Techniques to Study the Brain

​ (a)   use ​ (b)   fields and ​ (c)   waves to map the activity of ​ (d)   protons. These protons are in the ​ (e)   molecules present in brain tissue.​

• magnetic
• radio
• hydrogen
• water
• MRIs
• fMRIs
• oxygen
• blood

​ (a)   use ​ (b)   fields and measure changes in ​ (c)   flow as a measurement of brain activity. If a specific part of the brain is active, it requires more ​ (d)   , and thus flow to that part of the brain increases. This is known as the ​ (e)   signal

• magnetic
• MRIs
• fMRIs
• oxygen
• blood
• BOLD
• hydrogen
• water
• VBM
• radio

MRI scans are ​ (a)   . Two possible ways to analyse these scans are:
- ​ (b)   which can be used to measure the ​ (c)   of grey matter
- ​ (d)   which can be used to calculate the ​ (e)   of certain brain structures.

• structural
• VBM
• density
• pixel counting
• area
• functional
• BOLD
• artifacts
• activity

fMRI scans are ​ (a)   . A ​ (b)   is created that indicates ​ (c)   activity related to cognitions and ​ (d)   .

• structural
• functional
• artifacts
• film
• neural
• behaviours
• biology
• 2D or 3D image

MRIs give us

• a correlation between brain structures and environment

• a cause and effect relationship between brain structures and environment

Evaluations for scanning techniques

Groups:

(a) MRI

,

(b) fMRI

,

(c) both

,

(d) neither

• loud and claustrophobic

• do not map activity in brain

• show activity over time

• inexpensive

• small sample size

• non-invasive

• risk of overinterpretation

• invasive

Which research shows which scanning technique?

Groups:

(a) MRI

,

(b) fMRI

• Draganski

• Sharot

• Harris & Fiske

• Antonova

• Corkin

• Maguire

Outline how an MRI scan works in about 4-6 sentences

What do fMRIs measure?

• Electrical activity in the brain

• Blood flow changes in the brain

• Density changes in areas of the brain

• Chemical activity in the brain