Embodiments described herein include a method running on a processor for decoding user response to marketing media, the method comprising: defining calibration stimuli that produce at least one expected response; defining data features for assessing one or more states of a plurality of users using at least one of the calibration stimuli and the at least one expected response; identifying a set of data features based on a first correlation between the set of data features and the at least one expected response; and iteratively reducing the set of data features based upon an amount of variation explained by the reduced set of data features and a second correlation between the reduced set of data features and the at least one expected response.
Spatially Constrained Biosensory Measurements Used to Decode Specific Physiological States and User Responses Induced by Marketing Media and Interactive Experiences