• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

IB Psychology - To what extent does genetic inheritance influence our behaviour?

Extracts from this document...

Introduction

Essay Question: To what extent does genetic inheritance influence our behaviour? A common saying goes, "You have your mother's genes, so you should be good at this!" This statement demonstrates that common belief dictates that our genes that we inherit influence our behaviour. Yet, how true is this statement? Genes are heredity processes that we receive from our parents that are a factor that determine our characteristics and behaviour. In layman's terms, they are the building blocks that define our coarse, rough behaviour, but fail to closely define our closer instincts and actions. That is where the environment comes in to play a role. Thesis: While genetics certainly do play and define a role in complex behaviours such as intelligence and aggression, they only do up to a limited extent; environment is the defining factor in such acts of behaviour. 2-3 Sentence Explanation: Twin studies and adoption studies point out that ultimately the environment is a defining factor within intelligence and learning potential, measured by IQ tests. Evidence from studies conducted on aggression suggest that the environment is a deciding factor in anti-social behaviour. ...read more.

Middle

Prime studies of this are the Minnesota Trans-Racial Adoption Study conducted by Scarr and Weinburg, which measured IQ testing scores of roughly a hundred children of minority ethnic groups who were raised under white families who were well off. The significance of this study was that in that era, children who were minorities as a trend often scored much lower than their white counterparts. Scarr and Weinburg attempted to demonstrate that the black children, regardless of the genetic makeup, would perform much better in intelligence if given the proper environment. Results, if taken rather broadly and generally, demonstrated that children who were adopted and brought up in such families performed better on IQ testing, which in conclusion suggested that the environment played a role in furthering their intelligence, rather than their genetic makeup. This is important because at that time children of minoric ethnicity performed poorly when in the regular situation with their own biological parents compared to similar children of minoric ethnicity who were placed in white households, demonstrating that the environment you are brought up in is as important, if not more, than your genetic makeup. ...read more.

Conclusion

Of course, the findings had limitations; the study had a narrow window of findings; in this case the environment, and not possibly other genetic factors other than the presence of the MAOA gene. However, this study again substantiates that the environment plays a major role in aggressiveness to an extent; and that in this case the MAOA gene plays in tune with the environment to demonstrate anti-social behaviour. We have seen from all the above studies and demonstrations that genes definitely do play a role in our behaviour. Yet, the role genetic inheritance plays is certainly overshadowed by the office our environment plays in our behaviour. Twin studies that demonstrate twins who were apart had different levels of intelligence, adoption studies that showed that children raised apart from their biological parents performed better, and studies demonstrating the role environment plays on aggression all point us to that while genetics are a decisive factor in deciding our behaviour, they are certainly overshadowed by that environment plays the major role of deciding what our behaviour will be in extent of intelligence and aggression. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Psychology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Psychology essays

  1. To what extent does genetic inheritance influence behavior

    To the question of where homosexuality mainly comes from, it can be answered that members of a family and twins as well as relatives, tend to have similar characteristics including sexual preference. Therefore, supported by the studies of homosexuality further supports the concept of heredity affecting our behavior.

  2. EE PSYCHOLOGY

    However linguistic abilities will speed up the process of learning. Principle of reinforcement has been shown to work effectively with animals that cannot talk. (Martin and Pear, 1983 :25) Language is a powerful adaptation but it is always not a power for good.

  1. Psychology IB Abnormal Notes and Essay Plans

    Method: brain scans to check levels of noradrenaline and serotonin 3. Results: abnormal levels of noradrenaline and serotonin in patients suffereing from depression 1. Evaluation point: 1. Abnormal level of neurotransmitters may not cause depression, 2. However it may indicate that depression may influence the production of neurotransmitters 3.

  2. Case Study of a Feral Child - Genie Wiley

    Psychiatrist Jay Shurley helped assess Genie after she was first discovered, and he noted that since situations like hers were so rare, she quickly became the centre of a battle between the researchers involved in her case. Arguments over the research and the course of her treatment soon arose.

  1. With reference to relevant research studies, to what extent does genetic inheritance influence ...

    It was well controlled as only 32 images were shown to each participant. Only healthy pregnant women were selected, thus eradicating any confounding factor of illness affecting responses. The data was quantitative as it was ranked via self-report, thus could be used for statistical analysis.

  2. To what extent is positive education in classroom settings successful in enhancing students happiness?

    All of the above studies followed all ethical guidelines, as conformed consent was obtained in all cases, participants had the possibility to withdraw at any time through the studies. Further more all formalities regarding confidentiality were for filled and protection of participants was followed.

  1. To What Extent Can Music Improve a Child's Intelligence?

    My thesis is that music is able to greatly improve and develop certain types of intelligence as it requires, develops and utilises many transferrable skills, such as reading, listening and problem solving. The Effect of Music Instruction on Intelligence Music and Linguistic Intelligence The definition of linguistic intelligence is the ability to effectively use and understand written and spoken language.

  2. To what extent do bystanders have a responsibility in the case of Marques Gaines?

    He replied that he is bleeding with eyes closed. To this point, it shows an extreme negative to the point that it is evil, in this case even worse than a bystander, the security guard represents the law of safety yet has failed.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work