Creating illusions of knowledge: learning errors that contradict prior knowledge.

Area of Science:

• Cognitive Psychology
• Memory Studies
• Knowledge Representation

Background:

• General knowledge is often assumed to be stable.
• However, the susceptibility of established knowledge to external misinformation is not fully understood.
• The potential for incorporating errors, even when correct information is available, warrants investigation.

Purpose of the Study:

• To investigate the stability of general knowledge in the face of contradictory information.
• To determine if prior correct knowledge protects against the misinformation effect.
• To examine the conditions under which errors are incorporated into long-term memory.

Main Methods:

• Participants answered general-knowledge questions, some of which they knew.
• They then read narratives containing factual errors related to these questions.
• A subsequent test assessed their recall of the facts, including any incorporated errors.

Main Results:

• Participants reproduced factual errors from the stories, even when they initially knew the correct answer.
• This misinformation effect persisted regardless of initial knowledge or confidence level.
• Prior knowledge did not prevent the incorporation of misinformation; effects were similar for known and unknown facts.

Conclusions:

• Established knowledge is vulnerable to misinformation.
• The misinformation effect can override accurate memories, even with high confidence.
• Learners may incorporate errors into their knowledge base without recognizing the inaccuracies, highlighting a significant challenge in knowledge acquisition and retention.