How Word Frequency Affects Brain Responses to Spoken Words
Author Information
Author(s): Alexandrov Alexander A., Boricheva Daria O., Pulvermüller Friedemann, Shtyrov Yury
Primary Institution: Saint Petersburg State University, Saint Petersburg, Russian Federation
Hypothesis
Words with higher frequency of occurrence in a subject's language will elicit a more pronounced neural response than low-frequency words.
Conclusion
The study found that high-frequency words led to a stronger and earlier brain response compared to low-frequency words, supporting the idea that word memory traces are linked to their frequency of use.
Supporting Evidence
- High-frequency words elicited a significantly stronger MMN response than low-frequency words.
- The mean peak latency for the high-frequency word was shorter than that for the low-frequency word.
- Behavioral ratings confirmed that participants found the high-frequency word significantly more frequent than the low-frequency word.
Takeaway
When we hear words, our brain reacts faster and stronger to words we use a lot compared to words we rarely hear.
Methodology
The study used EEG to measure brain responses to high- and low-frequency words presented in a passive oddball paradigm.
Limitations
The study used a very limited stimulus set, which may affect the generalizability of the findings.
Participant Demographics
Ten healthy right-handed native Russian speakers (7 females, age range 19–22, mean age 19.3).
Statistical Information
P-Value
p<0.0000001 for frequency ratings
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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