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While the name "behavioural genetics" connotes a focus on genetic influences, the field broadly investigates the extent to which genetic and environmental factors influence individual differences, and the development of research designs that can remove the confounding of genes and environment.
Childhood trauma can severely affect the development of the brain, resulting in the alteration of neural circuits which are involved in emotional regulation and threat detection. Childhood trauma has been associated with a wide array of mental health disorders such as bipolar disorder, anxiety, post traumatic stress disorder (PTSD), and depression.
Behavioral epigenetics is the field of study examining the role of epigenetics in shaping animal and human behavior. [1] It seeks to explain how nurture shapes nature, [2] where nature refers to biological heredity [3] and nurture refers to virtually everything that occurs during the life-span (e.g., social-experience, diet and nutrition, and exposure to toxins). [4]
The basic understanding of behavioural genetics requires the separate study of effects of genes and environment influence on human behaviour. Such as, the genetic effects in a trait are discernible if pair of genetically identical (monozygotic twins) are much similar to one another than pair of genetically non-identical (dizygotic twin).
The basic principle behind psychiatric genetics is that genetic polymorphisms (as indicated by linkage to e.g. a single nucleotide polymorphism) are part of the causation of psychiatric disorders. [1] Psychiatric genetics is a somewhat new name for the old question, "Are behavioral and psychological conditions and deviations inherited?".
Personality traits are patterns of thoughts, feelings and behaviors that reflect the tendency to respond in certain ways under certain circumstances. [1] Personality is influenced by genetic and environmental factors and associated with mental health. [2] Beside the environment factor, genetic variants can be detected for personality traits.
Genetics influence not only what we look like, but our interests, abilities, health and so much more. And now we know a little more about brains and genetics. Recent research reveals that your ...
However, it is widely accepted that variance in gene sequence affect behavior, and genes are a significant risk factor for personality disorders. [20] With the growing interest in using molecular genetics in tracing the biological basis of personality, [ 8 ] there may be more gene-trait links found in the future.