9 votes

How is epigenetic memory expressed in neurons?

There are (at least) two ways epigenetic traits are inherited. The important background in both cases is gene expression: there is a misconception that genes are for this or that, where the reality ...
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7 votes
Accepted

Why are trans-women more common than trans-men?

Short answer: It might be genetic. Human sexual behaviour, especially where stigma and taboos are involved, is notoriously difficult to study, so the real answer is that we just don't know. However, ...
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  • 17.9k
7 votes

Is there a theoretical maximum for IQ?

There are a few ways that you could answer this question. First, IQ is defined with a mean of 100 and a standard deviation of 15. But this is a normative score and relative to a given target ...
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6 votes

Why are trans-women more common than trans-men?

Exactly like you, I would like to begin by saying that I have no animosity nor prejudice against anyone. What I am saying below is not meant to be offensive to anyone, it is just an honest account of ...
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6 votes
Accepted

Where does instinctual knowledge come from?

In my mind there are two main explanations of this kind of instinct behaviours. The first one is rooted in evolution. There are many examples of human innate behaviours which we can't explain e.g. ...
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6 votes
Accepted

Hearing Loss and Potentially hearing more

Short answer People with above-normal hearing exist. Background Normal hearing was defined as the average of a group of young healthy individuals. These normal hearing levels are currently used to ...
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  • 19.6k
5 votes

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

You could start by reading "Intelligence: Knowns and Unknowns". This is a consensus article based on many of the world's leading researchers on intelligence. Empirical research suggests that ...
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5 votes

Do children inherit intelligence from their mothers and not their fathers?

The psychology-spot article mostly links to researches done on mice. Only three links are about human genetics. One is philosophical in nature, other two deal with mental retardation. This study says ...
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  • 404
4 votes
Accepted

What are the reasons behind monogamy in humans?

First off, I think monogamy is a socially and culturally determined construct in man. In the animal world both monogamy and polygamy are encountered. Monogamy increases the chance of the survival of ...
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  • 19.6k
3 votes
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Is short term memory ability inherited?

Have any studies been done on the inheritability of different mental abilities such as short-term-memory, long term memory and so on. One of the most replicated findings of behavioral genetics is ...
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  • 700
3 votes
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Are schizophrenia and OCD genetically related?

Yes, there is almost certainly a genetic overlap between schizophrenia and OCD. Quantifying the overlap in variation requires genotyping a large number of individuals, and a lot of this cross-...
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3 votes
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Best way to modeling ADHD?

The approach you would take will depend upon your level of analysis. For instance, one could choose to model an entire individual's behaviour (i.e. with heuristic models), the activity of neural ...
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3 votes

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

The statement 50% of happiness is determined by genetics is presumably talking about heritability estimates. It is probably talking about the percentage of variance explained by genetics. These ...
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3 votes
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Is there anything called genetic anxiety?

Predisposition to anxiety can be inherited: Genetics and family history (e.g., parental anxiety) may predispose an individual for an increased risk of an anxiety disorder, but generally external ...
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  • 17.9k
3 votes
Accepted

What is the underlying genetic basis for ADHD?

I hope the few sources below answer your question. I strongly recommend you read actual sources as opposed to the parts I have quoted. I don't know much about this topic so I did not attempt to ...
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  • 1,154
3 votes

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

In addition to MariaAnt's good contribution, let me take another angle. You wrote: Studies comparing identical and fraternal twins, or occasionally identical twins reared apart have mostly ...
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  • 512
2 votes

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

The Wikipedia article seems to provide a summary of this information with links to the primary literature http://en.wikipedia.org/wiki/Causes_of_schizophrenia#Genetics Concordance rates between ...
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2 votes
Accepted

How similar are human brains within the same haplogroup?

The following comes from my research experience using fMRI to study the human visual system. Overall, peoples brains are similar to each other on higher scales, and become very different from each ...
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  • 1,487
2 votes

Is there evidence of a mechanism for transmission of instinct?

http://www.theguardian.com/world/2007/dec/12/japan.justinmccurry Here they talk about scientist who shut down fear of cat in mice behavior. After genetic engineering the mouse isn't afraid of the cat ...
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  • 41
2 votes

Do twin studies overestimate heritability?

It seems likely that some percentage of twin studies would fail to account for all the systematic environmental variables that connect their twins. In this case, the effects of these variables would ...
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2 votes

if IQ is inherited, is it from father or mother?

Both. The Independent article used a blog post as its main source. The blog post (which is no longer online) claimed to rely on a doc (scientific document) that actually hardly supports its main ...
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2 votes
Accepted

Excluding psychometry and interview methods, is there any physical or molecular method that can confirm mild autism?

No. The key term that will help you look for research about this is the word "biomarker". There are certainly correlations with autism and some of the measurement techniques, but they aren't ...
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  • 5,629
2 votes
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Personality at Birth

The nature vs nurture debate is long standing. Nurture presumably plays little or no role for the majority of newborns (see prenatal discussion below), therefore nature (genetics) would be the only ...
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  • 1,688
2 votes

In technologically advanced countries, do most autistic adults not know they are autistic?

Short answer: Yes. Modern estimates of global prevalence for autism are around 1-2% (for systematic reviews, see Baxter et al, 2015; Chiarotti & Venerosi, 2020). Prevalence rates appear stable ...
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  • 17.9k
1 vote

Do separate neural circuits express separate genes in the same type of brain matter?

So, I am revisiting your question as asked by community, and I discover I misunderstood it initially: you didn't say neurons process information, you said neural circuits do. And that distinct neural ...
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  • 424
1 vote

Is epigenetic the study of environment/genome interaction?

Epigenetics is the study of changes in gene function, from parent to offspring, that do not involve changes in the DNA sequence. (Source: Wikipedia) In the original sense of this definition, ...
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  • 11.1k
1 vote

Toulouse-Lautrec Syndrome

Since pycnodysostosis is caused by mutations that cause deficiency in Cathepsin K, it makes sense to look at animal models for the latter; there's a fairly recent study Dauth, 2011... Cathepsin K ...
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  • 9,895

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