9. HUMAN INTERACTIONS; THE EMERGENCE OF LANGUAGE
9.2 Priming the first communicative skills.
9.2.1 The non-verbal part of a spoken message.
9.3 No language without chemistry.
9.4 The concentrical organisation of the VAD
9.5 Development = growth + maturation + learning.
9.6 Successive phases in a developing function; a potential is actualised.
9.7 The early environment of the developing brain.
9.8 Performance levels in oral expression.
9.10 Zones of speech-language development.
9.11 Underdeveloped zones: empty lots and ramshackle houses.