The action outcome, x , may then be said to be dependent upon a combination of effective personal force and effective environmental force, thus: - Fritz Heider

[Unlike objects, people are] usually perceived as action centers and as such can do something to us. They can benefit or harm us intentionally, and we can benefit or harm them. Persons have abilities, wishes, and sentiments; they can act purposefully, and can perceive or watch us. They are systems having an awareness of their surroundings and their conduct refers to this environment, an environment that sometimes includes ourselves.

In the basic case, where the person is concerned with the dispositional properties of his surrounding environment, the choice is between external attribution and internal (self) attribution.

One might say psychological processes such as motives, intentions, sentiments, etc., are the core processes which manifest themselves in overt behavior and expression in many variable ways.