For questions on neurological or psychological disorders that have a basis in chromosomal abnormalities and/or are heritable

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2
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2answers
315 views

What is the concordance rate for schizophrenia in monozygotic and dizygotic twins?

What is general level of concordance for twins and is it higher for monozygotic twins? What research is available on this?
9
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1answer
101 views

How is epigenetic memory expressed in neurons?

Epigenetic memory is seen as the most evolutionarily plausible way of learning from experiences and gaining instinctual knowledge accross generations, as established by the answer to one of my ...
3
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1answer
23 views

Is there evidence of a mechanism for transmission of instinct?

DNA would seem to be the only candidate for propagating instinctual behavior, yet I find that not credible. DNA mainly codes for the production of protein structures (like enzymes) and is mainly about ...
4
votes
3answers
96 views

What does the statement mean “50% of happiness is determined by genetics”?

I posted the question "Is 50% of a happiness determined by genetics?" on Skeptics but realize I don't fully understand the claim. What does it mean that 50% of happiness is determined by genetics? ...
2
votes
2answers
72 views

Is there anything called Genetic Anxiety?

We inherit a lot from our ancestors, but how much the term Genetic Anxiety is true, and if it is true, can it be cured through the same ways(CBT, Exposure Therapy) or it has to be dealt with ...
3
votes
1answer
77 views

Epigenetics and serotonin (amygdala threat response)?

In this article it states that: Increased promoter methylation of the serotonin transporter gene predicted increased threat related amygdala activity. I'm finding this somewhat difficult to ...
5
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0answers
78 views

Is intelligence (or mental ability) genetically transferred (inherited characteristic) from the parent to the offspring or is it an acquired trait?

The question is simple- whether our mental ability i.e. ability to acquire and store knowledge and comprehend and analyse the stored bits, an inherited trait (i.e. genetically transmitted from the ...
4
votes
1answer
57 views

What is the underlying genetic basis for ADHD?

According to Psychcentral depression, bipolar disorder, ADHD, schizophrenia and autism are traceable to the same inherited genetic variations According to AsapSCIENCE, depression could be genetic due ...
5
votes
2answers
92 views

Is the Flynn effect in conflict with other studies of intelligence heritablity?

Studies comparing identical and fraternal twins, or occasionally identical twins reared apart have mostly concluded that there is a pretty high heritability of IQ. These studies, in particular the ...
3
votes
1answer
135 views

Does heritability define the person in terms of the population?

I recently read a statement that goes like this: heritability is a population construct. Isn't heritability dependent on genetic differences? Can someone provide an example of what it means to be a ...
1
vote
1answer
56 views

Unified Theory of the Human Brain [closed]

I'm a junior researcher(Life Sciences undergraduate) starting out in computational genetics of neuroscience, and I want to create a Unified Theory/Computational Model of the human brain and all its ...
4
votes
1answer
44 views

Hearing Loss and Potentially hearing more

I've been diagnosed since I was younger (2nd grade) with a hearing impairment. Basically the nerve hairs on my cochlea are burned and I don't pick up 70% of the frequencies around me in my right ear. ...
6
votes
1answer
275 views

Where does instinctual knowledge come from?

From Wikipedia: Instinct or innate behavior is the inherent inclination of a living organism towards a particular complex behavior. The example that I find is the easiest to touch upon is the ...
3
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1answer
195 views

How much information on the “Identical Strangers” experiment was actually released?

I am in the process of researching the Nature vs. Nurture debate. While I was searching for articles on it, I discovered something known as the "Identical Strangers" experiment (that probably was ...
5
votes
0answers
41 views

How does de-myelination occur in multiple sclerosis? [closed]

From what I understand, only the oligodendrocytes are affected in multiple sclerosis, and they are attacked by T cells which cross the blood-brain barrier. This leads me to two questions: How is the ...
11
votes
1answer
119 views

How similar are human brains within the same haplogroup?

I've read about neuroscience and listen to talks like this one Juan Enriquez: Will our kids be a different species, I'm starting to realize that humans are not all the same, and are instead quite ...
9
votes
1answer
250 views

Is religiousness a genetically heritable feature?

I know that parent beliefs have very strong influence on child, but is it possible that genetic factor also play a role? I doubt that the content of any religion could be heritable through genes nor ...
7
votes
1answer
456 views

Do children follow parents' phobias genetically or by learning?

Children's personalities come from two sources: Parents' genes and the environment. Is there any research showing adults acquiring phobias as a result of being exposed to parents with the same ...
10
votes
1answer
307 views

Why are most people right handed?

How did right handedness win over left handedness in numbers? Is it only a coincidence that there are more right handed people than left handed ones? Or, has some effect in nature explicitly made ...
10
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0answers
83 views

What are some known roles or correlations of glucocorticoid receptor function to behaviour?

The NR3C1 gene encodes for a neuron-specific glucocorticoid receptor (GR), of which methylation levels have been shown to relate to altered maternal care and stress response in rodents (Weaver et al., ...
10
votes
3answers
397 views

What is the term for a psychological effect which does not have a neurobiological/genetic basis?

When a psychological condition is the result of irregular brain structures or neurotransmitter imbalances we say the condition has a neurobiological basis; this is analogous to the classic Nature in ...
6
votes
1answer
2k views

What are the main causes of whether a person becomes introverted or extraverted?

Genetics is obviously an important cause of whether someone becomes extraverted or introverted. But what percentage is genetics and what percentage is the environment? What factors in the environment ...