Biological Foundations

• Myelinization as the cause of transmission speed and efficiency
• Brain volume (total, white & grey matter volume, cortical thickness, corpus callosum, specific brain areas)
  • Gignac, G. E., & Bates, T. C. (2017). Brain volume and intelligence: The moderating role of intelligence measurement quality. Intelligence, 64, 18-29. doi:10.1016/j.intell.2017.06.004
• White matter integrity (Penke)
• Post synaptic density (Hill)
• Fronto-Parietal Integration Theory (Jung & Haier)
• Electrical (magnetic) activity on the scull
  • Power in different frequency bands
  • Event-related potentials as markers of speed and information processing (P300, MMN, N100 etc)

1. Link to infant papers Jay Gied

Methodological Sidebar: Steven Jay Gould and recent PLoS paper on what really happened with brain measurments

References