Uncovering the presynaptic distribution and profile of mitochondria
Scientists have provided unprecedented insight into the presynaptic distribution and profile of mitochondria in the developing and mature calyx of Held.
Read moreIntelligence
New diagnostic criteria may enable earlier detection of cognitive impairment in women
Study finds when verbal memory test cut-offs were tailored to patient sex, more female patients and fewer male patients were considered to have amnesic mild cognitive impairment. This could change the way aMCI diagnoses are determined and make it easier to catch the condition in its early stages.
Read moreNew mechanism fueling brain metastasis
Scientists described a novel mechanism through which astrocytes, the most abundant supporting cells in the brain, also promote cancer cell growth and metastasis in the brain.
Read moreNew method visualizes groups of neurons as they compute
Using a fluorescent probe that lights up when brain cells are electrically active, researchers found they can image the activity of many neurons at once, in mice brains. The technique could allow neuroscientists to analyze circuits within the brain and link them to specific behaviors.
Read moreSiblings of problem gamblers also impulsive, prone to risk-taking
Biological siblings of people with gambling disorder also display markers of increased impulsivity and risk-taking, according to a new psychology study. The findings suggest people with gambling disorder — a psychiatric term for serious gambling problems — may have pre-existing genetic vulnerabilities to the illness.
Read moreBlood test could help to accelerate brain cancer diagnosis
A blood test which could help to accelerate the diagnosis of brain cancer has been developed in new research.
Read moreHow neuronal migration and outgrowth shape network architecture
Neurons are not randomly arranged in the human brain. In the cortex, they are organized in interconnected clusters with high intrinsic connectivity. This modular connectivity structure, in which clusters eventually serve as functional units, is formed in early phases of development. The underlying self-organization process is regulated by neuronal activity but the detailed mechanisms are still poorly understood. Based on in vitro studies and computational modeling, neuroscientists have now made an important contribution to the understanding of brain networks and their development: in their current study, they show how neuronal outgrowth and migration interact in shaping network architecture and the degree of modularity in mature networks.
Read moreLow intelligence linked to suicide risk later in life
People with low scores on intelligence tests in adolescence run a higher risk of suicide and suicide attempt later in life. That is according to a study that followed almost 50,000 Swedish men from the 1970s until recently.
Read moreDog ownership associated with longer life, especially among heart attack and stroke survivors
Dog ownership was associated with a 33% lower risk of early death for heart attack survivors living alone and 27% reduced risk of early death for stroke survivors living alone, compared to people who did not own a dog. Dog ownership was associated with a 24% reduced risk of all-cause mortality and a 31% lower risk of death by heart attack or stroke compared to non-owners.
Analysis of US labor data suggests 'reskilling' workers for a 'feeling economy'
A study of US labor data suggests AI is already taking 'thinking economy' jobs from humans, and this trend will grow in the future. This will push more people into 'feeling economy' jobs that require things like interpersonal relationship skills and emotional intelligence.
Read more