P-curving the fusiform face area: Meta-analyses support the expertise hypothesis

Edwin J Burns, Taylor Arnold, Cindy M Bukach

Research output: Contribution to journalReview article

4 Citations (Scopus)
10 Downloads (Pure)

Abstract

Psychologists have debated whether the right fusiform face area's (FFA) responses are domain specific to faces, or domain general for certain object categories that we have visual expertise with. This latter domain general expertise account has been criticised for basing its assumptions upon studies that suffer from small participant numbers, small effects, and statistically significant p-values that are close to .05. An additional criticism is that these findings are difficult to replicate. A modern reader familiar with the replication crisis may therefore question whether the FFA's expertise effect is real. The p-curve is a relatively new form of meta-analysis that enables researchers to identify whether there is evidential value for any given effect in the literature. We put the literature to the test by running p-curve analyses on all published expertise studies. Contrary to aforementioned criticisms, our meta-analyses confirm the right FFA's expertise effect is based upon evidential value. We therefore review the broader literature to address additional criticisms of the expertise account and propose ways to improve replicability.

Original languageEnglish
Pages (from-to)209-221
Number of pages13
JournalNeuroscience and Biobehavioral Reviews
Volume104
Early online date2 Jul 2019
DOIs
Publication statusPublished - 1 Sep 2019

Keywords

  • Domain general
  • Domain specific
  • Expertise
  • FFA
  • Meta-analysis
  • P-curve

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