Psychology Wiki
ToK Category Grid
Level of complexity Class of science Level of existence Class of objects Level of computation Class of behavior
Culture Social Self-aware Human Symbolic Sociolinguistic
Mind Psychological Mental Animal Neuronal Neuropsychological
Life Biological Animate Living Genetic Biogenetic
Matter Physical Inanimate Material Quantum Physiochemical

Adapted from Henriques, G. (2003). The Tree of Knowledge System and the Theoretical Unification of Psychology. Review of General Psychology. Vol. 7, No. 2, 156.