Roy's model sees the individual as a set of interrelated systems (biological, psychological and social).
[1] Roy's model sees the person as "a biopsychosocial being in constant interaction with a changing environment".
Roy sees the environment as "all conditions, circumstances and influences that surround and affect the development and behaviour of the person".
[1] Roy's goal for nursing is "the promotion of adaptation in each of the four modes, thereby contributing to the person's health, quality of life and dying with dignity".
This is typically stated as the nursing problem related to the focal stimuli, forming a direct relationship.
Roy's model drew heavily on the work of Harry Helson, a physiologic psychologist.
The model was developed specifically for the individual client, but it can be adapted to families and to communities (Roy, 1983)[full citation needed].
Roy states (Clements and Roberts, 1983)[full citation needed] that "just as the person as an adaptive system has input, output.
According to Roy and Roberts (1981, p. 43)[full citation needed], ‘The person has two major internal processing subsystems, the regulator and the cognator."
These subsystems are the mechanisms used by human beings to cope with stimuli from the internal and external environment.
The regulator mechanism works primarily through the autonomic nervous system and includes endocrine, neural, and perception pathways.
Transactional patterns fall into the interdependence mode (Clements and Roberts, 1983)[full citation needed].
The model views the client in a holistic manner and contributes significantly to nursing knowledge.
The nurse assesses the degree to which the family's actions in each mode are leading to positive coping and adaptation to the focal stimuli.
By answering each of these questions in each assessment, a nurse can have a full understanding of the problem's a patient may be having.
It is important to recognize each stimuli because without it, not every aspect of the person's problem can be confronted and fixed.
As a nurse, it is their job to recognize all of these modes, mechanisms, and stimuli while taking care of a patient.