Compared to the bit stream derived by dropping packets, a sub-stream can tolerate a lower temporal resolution (lower frame rate), lower spatial resolution (smaller screen), or lower quality video signal, which are named by these three modalities of scalability: temporal scalability, spatial scalability, and quality scalability.
39– 41 More problematic for the pacemaker accumulator model are local distortions in time perception or the temporal alignment between different modalities, including reversals of temporal perception.
If this is the case, it could very well be due to asymmetries in the modality-specific reliability of temporal information.
The language of \(\mathsf{HS}\) includes a set of propositional letters \(\mathcal{AP},\) the classical propositional connectives \(\lnot\) and \(\lor\) (all others, including the propositional constants \ \top\) and \ \bot,\) are assumed definable as usual), and a family of interval temporal modal operators (modalities) of the form \(\langle X\rangle,\) one for each of the Allen relations.
To say that the future is contingent in the sense of temporal modality does not imply that we have causal control over the entire future, of course.
In conclusion, our in silico predictions – which were centered on temporal modalities of gene expression - successfully predicted the cis-regulatory inputs responsible for the temporal expression profile of associated genes and suggest an important role for Nuclear Receptors in this process.
The temporal modalities of future possibility and past necessity are indistinguishable from the control operators ◊,□, prooftheoretically and as far as their relational interpretation is concerned.
Specifically, an integrated Bayesian Network is introduced for simultaneously performing information fusion of the individual modality analysis results and exploitation of temporal context, contrary to the usual practice of performing each task separately.
Our results further support the idea of distributed temporal processing and speak in favor of the existence of modality specific temporal regions in the human brain.
For further detail see Halpern and Vardi (1989), Fagin et al. (1995), as well as the more recent van Benthem and Pacuit (2006) which surveys a number of decidablity and undecidablity results concerning temporal-epistemic logics and illustrates again the crucial effect on the computational complexity which the combination of temporal and other modalities can bring about.
