Researchers have uncovered new insights into how fasting alters dopamine signaling in the brain’s reward circuitry. Their findings, published in the Journal of Neurophysiology, suggest that fasted mice exhibit enhanced dopamine release in the ventral tegmental area (VTA) of the brain compared to fed mice. This may help explain fasting’s impact on motivation and reward-seeking …
Researchers have gained new understanding of how the brain controls movement using both overt motor control and brain-machine interface (BMI) control. Their findings provide insight into the distinct neural processes involved in BMI control compared to natural movement. Key Facts: Rhesus monkeys were trained to control a cursor using either overt arm movements or a …
Electrical neural interfaces are unlocking new possibilities for studying, restoring, and augmenting brain functions. These devices provide direct communication pathways to connect the nervous system with the external world. Recent innovations in neural electrode design, electronics, wireless transmission, integration of electrical and optical modalities, and neural data processing are rapidly advancing the capabilities of electrical …
A new study reveals that people who identify as liberal or left-leaning politically exhibit greater neural empathy responses compared to conservatives. The findings provide novel neuroscientific evidence that ideological differences extend to brain function during empathy. Key Facts: Researchers used MEG brain imaging to measure neural empathy responses in 55 participants as they observed others’ …
Human intelligence is a complex cognitive trait that has fascinated scientists and philosophers for centuries. New research is shedding light on the neurobiological underpinnings of intelligence, from genes to cells to brain networks. Key Facts: Intelligence is one of the most heritable human behavioral traits, with genetics explaining 50-80% of variability between individuals. Over 1000 …
Human intelligence has long fascinated scientists. With modern neuroimaging methods like MRI, we now have an unprecedented ability to examine the biological basis of intelligence in the living brain. Key Facts: Larger brain size predicts greater intelligence, but regional brain volumes matter more than total size. More intelligent individuals tend to have greater volumes in …
Binaural beats are an auditory illusion that occurs when two tones of slightly different frequencies are played in each ear. Some claim that binaural beats can synchronize and entrain brainwaves to match the difference frequency. But does scientific evidence support these alleged “brainwave entrainment” effects? A new systematic review published in PLOS ONE analyzed the …
New neuroimaging technologies are rapidly advancing our ability to examine the brain, revealing information about our memories, thoughts and even intentions. As these technologies improve, some are advocating for their use in criminal investigations and legal proceedings. But could mandatory brain scans used on suspects violate privacy rights? Key Facts: Neuroimaging technologies like MRI, CT, …
The use of neuroscience in criminal court cases has risen steeply in recent decades. However, its actual effects on legal judgments remain unclear. Key Facts: Neuroscience evidence, especially brain scans, is increasingly used in criminal trials to support mental disorder diagnoses. Studies find limited effects of neuroscience evidence in some cases, like reducing death penalty …
Low intensity focused ultrasound (LIFU) is an exciting new non-invasive brain stimulation technology that allows precise neuromodulation of deep brain structures without surgery. Early research shows LIFU can safely and reversibly modulate targeted areas of the brain using sound waves, opening doors for understanding and treating psychiatric illnesses. Key Facts: LIFU uses acoustic energy to …
