The csv file contains the following variables:
  - Filename, 
  - origin (=country of origin of speaker), 
  - target word, 
  - vowel, 
  - participant ID, 
  - plosive type (only fortis), 
  - duration of words (measured in msec.), 
  - VOT (in msec.), 
  - VOT (speech rate normalized), 
  - NHD (=neighborhood density), 
  - onset neighborhood density, 
  - minimal pair presence (0/1), 
  - English word frequency and English plosive frequency (both zscored as well).
The calculations of these variables can be found in the accompanying publication by the title: "Diffusion of phonetic updates within phonological neighborhoods".