To achieve those goals, we work with different sensors that pick up the signals especially from the eyes and the brain.
By looking into people’s eyes, we can learn about cognitive processes or attention. For example, pupils become larger the more effort a person invests in listening. We refer to this as listening effort.
Furthermore, eye-fixations and movement, i.e. where the eyes point, reveal the focus of your attention when communicating. Thus, eye-tracking is of high relevance to us.
The listener’s attention can also be measured by picking up brain signals using Electroencephalography (EEG). By measuring those signals, the person you are attending to in a conversation can be identified. That sounds like magic, but it is possible.
Both the listener’s attention and the eye-movements can also be picked up by EEG electrodes in the ear canal; so-called EarEEG.
If you wish to learn more about Cognitive Hearing Science, please watch the video below.