Post-encoding positive emotion impairs associative memory for English vocabulary

Area of Science:

• Cognitive Psychology
• Educational Psychology
• Neuroscience

Background:

• Emotion-induced memory impairment is documented during encoding.
• The impact of post-encoding positive emotion on associative memory is less understood.
• Associative memory is crucial for complex learning, including vocabulary acquisition.

Purpose of the Study:

• To investigate the effect of post-encoding positive emotion on associative memory.
• To examine this effect in different age groups (high school and primary school students).
• To explore implications for foreign language vocabulary learning.

Main Methods:

• Two experiments were conducted using English vocabulary learning tasks.
• Participants memorized word definitions or word-picture associations.
• Following encoding, participants viewed neutral or positive (comic) videos before a delayed memory test.

Main Results:

• Post-encoding positive emotion significantly impaired associative memory recall in both experiments.
• This impairing effect was observed across different age groups and learning materials.
• Memory for Chinese definitions and English word-picture associations was negatively affected.

Conclusions:

• Post-encoding positive emotion can impair associative memory, contrary to potential assumptions of mood benefits.
• Findings suggest that emotional regulation strategies may be important during learning.
• The results have significant implications for optimizing foreign language vocabulary acquisition methods.