Introduction and overview of key principles for Unit 1 - Biology and Behavior. Introductory high school psychology.

1. Biological Perspective
Key
Principles

2. PRINCIPLE:
There are biological
correlates of behavior

3. The Brain is
our thought center

4. Chemicals and hormones
and their transmission
throughout our body
influence behavior,
cognitions and emotions

5. Physiology

7. Neuron

9. PRINCIPLE:
Behavior can be
innate because
it is genetically-
based.

10. PRINCIPLE:
Behavior can be
innate because
it is genetically-
based.

11. Animal
research can
provide insight
into human
behavior

12. Animal
Research

13. •Aim/Research Question
•Design
◦Method
◦Participants
◦Procedure
•Results
•Conclusion
Are You a Natural?

14. Twin
Studies

15. •Aim/Research Question
Are You a Natural?
To determine with a reasonable degree of
confidence which psychological
characteristics appear to be determined
primarily by genetic factors and which are
molded more by environment.

16. •Design
◦Method
◦Participants
◦Procedure
Are You a Natural?
Qualitative & Quantiative
(interviews, surveys, tests)
Identical twins reared apart
1 week visit
4 personality tests
3 aptitude tests
occupational inventories
2 intelligence tests
Checklist of household belongings
Measurement of parenting
Life History Interview
Psychiatric Interview
Sexual History Interview
ALL DONE INDIVIDUALLY

17. •Results
Are You a Natural?
Correlations for characteristics measured
were remarkably similar. They were close
to 1.00 and no lower than .700 for MZA and
MZT identical twin pairs.

18. •Conclusion
Are You a Natural?
Findings indicate that genetic factors
appear to account for most of the variations
in a variety of human characteristics.
Genetically identical humans reared apart
grew into adults who were extraordinarily
similar in basic psychology and personality.