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CSU PSY 252: Exam 1 (Deana Davalos) Study Guide Solutions $12.49   Add to cart

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CSU PSY 252: Exam 1 (Deana Davalos) Study Guide Solutions

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CSU PSY 252: Exam 1 (Deana Davalos) Study Guide Solutions cognitive neuroscience - ANSWER-- The study of neural mechanism underlying the brain - Methods based on premise that cognitive neuroscience or mental state consists of a pattern of activity distributed over neurons Tools used in cogniti...

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  • October 30, 2024
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CSU PSY 252: Exam 1 (Deana Davalos)

Study Guide Solutions


cognitive neuroscience - ANSWER✔✔-- The study of neural mechanism underlying the brain




- Methods based on premise that cognitive neuroscience or mental state consists of a pattern of activity

distributed over neurons


Tools used in cognitive neuroscience - ANSWER✔✔-- EEG & MEG, Optical dyes, TMS, fMRI, Single unit,

Patch Clamp, Multi unit recording, light Microscopy, PET, Micro lesions, 2-Deoxyglucose


Neurophysiology - ANSWER✔✔-- Explains the workings of the nervous system


EEG (electroencephalogram) - ANSWER✔✔-- Uses surface electrodes to record the activity of underlying

brain tissue


ERP (event-related potential) - ANSWER✔✔-- Averaging across repeated stimuli allows event-related

activity to be identified




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- New applications: BCI (Brain-computer interface)




- Usually labeled by polarity and latency, P300, P3 (???)


EEG vs ERP - ANSWER✔✔-- Similar to EEG, but not related to an event (a task)


eg. making a decision, reading a word


- In ERP uV is small in relation to the EEG in relation to the EEG (about 50 uv) (???)


imaging techniques - ANSWER✔✔-- Postion Emission, PET (Positron Emission Tomography Scan,

Radioactive glucose (sugar)




- MRI: Studies brain anatomy




-fMRI (functional MRI): Studies brain function


fMRI (functional magnetic resonance imaging) - ANSWER✔✔-• Studies:




- Regional changes in blood flow

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FIRST PUBLISH OCTOBER 2024




- O2 concentration




- Spatial resolution and temporal resolution




WATCH: https://youtu.be/8jc8URRxPIg (explain function)


Lesion Studies (old) - ANSWER✔✔--deficits and damage




-experimental vs. "experiments of nature"


TMS (Transcranial Magnetic Stimulation) (new lesion studies) - ANSWER✔✔-- Temp "lesion" (disruption)




- Vary Magnetic Field:


•electrical current w/ in any volume where it passes


• Hyper or Hypo




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