3. Growth and Development Theory –
Biophysical Theory
• Biophysical Theory – theory describes the development of the
physical body – how it grows and changes
• Arnold Gesell – is often identified as the “father of child
development”
3
11. Fixation
• If the individual does not
achieve satisfactory
progression at one stage,
the personality becomes
fixated at that stage.
• Fixation is immobilization
or the inability of the
personality to proceed to
the next stage because of
anxiety.
11
12. Reading resources
• Kozier & Erb's Fundamentals of Nursing: Concepts, Process and
Practice – Chapter 24
• Potter & Perry Fundamentals of Nursing – Chapter 12-14
12
Sigmund Freud (1856 – 1939)
Concept – unconscious mind; defense mechanism; and the id, ego, and superego
The unconscious mind is the part of an individual’s mental life of which the individual is unaware.
The id resides in the unconscious and, operating on the pleasure principle, seeks immediate pleasure and gratification
The ego, the realistic part of the individual, balances the gratification demands of the id with the limitations of social and physical circumstances
The superego contains the conscience and the ego ideal.
If the individual does not achieve satisfactory progression at one stage, the personality becomes fixated at that stage.
Fixation is immobilization or the inability of the personality to proceed to the next stage because of anxiety.
For example, making toilet training a positive experience during the anal stage enhances the child’s feeling of self-control.
If, however, the toilet training was a negative experience, the resulting conflict or stress can delay or prolong progression through a stage or cause an individual to regress to a previous stage.
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