The paper introduces mathematical encoding for subjective experience and meaning in natural cognition. The code is based on a quantum-theoretic qubit structure supplementing classical bit with circular dimension, functioning as a process-causal template for representation of contexts relative to the basis decision. The qubit state space is demarcated in categories of emotional experience of animals and humans. Features of the resulting spherical map align with major theoreties in cognitive and emotion science, modeling of natural language, and semiotics, suggesting several generalizations (...) and improvements. The developed model bridges psychological, quantum-theoretic, and semiotic perspectives, allowing for an integrative account of subjectivity, agency, and meaning in living Nature.Graphical abstract. (shrink)

One common denominator between biosemiotics and quantum physics is the participation of agents detecting their surroundings. In biosemiotics, any biological agents as the internal observers including the molecular and cellular ones are involved in detecting their surroundings. Likewise, the physicist as the external observer is also involved in detecting what should be all about the physical world with use of a wide variety of sophisticated measurement apparatuses. On the other hand, the difference between the two is in the nature of (...) the agents of detection involved there. One obvious difference is that although the physicist can report the results of measurement with use of the symbolic language, the biological beings take the indexical act of measurement to simply be a matter of experiencing. The internal observers are phenomenological in constructing something durable as participating in the construction of the phenomenon. In a similar vein, the external observer is also phenomenological in getting into interpreting the constructed durable class property of an object with use of the symbolic language. In particular, the potential use of phenomenology is not limited only to the phenomenologist as the external observer. A possible integration of both the internal and external observers may be sought within quantum phenomenology allowing for the external observer to descriptively make access to the durable objects the internal observers could eventually have constructed. The internal observers are ubiquitous in the environment that functions as the absorbers of whatever quantum particles available there. (shrink)