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
January 20, 2025
Jan. 16, 2025 — A new study found that younger siblings generally receive more favorable treatment from parents. Meanwhile, older siblings are often granted more autonomy, and parents are less controlling towards them as they grow ...
Jan. 13, 2025 — A new study shows that the risk of developing dementia anytime after age 55 among Americans is 42%, more than double the risk reported by older ...
Jan. 3, 2025 — Interactions with friends and family may keep us healthy because they boost our immune system and reduce our risk of diseases such as heart disease, stroke and type 2 diabetes, new research suggests. ...
Jan. 1, 2025 — Researchers have found the pupil is key to understanding how, and when, the brain forms strong, long-lasting ...
Latest Headlines
updated 12:56 pm ET
Jan. 20, 2025 — Boys exposed to violent screen content in the preschool years were more likely to become antisocial and violent themselves a decade later, in their mid-teens, a new study ...
Jan. 20, 2025 — A global survey spanning 68 countries reveals that public trust in scientists is still high. A team of 241 researchers conducted the largest post-pandemic study of trust in science, societal ...
Jan. 17, 2025 — Cultural traits -- the information, beliefs, behaviors, customs, and practices that shape the character of a population -- are influenced by conformity, the tendency to align with others, or ...
Jan. 17, 2025 — A new study has found older-looking brains in adults with sickle cell disease, helping to explain the cognitive challenges experienced by such individuals. A brain image from a healthy individual ...
Jan. 17, 2025 — Subtle changes in the brain, detectable through advanced imaging, blood and spinal fluid analysis, happen approximately twenty years before a ...
Jan. 17, 2025 — Neuroscientists have identified that the receptor IL-1R1 plays a critical role in enabling neurons to directly communicate with the immune system. The new study provides the most detailed mapping of ...
Jan. 17, 2025 — Cutting-edge fluorescent cholesterol probes now enable scientists to visualize cholesterol movement and distribution in live cells with unprecedented detail. By combining computer simulations with ...
Jan. 14, 2025 — Waking up does not activate an increase in the release of the stress hormone cortisol. Cortisol does, however, increase in the hours prior to wakening as part of the body's preparation for the next ...
Jan. 14, 2025 — Are humans or machines better at recognizing speech? A new study shows that in noisy conditions, current automatic speech recognition (ASR) systems achieve remarkable accuracy and sometimes even ...
Jan. 16, 2025 — Scientists have discovered a surprising mechanism by which the inherited genetic mutation known to cause Huntington's disease leads to the death of ...