Reference Terms
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Intelligence quotient
An intelligence quotient or IQ is a score derived from a set of standardized tests developed to measure a person's cognitive abilities ("intelligence") in relation to their age group. An IQ test does not measure intelligence the way a ruler measures height (absolutely), but rather the way a race measures speed (relatively). Modern IQ tests produce scores for different areas (e.g., language fluency, three-dimensional thinking, etc.), with the summary score calculated from subtest scores. The average score, according to the bell curve, is 100.
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Mind & Brain News
June 9, 2025
June 7, 2025 — Cannabis use among older Americans has climbed dramatically, with 7% of adults 65 and older now reporting recent use. This rise isn't just in numbers but also in diversity older users today are more likely to be women, college-educated, and ...
June 3, 2025 — Using a newly devised, three-dimensional model to study the regeneration of nerve tissue in the nose, researchers have discovered that one type of stem cell thought to be dormant may play a more significant role in preserving the sense of smell than ...
June 3, 2025 — A new study challenges a decades-old assumption in neuroscience by showing that the brain uses distinct transmission sites -- not a shared site -- to achieve different types of ...
June 2, 2025 — A trial of an interactive game that trains people to alter their brain waves has shown promise as a treatment for nerve pain -- offering hope for a new generation of drug-free ...
June 3, 2025 — The effects of artificial intelligence on adolescents are nuanced and complex, according to a new report that calls on developers to prioritize features that protect young people from exploitation, manipulation and the erosion of real-world ...
June 3, 2025 — According to a recent study, in patients with frontotemporal dementia (FTD), epileptic seizures are significantly more common than previously known. The discovery deepens understanding of the ...
June 3, 2025 — As psychedelics gain traction as potential treatments for mental health disorders, an international study stands to improve the rigor and reliability of clinical ...
June 2, 2025 — Marijuana use among older adults in the US has reached a new high, with 7 percent of adults aged 65 and over who report using it in the past month, according to a recent ...
June 2, 2025 — Human-AI interactions are well understood in terms of trust and companionship. However, the role of attachment and experiences in such relationships is not entirely clear. In a new breakthrough, researchers from Waseda University have devised a ...
June 2, 2025 — Despite advances in machine vision, processing visual data requires substantial computing resources and energy, limiting deployment in edge devices. Now, researchers from Japan have developed a self-powered artificial synapse that distinguishes ...
June 2, 2025 — What happens inside your brain when you hear a steady rhythm or musical tone? According to a new study, your brain doesn't just hear it -- it reorganizes itself in real ...
June 2, 2025 — Making a discovery with the potential for innovative applications in pharmaceutical development, a microbiology student has found a long sought-after fungus that produces effects similar to the semisynthetic drug LSD, which is used to treat ...
Latest Headlines
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June 7, 2025 — Humpback whales have been observed blowing bubble rings during friendly interactions with humans a behavior never before documented. This surprising display may be more than play; it could represent ...
June 2, 2025 — A new way of thinking about Alzheimer's disease has yielded a discovery that could be the key to stopping the cognitive decline seen in Alzheimer's and other neurodegenerative diseases, including ALS ...
May 30, 2025 — Singing to your infant can significantly boost the baby's mood, according to a recent study. Around the world and across cultures, singing to babies seems to come instinctively to caregivers. Now, ...
May 30, 2025 — New research has found that men who carry a common genetic variant are twice as likely to develop dementia in their lifetime compared to ...
May 29, 2025 — A new study suggests that mindfulness training and/or non-invasive brain stimulation could reduce bladder leaks and feelings of urgency in patients with 'latchkey ...
May 29, 2025 — Coffee can help you stay awake. But what does caffeine actually do to your brain once you're asleep? Using AI, a team of researchers has an answer: it affects the brain's ...
May 29, 2025 — A lab-designed molecule developed and extensively studied could represent a breakthrough in slowing tumor recurrence in glioblastoma, an aggressive ...
May 29, 2025 — The activation of Protein Kinase A (PKA) is a critical part in how the body responds to stress and starvation. Using a variety of imaging and biochemical techniques, a team of researchers has ...
May 28, 2025 — Researchers have identify a set of biomarkers that could someday make it easy to spot the disease in a patient's blood ...
May 28, 2025 — Researchers have released the full dataset from the Dallas Lifespan Brain Study, a decade-long project designed to track brain and cognitive health as people age and distinguish neurologically ...