ARAS: Gateway to Human Arousal
An in-depth academic exploration of the ascending reticular activating system (ARAS), covering its neuroanatomy, arousal...
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Psychological Dictionary
2,454 results
Aran–Duchenne Disease: Motor Neuron Pathology
Aran–Duchenne disease (progressive muscular atrophy) is a neurodegenerative disorder characterized by lower motor neuron degeneration,...
November 6, 2026
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Dr. Mohammed Looti
Arago Phenomenon: Night Vision’s Central Blind Spot
The Arago phenomenon is the physiological disappearance of faint objects upon direct central fixation in...
November 6, 2026
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Dr. Mohammed Looti
Arachnophobia: Understanding the Fear of Spiders
Arachnophobia is an intense, irrational, and debilitating fear of spiders and other arachnids, classified clinically...
November 6, 2026
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Dr. Mohammed Looti
Arachnoid Mater: The Brain’s Webbed Shield
The arachnoid mater is the delicate, avascular middle meningeal layer safeguarding the brain and spinal...
November 6, 2026
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Dr. Mohammed Looti
Arachnoid Granulations: Brain CSF Drainage Hubs
Arachnoid granulations are specialized macroscopic projections of the arachnoid mater into dural venous sinuses that...
November 6, 2026
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Dr. Mohammed Looti
Arachnoid Mater: The Brain’s Webbed Shield
The arachnoid mater is the delicate, web-like intermediate meningeal layer that maintains the subarachnoid space,...
November 6, 2026
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Dr. Mohammed Looti
Arachnophobia: The Science of Spider Fear
Explore the comprehensive psychological profile of arachnophobia, examining its evolutionary origins, neurobiological substrates, cognitive mechanisms,...
November 6, 2026
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Dr. Mohammed Looti
Anandamide (AEA): The Bliss Molecule
Arachidonoylethanolamide (AEA), or anandamide, is an endogenous lipid neurotransmitter and cannabinoid receptor agonist that regulates...
November 6, 2026
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Dr. Mohammed Looti
Arachidonic Acid: Master Lipid of Inflammation
Arachidonic acid is a vital polyunsaturated omega-6 fatty acid embedded in cell membranes that acts...
November 6, 2026
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Dr. Mohammed Looti
Autoregressive Model: Forecasting Temporal Dynamics
An autoregressive (AR) model is a fundamental statistical time series framework that estimates an observable...
November 6, 2026
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Dr. Mohammed Looti
Aqueous Humor: The Eye’s Vital Fluid Dynamics
Aqueous humor is the clear, specialized intraocular fluid responsible for maintaining intraocular pressure, providing metabolic...
November 6, 2026
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Dr. Mohammed Looti