Tailoring the stimuli to individual participants would influence the relative contribution of perceptual and affective processing in the paradigm. Such perceptually equivalent stimuli could then be used in another experimental paradigm to measure the effect of affect on performance. Measures of sensitivity to different expressions could be used to identify stimuli from different affective categories (e.g., happy and fear) that individual participants find equally challenging to discriminate (perceptually equivalent). Dissociating the effect of perceptual processing from affective processing in facial expression recognition might be achieved by using stimuli that are tailored to individual participants. Application of the approach for use with clinical populations, as well as understanding the relative contribution of perceptual processing and affective processing in facial expression recognition, is discussed.įacial emotion recognition relies on both perceptual processing and processing of affect from nonsensory systems, the relative contribution of which remains unclear (see Calvo & Nummenmaa, 2016, for a review). Increased sensitivity to happy compared with fear expressions was affected at smaller image sizes for some participants. Sensitivity is equivalent when measured on two different testing sessions, and greater sensitivity to happy expressions is maintained with short stimulus durations and stimuli generated using different morphing software. This tells us that individual participants are more sensitive to happy compared with fearful expressions. Individuals could reliably discriminate happy expressions diluted with a greater proportion of the neutral expression compared with that required for discrimination of fearful expressions. Sensitivity is defined as measurement of the proportion of neutral expression in a stimulus required for participants to discriminate the emotional expression on 75% of presentations. The expression was diluted to different degrees by combining it in different proportions with the neutral expression using morphing software. Sensitivity is measured by asking participants to discriminate between an emotional facial expression and a neutral expression of the same face.
It shows that individual participants are more sensitive to happy than to fearful expressions and that the differences are statistically significant using the model-comparison approach.
NORRKROSS MORPHX UPGRADE
Fiwi version 2.0.8 is a free upgrade for owners of Fiwi 2.0 to 2.0.7.This paper describes a method to measure the sensitivity of an individual to different facial expressions. Toggle "using other applications besides the Finder" on/off via Fiwi set up and now also by starting up Fiwi holding the option key down. Changesįiwi 2.0.8 is reommended to all users of Fiwi 2 and later. Fiwi version 2.0.8 is a free upgrade for owners of Fiwi 2.0 to 2.0.7.
NORRKROSS MORPHX MAC
It takes some getting used to although when you have, you can easily see that it could speed up your work flow, particularly if you're transferring multiple files between the same folders.įiwi is an interesting alternative to standard file management on a Mac although whether it will be useful to you depends on how regularly you transfer files.įiwi 2.0.8 is reommended to all users of Fiwi 2 and later. Whether Fiwi is more useful that just transferring files simply by dragging and dropping or using the "Send to." option is debatable.
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