News archive

Four research projects coordinated from Karolinska Institutet have been awarded project grants by Knut and Alice Wallenberg Foundation (KAW) in 2022. This means that, over SEK 135 million are allocated to KI research in the fields of immunology, neuroscience, and stem cell biology.

Researchers at Karolinska Institutet have studied how the screen habits of US children correlate with how their cognitive abilities develop over time. They found that the children who spent an above-average time playing video games increased their intelligence more than the average, while TV watching or social media had neither a positive nor a negative effect. The results are published in the journal Scientific Reports.

Screen time is often associated with poor health in young people, but it is more complicated than that, say researchers. We are affected, but differently and not just negatively. What we do on our phones – and what we do when we are not using them – also plays a role in our well-being.

The ability to detect and react to the smell of a potential threat is a precondition of our and other mammals’ survival. Using a novel technique, researchers at Karolinska Institutet have been able to study what happens in the brain when the central nervous system judges a smell to represent danger. The study, which is published in PNAS, indicates that negative smells associated with unpleasantness or unease are processed earlier than positive smells and trigger a physical avoidance response.

It is mainly poorly controlled type 2 diabetes that carries an elevated risk of cognitive impairment and dementia, not the diabetes per se, a longitudinal study by researchers at Karolinska Institutet in Sweden shows. The study comprises over 2,500 people and is published in the journal Alzheimer’s & Dementia: The Journal of the Alzheimer's Association.

Vinnova is investing in eleven innovation environments in precision health that will pave the way to more preventive, accurate healthcare with greater equity, while helping Sweden strengthen its position as a leading life science nation. Of the eleven innovation environments selected, three are at Karolinska Institutet.

Birth by caesarean section is weakly associated with a lower general cognitive ability in young adult males. However, the magnitude of this association is not clinically relevant. This is according to a study at Karolinska Institutet, published in the Evidence-Based Mental Health. The lower general cognitive ability also seems to be largely explained by familial factors shared between siblings instead of mode of delivery, the study found.

Researchers at Karolinska Institutet and UCL have identified a general factor called ‘decision acuity’ that affects young people's decision-making ability, independent of IQ, and is associated with good social functioning. The results have been published in the journal Neuron.

Individuals with high ADHD-traits that do not meet the criteria for a diagnosis are less able to perform tasks involving attentional regulation or emotional control after a sleepless night than individuals with low ADHD-traits, a new study from Karolinska Institutet published in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging reports.

Three researchers at Karolinska Institutet have been awarded the 2020 ERC Starting Grant: Niklas Björkström, Janina Seubert and Nils Landegren. Their projects concern resident organ-specific immune cells, the cognitive mechanisms behind our preference of certain foods, and sex-differences in the human immune system and the risk of autoimmune disease. In all, the European Research Council will support 436 early-career researchers with this prestigious grant.

In a new study, researchers from the Department of Clinical Neuroscience at Karolinska Institutet have shown a clear link between game intelligence and the brain's ability to create and adapt under time pressure. The study is published in Nature Publishing Group's journal Scientific Reports.

Childhood environment and socioeconomic status affect cognitive ability and brain development during adolescence independently of genetic factors, researchers at Karolinska Institutet report in a new study published in the journal PNAS. The study demonstrates how important the family environment is, not just during early infancy but also throughout adolescence.

An international network of researchers in 10 countries are to study the effectiveness of homeschooling during the ongoing COVID-19 pandemic. The gathering of data via online surveys in the various languages is being led by researchers at Karolinska Institutet. The aims of the study are to look at the challenges facing families during the COVID-19 pandemic and to produce recommendations and technical methods for both homeschooling and teaching in general.

People who have been treated in intensive care commonly suffer from residual cognitive impairment, but the reason for this is unknown. Researchers at Karolinska Institutet now link cognitive impairment with lasting inflammation and a potential treatment target. The results are presented in the scientific journal Intensive Care Medicine.

The working memory and other cognitive functions in children and young people can be associated with how successful they are on the football pitch, a new study from Karolinska Institutet shows. Football clubs that focus too much on physical attributes therefore risk overlooking future stars.

​If you want to look attractive and healthy, the best thing you can do is get a good night's sleep, finds researchers at Karolinska Institutet in a novel study published in BMJ online. For the first time, say the authors, there is scientific backing for the concept of beauty sleep.