language type

example

function

instinctive gestural language

instinctive facial expressions

for very basic gestural communication and infant’s gestural communication

symbol domination controllable gestural language

human sign language

for basic gestural attention getter and complicate gestural communication

icon domination controllable gestural language

chimpanzee’s gestural language

for basic gestural intention signal and simple gestural communication

instinctive vocal language

cry, scream, and laughter

for very basic vocal communication and infant’s vocal communication

symbol domination controllable speech

human speech and songbird’s territorial song

for basic vocal attention getter and complicate vocal communication

icon domination controllable song

human song and songbird’s courtship song

for intentional vocal communication