Reference Terms
from Wikipedia, the free encyclopedia
Hallucination
A hallucination is a sensory perception experienced in the absence of an external stimulus, as distinct from an illusion, which is a misperception of an external stimulus.
Note: The above text is excerpted from the Wikipedia article "Hallucination", which has been released under the GNU Free Documentation License.
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Mind & Brain News
May 22, 2025
May 19, 2025 — A study shows a non-opioid pain reliever blocks pain at its source -- calming specific nerve signals that send pain messages to the brain. In mice, the compound SBI-810 eased pain from surgery, bone fractures, and nerve injury without causing ...
May 16, 2025 — Researchers have found that wild orangutans vocalize with a layered complexity previously thought to be unique to human communication, suggesting a much older evolutionary ...
May 8, 2025 — Why do cats generally live longer than dogs? New research suggests that longer lifespans of mammals like cats could be linked to their bigger brains and more complex immune ...
Apr. 30, 2025 — An experiment seven years in the making has uncovered new insights into the nature of consciousness and challenges two prominent, competing scientific theories: Integrated Information Theory (IIT) and Global Neuronal Workspace Theory (GNWT). The ...
Latest Headlines
updated 12:56 pm ET
May 22, 2025 — New studies reveal that both the public and healthcare providers often overlook social connection as a key factor in physical health, even though ...
May 21, 2025 — SSRIs boosted the ability of T cells to kill cancer cells and suppressed tumor growth in both mouse and human tumor ...
May 22, 2025 — As the US national debate intensifies around immigration, a new study is challenging conventional wisdom about 'brain drain'--the idea that when ...
May 22, 2025 — For the nearly 30 percent of major depressive disorder patients who are resistant to treatment, ketamine provides some amount of normalcy, but it requires frequent treatment and can have side ...
May 22, 2025 — Is artificial intelligence (AI) capable of suggesting appropriate behavior in emotionally charged situations? A team put six generative AIs -- including ChatGPT -- to the test using emotional ...
May 21, 2025 — There's good news for people with migraine who take common drugs before or during pregnancy -- a new study found no increase in neurodevelopmental ...
May 21, 2025 — Research teams have created a versatile set of gene delivery systems that can reach different neural cell types in the human brain and spinal cord ...
May 21, 2025 — Researchers demonstrated unprecedented rates of recovery for spinal cord injuries. Individuals with incomplete spinal cord injury safely received a combination of stimulation of a nerve in the neck ...
May 20, 2025 — Scientists and medics have developed an ultra-rapid method of genetically diagnosing brain tumors that will cut the time it takes to classify them from 6-8 weeks, to as little as two hours.The team ...
May 20, 2025 — The study explores how social influences, particularly peer pressure, impact substance use -- and misuse -- among young adults. A confidential online survey on alcohol use was given to 524 students ...