Cognition 101
Further Readings in Typology

The following have contributed to cognitive and/or type models. Note that these might model other facets of personality or non-personality. None of these are direct sources of CTPT, but some are indirectly. As key resources we recommend:

Jungian typology, 1921
  • In Psychological Types, Jung described two general attitude-types “distinguished by the direction of general interest or libido movement” — extraverted vs introverted, as in orientated to the object/objective vs subject/subjective — and four special function-types “whose particularity […] plays the principal role in an individual’s adaptation or orientation to life” — thinking vs feeling, both rational or judging, and sensation vs intuitive, both irrational or perception-types.
MBTI, 1944 & Offshoot Schools
Socionics, 1970s-80s; & Offshoot Schools
Broader Community

The following have produced their own work while being less officially grouped or instituted. Attribution is sometimes unclear. Names proposed are “Pan-Jungian” or, as we say, dabbling in Franken-typology. Results may vary.

Typology Physiognomy ~2010s

Physiognomy includes the assessment of personality from expressions, features, and features resulting from expressions. It has a long, generally unvalidated or invalidated history, though it has some studies with potential validity as applied to Big 5 traits. Physiognomy has been recently applied to supposed cognitive typologies. There is some obscurity of documentation and references, including controversies of credits such as in taking from Socionics ideas, but these are ordered by which substantially/likely came first.