AO1

• What is spatial resolution?

  Level of accuracy in identifying the exact location of a brain structure or brain activity in space (where activity happened)
• What is temporal resolution?

  Level of accuracy in identifying the exact location of a brain activity in time (when activity happens)
• What does fMRI stand for?

  Functional magnetic resonance imaging
• How does fMRI work?

  Uses magnetic field and radio waves to detect changes in both blood oxygenation and flow that occur as a result of brain activity in specific parts of the brain
• What happens when a brain area is more active?

  Consumes more oxygen. To meet this increased demand, blood flow is directed to the active area
• What kind of images do fMRIs produce?

  3D showing which parts of the brain are involved in a particular mental process
• fMRI has important implications on what?


  Understanding of localisation of function
• What does EEG do?


  Measures electrical activity within the brain via electrodes that are fixed to an individual‘s scalp using a skull cap
• What does the scan recording represent? (EEG)

  The brainwave patterns that are generated from the actions of thousands of neurons, providing an overall account of brain activity
• What is EEG often used as ?

  A diagnostic tool as it can detect arrhythmic patterns of activity
• What may arrhythmic patterns indicate?

  Neurological abnormalities such as epilepsy, tumours or some sleep disorder s
• What does ERP stand for?

  Event related potential
• What are ERPs?

  Specific brainwaves derived from EEG data
• How is EEG data isolated to create ERGs?

  Statistical averaging to remove unrelated brain activity. They represent neural responses to specific sensory, cognitive or motor events
• What are ERPs used for?

  Study cognitive processes like attention and perception, revealing various forms of brain activity associated with these functions
• What are postmortem examinations?

  Analysis of a person’s brain following their death