The basic concept of SyncSense is that since human brain activity is associated with audiovisual perception and attention, the refinement of such stimuli in a short for video results in more neural synchrony and therefore higher perception, engagement and attention.
This is all born out in a 2007 study from Neuroimage:
"Coherent
perception of objects in our environment often requires perceptual
integration of auditory and visual information. Recent behavioral data
suggest that audiovisual integration depends on attention. The current
study investigated the neural basis of audiovisual integration using
3-Tesla functional magnetic resonance imaging (fMRI) in 12 healthy
volunteers during attention to auditory or visual features, or
audiovisual feature combinations of abstract stimuli (simultaneous
harmonic sounds and colored circles).
Audiovisual attention was found to
modulate activity in the same frontal, temporal, parietal and occipital
cortical regions as auditory and visual attention. In addition,
attention to audiovisual feature combinations produced stronger activity
in the superior temporal cortices than attention to only auditory or
visual features. These modality-specific areas might be involved in
attention-dependent perceptual binding of synchronous auditory and
visual events into coherent audiovisual objects.
Furthermore, the
modality-specific temporal auditory and occipital visual cortical areas
showed attention-related modulations during both auditory and visual
attention tasks. This result supports the proposal that attention to
stimuli in one modality can spread to encompass synchronously presented
stimuli in another modality."