PSYC 230 Chanon Final Exam Questions With Correct Answers.

PSYC 230 Chanon Final Exam Questions
With Correct Answers
soma |- |CORRECT |ANSWER✔✔-cell |body



dendrites |- |CORRECT |ANSWER✔✔-part |of |the |neuron |that |receives |signals |from |other |


neurons



axon |- |CORRECT |ANSWER✔✔-part |of |the |neuron |that |carries |the |signal |from |the |soma |to |the |
synapse



steps |in |an |action |potential |- |CORRECT |ANSWER✔✔-a. |Threshold |is |reached |and |AP |fired |-- |
cell |depolarizes |and |sodium |channels |open |-- |sodium |rushes |into |cell |and |triggers |potassium |
channels |to |open |-- |sodium |channels |become |refractory |-- |potassium |leaving |cell |-- |potassium |
channels |close |-- |extra |potassium |outside |cell |diffuses |away



myelin |- |CORRECT |ANSWER✔✔-coats |the |axon |to |speed |up |the |signal |and |conserve |energy



all |or |none |- |CORRECT |ANSWER✔✔-signal |has |to |reach |the |threshold |in |order |to |fire, |AP |
won't |fire |if |it |doesn't |meet |the |threshold



intensity |coding |- |CORRECT |ANSWER✔✔-cell |will |fire |more |when |multiple |signals |are |


transmitted



temporal |coding |- |CORRECT |ANSWER✔✔-axons |fire |at |different |times |for |different |stimuli



specificity |coding |- |CORRECT |ANSWER✔✔-specific |neurons |respond |to |specific |stimuli

,population |coding |- |CORRECT |ANSWER✔✔-whole |population |of |neurons |are |responding, |cells |
respond |in |a |different |pattern/amount |to |different |stimuli



sparse |coding |- |CORRECT |ANSWER✔✔-subset |of |neurons |in |a |population |fire |in |a |different |
pattern |in |response |to |stimuli



early |1800s |theory |- |CORRECT |ANSWER✔✔-the |mind |cannot |study |itself



Donders |- |CORRECT |ANSWER✔✔-reaction |time |of |decision |making, |first |cognitive |psychology |
experiment



early |1900s |- |CORRECT |ANSWER✔✔-behaviorism, |watson |and |skinner



Neurospychology |- |CORRECT |ANSWER✔✔-studies |cognitive |function |based |on |brain |damage



interneurons |- |CORRECT |ANSWER✔✔-neurons |that |transmit |impulses |between |other |neurons



single |cell |recording |- |CORRECT |ANSWER✔✔-records |where |receptor |field |of |a |cell |is |for |a |
preferred |stimulus |by |recording |firing |rate |of |a |cell |with |microelectrodes



single |cell |recording |pros |- |CORRECT |ANSWER✔✔-higher |spatial |resolution |and |precise |timing



single |cell |recording |cons |- |CORRECT |ANSWER✔✔-hard |to |pin |point |specific |cells, |invasive



ERP |- |CORRECT |ANSWER✔✔-event |related |potential, |neural |activity |associated |with |a |certain |
stimulus



ERP |pros |- |CORRECT |ANSWER✔✔-precise |timing, |noninvasive

, ERP |cons |- |CORRECT |ANSWER✔✔-poor |spatial, |requires |many |trials



EEG |- |CORRECT |ANSWER✔✔-records |general |brain |acitivity



difference |between |EEG |and |ERP |- |CORRECT |ANSWER✔✔-one |is |all |the |brain |activity, |one |is |
sections |with |the |"noise" |cut |out



MRI |- |CORRECT |ANSWER✔✔-uses |magnetic |properties |of |hydrogen |atoms |to |look |at |structure
|of |the |brain




MRI |cons |- |CORRECT |ANSWER✔✔-only |shows |the |structure |of |the |brain, |good |spatial |but |bad |
temporal



fMRI |- |CORRECT |ANSWER✔✔-functional |MRI, |shows |blood |flow |of |brain |for |brain |activity



Phineas |Gage |- |CORRECT |ANSWER✔✔-railroad |spike |went |through |his |head |and |lost |impulse |
control, |first |evidence |that |a |specific |part |of |the |brain |may |be |responsible |for |a |specific |
function



perceptual |process |- |CORRECT |ANSWER✔✔-environmental |stimulus |-- |stimulus |on |the |


receptors |-- |transduction |-- |processing |-- |perception |-- |recognition |-- |action



perception |- |CORRECT |ANSWER✔✔-the |experiences |resulting |from |stimulation |of |the |senses



top-down |processing |- |CORRECT |ANSWER✔✔-perception |driven |by |previous |experiences |


(cognition)