276 – Emotional State (Affect) Recognition via Physiological Measures & Processing
Home>Application Notes>276 – Emotional State (Affect) Recognition via Physiological Measures & Processing
This application note is concerned with the implementation details of determining emotional state (“affect”) on the basis of three physiological measures—Electrodermal Activity (EDA, a.k.a GSR), Zygomaticus (EMG), and Corrugator (EMG)s—as suggested in prevailing theories of emotion:
The James-Lange Theory of Emotion: Emotions occur as a result of physiological reactions to stimuli. Emotional state depends on how the subject interprets their own reaction to any specific event.
The Cannon-Bard Theory of Emotion: Physiological reaction and emotional state occur simultaneously. Emotions occur when the thalamus activates the CNS in response to stimuli, which results in physiological reaction.
Schachter-Singer Theory of Emotion: In response to stimuli, a physiological reaction occurs. To experience the reaction and categorize it as a specific emotion, the subject is required to identify the reason for their specific reaction.
Affective states arise from the behavior of two independent neurophysiological systems, the activation (arousal) and valence systems. Affective states are a function of these two systems. The circumplex model is two dimensional, with activation and valence defined as orthogonal (perpendicular) axes.
The activation axis, plotted vertically, ranges from deactivation (zero arousal) to activation (high arousal).
The valence axis, plotted horizontally, ranges from negative to positive.
The NIBP-A-MRI CareTaker4 system measures relative central arterial pressure to provide continuous, noninvasive “Beat-by-Beat” Blood Pressure from at rest humans (≥ 15 kg) in the MRI; measures include Diastolic, Systolic, Mean Arterial Pressure.; heart rate (HR) data is available. The system uses the scientific method of Pulse Decomposition Analysis (“PDA”). Key features Continuous, noninvasive monitoring […]
BIOPAC’s just released Introductory ECG Guide addresses fundamental to advanced concerns to optimize electrocardiography data recording and analysis. Topics include: ECG Complex; Electrical and Mechanical Sequence of a Heartbeat; Systole and Diastole; Configurations for Lead I, Lead II, Lead III, 6-lead ECG, 12-lead ECG, precordial leads; Ventricular Late Potentials (VLPs); ECG Measurement Tools; Automated Analysis Routines […]
Recent Studies using BIOPACs MP-Series (MP160, MP150) data recorders, ECG Amplifiers, and BioNomadix Wireless recorders: Singing style to infants Mothers around the world sing to infants, presumably to regulate their mood and arousal. Lullabies and playsongs differ stylistically and have distinctive goals. Mothers sing lullabies to soothe and calm infants, and playsongs to engage and […]