Genetic risk for schizophrenia and bipolar disorder is linked to specific types of intelligence
A new study reveals that genetic risks for conditions like schizophrenia are linked to lower problem-solving skills but higher accumulated knowledge. The findings show that intelligence and mental health share a highly complex genetic relationship.
A recent study published in Nature Communications has revealed that the genetic risk factors for psychiatric conditions such as schizophrenia and bipolar disorder may be linked to specific types of intelligence. Rather than viewing intelligence as a singular trait, researchers have found that conditions like these share different genetic roots with problem-solving skills compared to acquired knowledge.
The findings challenge the traditional approach of treating cognitive ability as one broad category, highlighting the importance of understanding the distinct skills that make up human cognition. These skills include processing speed, fluid reasoning, and crystallized knowledge. Crystallized knowledge, which encompasses facts and vocabulary learned through culture and life experience, was previously underrepresented in genetic studies due to a lack of sufficient data.
The research, led by Diego Londoño-Correa from the University of Texas at Austin, aimed to provide a more detailed picture of the genetic connections between mental health and intelligence by breaking cognition into these specific domains. The study analyzed genetic data from hundreds of thousands of individuals and found that the apparent contradiction between cognitive difficulties in psychiatric disorders and their association with educational attainment could be attributed to the difference between these cognitive domains, which had been overlooked in previous studies.
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