Dear fellows,
In ERP research, what is the difference between the late positive potential (LPP) and the late positive complex (LPC)? I see both terms in scientific papers and both seem to have the same maximum positive peak (between a 400 and 600 ms period). Can someone enlighten me please?
There is a small discussion on this issue. In this regard, I ask you to read the articles in the ATtachment. Everything will become clear to you.
Wonderful! I'll read these paper with a kin interest! Thank you so much and please accept my best regards,
GS
Dear Gasser Saleh,
There is an entire zoo of labels referring to late positive ERP components (often with a posterior scalp distribution).
To my knowledge, the label LPP is primarily used in the context of emotion-related ERP studies (e.g., https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3287021/). In contrast, the LPC (late positive component or late positive complex) that tends to have a parietal maximum has been observed in a large variety of contexts, often following - or even including - the P3b component thought to reflect working memory updating (or the P600 in language studies, which likely comprises multiple subcomponents). The LPC has been linked to memory, especially recognition and old-new effects, but has also been reported in language studies (especially when the authors found that a "P600" label would be inappropriate, e.g., because they wanted to reserve the P600 label for 'syntactic re-analyses'. (see also https://en.wikipedia.org/wiki/Late_positive_component)
Dear Professor Steinhauer,
Excellent, thank you so much for this clarification!
GS
- Badges
- Science topic
- Similar topics
- Mathematics
- Statistics
- Sampling Design
- Sample Size