Hypotheses
H1: Increased emotional intensity of anti-tobacco video content will lead to significantly higher levels of skin conductance for narrative compared to non-narrative videos.
H2: Increased emotional intensity of anti-tobacco video content will lead to significantly higher levels of corrugator facial EMG for narrative compared to non-narrative videos.
H3: Increased emotional intensity of anti-tobacco video content will interact with narrative content such that:
H3a: Cardiac deceleration observed during exposure to narrative messages will be the strongest for high intensity videos followed by moderate and low intensity videos.
H3b: Cardiac deceleration observed during exposure to non-narrative messages will be strongest for moderate …show more content…
Additionally, sympathetic nervous system activation reflects emotional arousal (Potter, Bolls, 2012). Skin conductance will be recorded through the use of a skin conductance coupler using the palmar surface placement of electrodes.
Corrugator Facial EMG Negative stimuli activate the aversive system, which can be seen in the activation of the corrugator supercilii muscle region (Potter, Bolls, 2012). Facial EMG will be recorded using a bipolar placement of 4mm surface electrodes over the muscle region. Skin will be prepped with a conductive gel and impedance level will be checked after placement of the electrodes to ensure a reliable signal.
Heart Rate
The rate at which the heart beats depends on impulses from the nervous system, which reflect a combination of arousal and resource allocation to encoding. (Potter, Bolls, 2012). Heart rate, specifically cardiac deceleration and acceleration, will be measured through the use of an electrocardiogram (ECG). This will involve placing surface electrodes on the forearms and wrist. Heart rate will be calculated from the inter-beat interval between R spikes in the QRS complex in the ECG
H1: Increased emotional intensity of anti-tobacco video content will lead to significantly higher levels of skin conductance for narrative compared to non-narrative videos.
H2: Increased emotional intensity of anti-tobacco video content will lead to significantly higher levels of corrugator facial EMG for narrative compared to non-narrative videos.
H3: Increased emotional intensity of anti-tobacco video content will interact with narrative content such that:
H3a: Cardiac deceleration observed during exposure to narrative messages will be the strongest for high intensity videos followed by moderate and low intensity videos.
H3b: Cardiac deceleration observed during exposure to non-narrative messages will be strongest for moderate …show more content…
Additionally, sympathetic nervous system activation reflects emotional arousal (Potter, Bolls, 2012). Skin conductance will be recorded through the use of a skin conductance coupler using the palmar surface placement of electrodes.
Corrugator Facial EMG Negative stimuli activate the aversive system, which can be seen in the activation of the corrugator supercilii muscle region (Potter, Bolls, 2012). Facial EMG will be recorded using a bipolar placement of 4mm surface electrodes over the muscle region. Skin will be prepped with a conductive gel and impedance level will be checked after placement of the electrodes to ensure a reliable signal.
Heart Rate
The rate at which the heart beats depends on impulses from the nervous system, which reflect a combination of arousal and resource allocation to encoding. (Potter, Bolls, 2012). Heart rate, specifically cardiac deceleration and acceleration, will be measured through the use of an electrocardiogram (ECG). This will involve placing surface electrodes on the forearms and wrist. Heart rate will be calculated from the inter-beat interval between R spikes in the QRS complex in the ECG