Biological Bases of Behavior
How do humans react to the ferocious roar of the bear? Why do humans have headaches and stress out when come upon to do certain tasks? The environment, genes and chromosomes, and the central nervous system are factors to answer these questions. The human psychological characteristics and behavior are built by a combination of these factors. Psychologists use these factors to determine people’s psychological makeup and behavior. However, a person’s characteristics come primarily from their genes.
From the time the baby gets out into the real world inherited genes are making the baby act in a certain way. When someone tickles them, they might cry or laugh. Their genes establish their reaction to these events. From the beginning of birth, the baby’s reaction to the environment can only be determined by its genes. As a result, human behavior uses a combination of environmental and inherited trait factors.
The central nervous system connects the brain and spinal cord together. Without them humans could not send or receive information from other parts of the body. When the genes send a message the endocrine system secretes thyroid gland. Then, the thyroid gland secretes hormones to influence the growth of the brain; thus, a combination of genes and the nervous system determine the human’s psychological characteristics.
`Many important traits are highly inherited like IQ and height. A person can raise their IQ during a span of time, but they will never have a high IQ unless they were born with one. Genes influence human behavior for fifty percent, the rest being based on environmental factors. Scientists should put genes in a fifty-plus percent group since they determine a human’s reaction to environmental factors. Thus, genes have a greater impact on how humans look at the world and environment.
` `The environment is an important factor to human development in growth and behavior. A study found that the resemblance on general...