sharot et al (2007) flashbulb memory

The Biological Basis of Flashbulb Memory: An Evaluation of Sharot et al. (2007)

Introduction

• Definition: Flashbulb memory refers to vivid, highly detailed memories of emotionally significant events.

• Context: The biological basis of these memories is linked to amygdala activation, making this study relevant to:

• Biological approach: Techniques for studying the brain & localization of function.

• Cognitive approach: How emotion affects memory.

• Outline: This essay evaluates Sharot et al. (2007) using TEACUP, considering its strengths, limitations, and implications.

Main Body

Theory

• Sharot et al. (2007) investigated the amygdala’s role in flashbulb memory formation.

• Emotional arousal strengthens memory encoding and retrieval.

• Amygdala activation is linked to emotional memory processing.

• Supports theories that emotional intensity enhances memory retention.

Evidence

• Aim: To determine whether biological factors influence flashbulb memories.

• Method:

• Quasi-experiment conducted three years after 9/11.

• 24 participants who were in New York City on that day.

• fMRI scanning while recalling summer holiday memories vs. 9/11 memories.

• Findings:

• Only half of the participants showed flashbulb memories (detailed, vivid, high confidence).

• Those closer to the World Trade Center had stronger amygdala activation when recalling 9/11.

• Those farther away showed equal amygdala response to both summer and 9/11 memories.

• Suggests proximity to trauma enhances emotional memory processing.

Application

• Supports flashbulb memory theory → Emotional intensity strengthens memory.

• Demonstrates localization of function → Amygdala is key in emotional memory.

• fMRI as a tool → Shows how neuroimaging techniques help study memory and emotion.

Criticism

• Correlational → Cannot establish cause-and-effect between amygdala activation and flashbulb memory.

• Low ecological validity → Artificial fMRI setting may not reflect real-world memory recall.

• Small & culturally biased sample → Focused only on New Yorkers.

• Individualistic cultures (e.g., USA) may form flashbulb memories differently than collectivistic cultures.

• Limited explanation → Does not account for why people develop flashbulb memories from TV exposure.

Unanswered Questions

• Would similar amygdala activation occur in other cultures?

• Do positive emotional events create flashbulb memories too?

• How does media exposure affect memory formation?

Practical Use

• Trauma research & PTSD treatment → Helps explain distressing memory formation.

• Supports neuroimaging techniques as valuable tools in psychology.

Counterarguments

• Flashbulb memories may not be more accurate than regular memories → They feel vivid but can be distorted over time.

• Self-reported data introduces bias → Participants may overestimate accuracy of their memories.

Conclusion

• Sharot et al. (2007) supports biological explanations of flashbulb memories through amygdala activation.

• Strengths: Demonstrates localization of function and effectiveness of neuroimaging techniques.

• Limitations: Correlational, lacks generalizability, and raises unanswered questions.

• Significance: Helps understand memory, trauma, and the interaction between emotion and cognition.