
| limbic system | memory and emtoion |
| thalamus | a relay station to sort, input, and send messages |
| basal ganglia | controls cord. voluntary movements |
| hypothalamus | regulates eating, drinking, sex |
| cerebral cortex | thinking and planning |
| cerebral cortext is what % of brain | 80 |
| largest part of brain | cerebral cortext |
| corpus callosum | the havles are connect by thick band on tissue/neurons. two hemispheres of cc. |
| frontal lobe | judgement, intelligence, personality |
| parietal | motor control, physical body movements |
| occipital | vision |
| temporal | auditory, lang. processing, memory |
| sensory cortext processes info about | body sensation |
| motor cortex pro. info about | motor movemnts |
| sensation | recieving stimulus enegry from external world |
| receptor cells register a what | stiumus |
| stimulus enegry is converted into an electrochemical impule called | trasduction |
| afferent neurons trasmit info from ____ to _____ | organ to brain |
| perception | oranizing and interpreting info from the sensory organs to give it meaning |
| attention | selective program- you can choose what info you ignore and pay attention to |
| absolute threshold | minimum stimulation that is detectable 50% of the time |
| Difference Threshold | we are tuned to detect when stimuli changes. |
| JND= just noticible difference | 50% detectable |
| Webers law states | 2 simuli msut differ by a constant proportion for different to be noticiable |
Created by:
Moll289
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