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15 June 2021 | Story Leonie Bolleurs | Photo Supplied
Zurika Murray says the study of Behavioural Genetics at the UFS focuses on human behaviour, specifically neurotransmitter systems, such as serotonin that may contribute to specific behavioural patterns.
Zurika Murray says the study of Behavioural Genetics at the UFS focuses on human behaviour, specifically neurotransmitter systems, such as serotonin that may contribute to specific behavioural patterns.

Hi. I am John. I have anger issues.

Just like John, there are thousands of South Africans with anger issues, often leading to violent crimes such as the more than 21 000 murder cases and 165 000 plus assault cases reported in 2020, according to a study by the South African Police Service and Statistics South Africa.

Aggression can be a great threat to society when it leads to violence. However, it can also be an absolute necessity when it leads to perseverance and a drive towards success and survival. This is according to Zurika Murray, a lecturer in the Department of Genetics at the University of the Free State (UFS), who is doing research on behavioural genetics.

 

Behavioural genetics

She explains behavioural genetics as a study of genetic variation contributing to how an organism interacts with and within its environment. “At the UFS, we focus on human behaviour, and specifically neurotransmitter systems, such as serotonin that may contribute to specific behavioural patterns.”

When one has the right amount of serotonin in your body, it is easier to have stable moods and a sense of well-being.

She says the neurotransmitter (which plays a role in, among others, emotional regulation) acts as a mediator, relaying messages and influencing response to environmental stimuli.  “This system is very adaptable, facilitating our functioning in an ever-changing emotional environment; but when dysfunctional, it can cause quite a number of abnormalities, from anxiety and depression to dysfunctional impulse control and violence. When some individuals are exposed to adverse developmental environments such as abuse and neglect, they can develop aggression and violence.”

“One of our current projects looks specifically at male juvenile delinquency and monoamine neurotransmitter systems (such as serotonin) that may contribute to specific characteristics (such as impulsivity) of delinquency.”

According to Murray, their research is also looking at the genetic variation within specific neurotransmitter genes to see if they could find similarities among individuals with similar developmental backgrounds.  “This neurotransmitter system additionally responds relatively well to physical activity as a management strategy for aggression in some individuals. We are looking at variations in this system that might explain this,” says Murray.

 

Genetic counselling

Apart from the genetic contribution, we also know that the developmental environment plays a very important role. Many people observe anger while growing up – it was thus part of their developmental environment. For them, it is appropriate behaviour in specific situations.

To understand this contribution from the developmental environment, a background in psychology is necessary.  The undergraduate degree in Behavioural Genetics at the UFS has Genetics and Psychology as majors, and this is where the link to genetic counselling comes in.

Murray explains that genetic counselling is a field in medical sciences focusing on helping patients affected by medical conditions to understand the underlying genetics.  For individuals with a family history of genetic conditions (such as specific cancers) or pregnant mothers with foetuses affected by genetic abnormalities (such as Down syndrome), the services of a genetic counsellor are invaluable.  A genetic counsellor will help these individuals understand the cause of the disorder, how it was diagnosed, what the symptoms are, what the progression will look like, if any treatment is available, and what the possible options are (if any) for alternatives.

Genetic counsellors need a strong background in both Genetics and Psychology. To become a registered genetic counsellor, a student completes a BSc degree in Biological Sciences (Behavioural Genetics at the UFS would be ideal).  Thereafter an honours degree in either Genetics or Psychology (though Genetics is preferable).  The student can then apply at either the University of the Witwatersrand or the University of Cape Town for a master’s degree in Genetic Counselling.  This entails two years of study, followed by two years of practical internship. Only after this you will be able to register with the Health Professions Council of South Africa (HPCSA) as a genetic counsellor.

Students studying Behavioural Genetics at the UFS are off to a great start. Murray’s teaching philosophy is to always strive to deliver students who are better than she is. “I can only really do this by sharing my passion for my research. I hope to inspire my students to also always be hungrily curious, to always question, and to find the joy in knowledge and learning.”

News Archive

Renowned writer for Africa Day
2012-05-31

 

Attending the lecture were, from left: Dr Choice Makhetha, Vice-Rector: External Relations; Prof Kwandiwe Kondlo, Director of the Centre for Africa Studies;Prof. Ngugi wa Thiong'o; Prof Lucius Botes, Dean of the Faculty of the Humanities, and Prof Andre Keet, Director of the Institute for Reconciliation and Social Justice..
Photo: Stephen Collett
25 May 2012

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Lecture: THE BLACKNESS OF BLACK: Africa in the World Today

Audio of the lecture

Profile of Professor Ngugi wa Thiong'o (pdf format)

“Flowers are all different, yet no flower claims to be more of a flower than the other.” With these words Kenyan writer and one of the continent's most celebrated authors, Prof. Ngugi wa Thiong’o, delivered the tenth annual Africa Day Memorial lecture on 25 May 2012 in the University of the Free State's (UFS) Odeion Theatre on the Bloemfontein Campus. The lecture was hosted by the Centre for Africa Studies.

Long before Prof. wa Thiong’o was led inside the venue by a praise singer, chairs were filled and people were shown to an adjoining room to follow the lecture. Others, some on the university's Qwaqwa Campus, followed via live streaming.

In his speech titled the Blackness of Black: Africa in the world today, Prof. wa Thiong’o looked at the standing of Africa in the world today. He highlighted the plight of those of African descent who are judged “based on a negative profile of blackness”.

Prof. wa Thiong’o recalled a humiliating experience at a hotel in San Francisco in the United States, where a staff member questioned him being a guest of the hotel. He shared a similar experience in New Jersey, where he and his wife were thought to be recipients of welfare cheques. He said this was far deeper than overt racism.

“The certainty is based on a negative profile of blackness taken so much for granted as normal that it no longer creates a doubt.”

Prof. wa Thiong’o said the self certainty that black is negative is not confined to white perception of black only.

“The biggest sin, then, is not that certain groups of white people, and even the West as a whole, may have a negative view of blackness embedded in their psyche, the real sin is that the black bourgeoisie in Africa and the world should contribute to that negativity and even embrace it by becoming participants or shareholders in a multibillion industry built on black negativity.”

“Africa has to review the roots of the current imbalance of power: it started in the colonisation of the body. Africa has to reclaim the black body with all its blackness as the starting point in our plunge into and negotiations with the world.”

Prof. wa Thiong’o concluded by saying that Africa must rediscover and reconnect with Kwame Nkrumah’s dreams of a politically and economically united Africa.

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