(Medical Xpress) -- Psychedelic substances have long been used for healing, ceremonial, or mind-altering subjective experiences due to compounds that, when ingested or inhaled, generate hallucinations, perceptual distortions, ...
(Medical Xpress) -- Optically monitoring the brain’s neuronal activity can be accomplished in several ways, including electrochromic dyes, hydrophobic anions, calcium imaging, or voltage-sensitive ion channels. Fluorescence ...
(Medical Xpress) -- Rather than being a passive state, perception is an active process fueled by predictions and expectations about our environment. In the latter case, memory must be a fundamental component in the way our ...
(Medical Xpress) -- Neuroanatomy and neurophysiology are inherently three-dimensional domains. Neuronal cell body projections – axons and dendrites – can interconnect large numbers of neurons distributed over large ...
(Medical Xpress) -- A key phenomenon studied by neuroscientists is the brain’s ability to recognize errors when they occur, link them to the associated behavior, and apply those errors in a way that modifies the behavior ...
(Medical Xpress) -- Morphine's analgesic properties are as potent as its addictive potential are problematic. The neural pathway for that addiction is typically associated with dopamine (DA) neurons of the ventral tegmental ...
(Medical Xpress) -- One of the many potential consequences of ischemic stroke – a lesion, or localized pathological change in the brain, in which blood flow insufficient to meet metabolic demand leads to poor oxygen ...
(Medical Xpress) -- Historically, perceptual and response rates when multitasking have been interpreted as being limited by independent bottlenecks. While a more recent view suggests that a common bottleneck might be the ...
(Medical Xpress) -- The real world is, in a word, cluttered – but thanks to evolution, we (and other mammals) have no trouble detecting objects in visually complex natural environments. Determining precisely how this ...
(Medical Xpress) -- Of the world’s leading causes of death, stroke ranks second – and occurring 8 out of 10 times is ischemic stroke: reduced blood supply to the brain creates a shortage of oxygen, glucose and other ...
