Choose the correct answer from the options given below:

Which of the following statements are correct?

A. Emotionally arousing stimuli have also been seen to lead to amnesia.
B. Some cognitive processing must occur before an individual can experience an emotional response to an event.
C. Repression is a form of motivated forgetting.
D. Functional Magnetic Resonance Imaging (fMRI) and Positron Emission Tomography (PET) are invasive scanning techniques of studying the brain functioning.
E. Theories of emotions have not changed much over the years.

Correct option is A

Explanation:

1. A. Emotionally arousing stimuli leading to amnesia:
   Correct. Extreme emotional arousal, such as trauma, has been linked to amnesia, particularly dissociative amnesia.
2. B. Cognitive processing before experiencing emotions:
   Correct. This aligns with theories like Schachter-Singer's cognitive arousal theory, where interpretation of stimuli and arousal determines emotional experience.
3. C. Repression Is a form of motivated forgetting: Freud extensively worked on repression 
   
   

​Additional Information 

• PET (Positron Emission Tomography)
  • A brain imaging technique that measures metabolic activity by detecting radioactive tracers injected into the bloodstream.
  • Function: Shows how tissues and organs function, commonly used to study glucose metabolism in the brain.
• How PET Works:
  • A radioactive tracer (e.g., fluorodeoxyglucose – FDG) is injected into the body.
  • Active brain areas consume more glucose, emitting positrons.
  • A PET scanner detects these emissions and creates an image of brain activity
• fMRI (Functional Magnetic Resonance Imaging)
  • A non-invasive imaging technique that measures changes in blood oxygen levels to detect brain activity.
  • Function: Identifies which brain regions are active during tasks, such as thinking, moving, or feeling emotions.
• How fMRI Works:
  • When neurons are active, they require more oxygen.
  • fMRI detects changes in blood oxygenation (BOLD signal), highlighting active brain areas.
  • Generates high-resolution images of brain function.