2Neuroscience - Deciding

32 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
3 Types of Decision Making
1. Perceptual
2. Social
3. Value-based
3 Conditions of Value-Based Decision Making
  1. ≥ 2 choices are in some sense known
  2. Expectations can be formed about the potential outcomes of each choice
  3. The values of the potential outcomes can be assessed at some level
Conscious or Unconscious
Neuroeconomics
Aka "Decision Neuroscience"

How can economics help us understand the brain?

How can the brain help us understand economics?
Risk Aversion
The tendency to avoid risks, even if the overall expected value is lower
People tend to choose higher value option but...
...conceptions of what is higher value differs
Framing
The way a decision is framed (i.e. loss vs gain) changes people's preferences towards it
How do we make difficult decisions?
1. Balance short term desires and long term goals
2. Compute the value of each option and choose higher
Mesolimbic Pathway
VTA -> Striatum, Amygdala, Hippocampus
Mesocortical Pathway
VTA -> Cortex (particularly VMPFC)
How is value represented neuronally?
Answer 10
DA release from the Ventral Tegmental Area (VTA) and Substantia Nigra (SN )
Striatum (part of what, includes what)
Answer 11
-Part of Basal Ganglia

-Made of Caudate, Putamen, NAc
Dorsal Striatum Function
Acting (selecting the best response)
Ventral Striatum Function
Encodes pure valuation signal (especially NAcc)
VMPFC Function
Integrates info from many brain regions
-dopaminergic input from VTA/SN
-exec control info from DLPFC

Important for encoding value, but more complex
Rat Brain Stimulation value studies show...
...that value scales with the amount/rate of stimulation. Increase in Hz -> increase in bar pressing.