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Hyperphantasia is the condition of having extremely vivid mental imagery. [1] It is the opposite condition to aphantasia, where mental visual imagery is not present. [2] [3] The experience of hyperphantasia is more common than aphantasia [4] [5] and has been described as being "as vivid as real seeing". [4]
Monotropic (hyperfocus) and polytropic learning. Hyperfocus is an intense form of mental concentration or visualization that focuses consciousness on a subject, topic, or task. . In some individuals, various subjects or topics may also include daydreams, concepts, fiction, the imagination, and other objects of the mi
Directed attention fatigue (DAF) is a neuropsychological phenomenon that results from overuse of the brain’s inhibitory attention mechanisms, which handle incoming distractions while maintaining focus on a specific task. The greatest threat to a given focus of attention is competition from other stimuli that can cause a
Attention deficit hyperactivity disorder (ADHD) [1] is a neurodevelopmental disorder characterized by symptoms of inattention, hyperactivity, impulsivity and emotional dysregulation that are excessive and pervasive, impairing in multiple contexts, and developmentally-inappropriate. [9]
Those with CDS symptoms typically show a later onset of their symptoms than do those with ADHD, perhaps by as much as a year or two later on average. Both groups had similar levels of learning problems and inattention, but CDS children had less externalizing symptoms and higher levels of unhappiness, anxiety/depression, withdrawn behavior, and ...
Many have symptoms of stroke: inability to move one or more limbs, weakness on one side of the face or difficulty speaking. The neurologic deficits related to central venous thromboses does not necessarily affect one side of the body or one arterial or brain territory as is more common "arterial" strokes.
Specifically, experts have claimed that hyperfocusing is an anachronistic behavioral trait that has become maladaptive. These experts note that hyper focusing was advantageous to those in hunter societies, as it conferred superb hunting skills and a prompt response to predators, but that it is not suited to modern life in an industrial society. [4]
An increase in pressure, most commonly due to head injury leading to intracranial hematoma or cerebral edema, can crush brain tissue, shift brain structures, contribute to hydrocephalus, cause brain herniation, and restrict blood supply to the brain. [13] It is a cause of reflex bradycardia. [14]