Positive Valence Systems

Overview

Speech to Text

Facial Physiological Engine

Vocal Acoustic Engine

Neurobehavioral Construct Computer

Construct	Description
`reward_responsiveness`	Hedonic engagement with rewarding stimuli
`reward_anticipation`	Motivation toward expected reward
`reward_satiation`	Decline in reward responsiveness with consumption

Key contributors: prosodic_flatness, f0_range, intensity_mean, facial affect (happiness, engagement), assessment context (PHQ-9 item 1 anhedonia).