Evaluate one theory of how emotion may affect one cognitive process. (22)

Evaluate (22) – An appraisal by weighing up the strengths and limitations.



Theory of Flashbulb memory (Theorist: Brown and Kulik)

Essential components of Flashbulb Memory
Tali Sharot – 9/11 Flashbulb Memory (Flashbulb Memory)
[A] Investigate upon the existence of Flashbulb Memory.
[P]
  • 24 witnesses of the 9/11 incident were found from different location of Manhattan as subjects.
  • Subjects were placed in an fMRI machine.
  • Subjects were asked to recall the event of 9/11.
  • Subjects were also asked to recall their summer holiday (for control purpose).
[F]
  • People closer to where the event happened (where the World Trade Center was) had a more in-depth recall of the event.
  • When compared to subject’s summer holiday, the level of detail given for 9/11 incident was higher.
  • Parahippocampal Gyrus (Para-hippo-campal Gy-rus – responsible for LTM retrieval) was relatively inactive when recalling memories from 9/11 when compared to recalling events from summer holiday.
  • Amygdala (responsible for processing memory of emotional reaction) was relatively more active when recalling memories from 9/11.
[C]
  • Different part of the brain was used for different Flashbulb Memory retrieval and general LTM retrieval.
  • Supports Flashbulb Memory as a different type of memory than LTM.
  • Collectivist culture – tend to suppress emotion, memory encoded at a shallow level.
  • Individualist culture – encouraged to express emotion, memory encoded at a deeper level (Levels of processing theory – Craik & Lorkhart).
[E]
  • Observing the concentration of deoxygenated haemoglobin is an accurate measure for brain activity.
  • Ecologically valid. Questions were asked about real life situations.
  • May argue that it is still laboratory condition, overtly observing may cause Demand Characteristics.
  • Pressure under lab conditions may cause alteration of results.
  • Possible confirmation bias.
  • No cause-and-effect relationship can be established through the scan.
  • Relies heavily upon the interpretation of the researcher.
  • The Amygdala showing response may well be the subject’s expression of depressed emotion while recalling 9/11.
  • Ethical considerations: Privacy of the subjects may be invaded because the fMRI indicates a general representation of their thought process.


Harsch & Neisser – Challenger study (Flashbulb Memory)
[A] Evaluate the theory and the existence of Flashbulb Memory.
[P]
  • Study was done based upon the “Challenger” Space Shuttle incident.
  • 24 hours after the incident, subjects were asked about what they remembered.
  • Similar questions on their memory of the event was asked after 3 years.
  • They were also asked to rate their confidence with their accuracy of recall.
[F]
  • 3 of 44 students had perfect recall.
  • 25% had completely inaccurate memory.
  • 40% of the subjects had distorted memory.
  • Possibly influenced by post-event information.
  • Subjects were confident with the accuracy of their recall.
[C]
  • Challenges the existence of Flashbulb Memory.
  • Could just be reconstructive memory.
[E]
  • Assumed that Flashbulb Memory was created.
  • Only relied upon questionnaires to determine whether the memory was Flashbulb.
  • Only students were used, reduced its potential in generalisation.


Schmolck et al. – OJ Simpson study (Flashbulb Memory)
[A] Investigate how memory distort over time.
[P]
  • College students were asked how and where they were when they heard the verdict of the case of OJ Simpson.
  • They were then asked to recall after:
  • 3 days
  • 15 months
  • 32 months
[F]
  • 15 months – Answers were fairly close to those after 3 days.
  • 11% contained major inaccuracy.
  • 32 months – Lots of details forgotten.
  • 29% recalled accurately.
  • 40% had distortion in recall.
[C]
  • Challenges the existence of flashbulb memory.
[E]
  • Assumed that Flashbulb Memory was created.
  • Only relied upon questionnaires to determine whether the memory was Flashbulb.
  • Only students were used, reduced its potential in generalisation.

Strengths of Flashbulb Memory

Weaknesses of Flashbulb Memory