Diffuse axonal injury (DAI) is a common and fatal type of brain injury caused by shear forces that damage axons. It is difficult to diagnose and can result in unconsciousness and severe impairment. Treatment involves supportive care and therapy, with varying prognosis and costs. Diffuse axonal injury (DAI) is a type of brain injury that […]
Diffuse reflection scatters light off a surface, allowing human eyes to see an object. The degree of reflection depends on the surface’s characteristics. The absorption of light by the surface determines reflection, and the color of an object is determined by its diffuse reflection. Metals, gases, and glass do not have good diffuse reflectivity, while […]
Diffuse esophageal spasm causes uncoordinated contractions of the esophagus, making it difficult to swallow food and drink. The cause is unknown, but nerve damage and GERD may contribute. Symptoms include chest pain and a burning sensation. Diagnosis involves a manometry test and further tests such as a CT scan or barium swallow. Treatment includes nitroglycerin […]
Diffuse alopecia is a type of hair loss disorder that causes thinning hair all over the scalp, face, or body. It is suspected to be an inherited autoimmune disease and can be treated with corticosteroid injections, topical creams, or surgery. Alopecia areata is related to an autoimmune condition that causes hair loss in round bald […]
A diffuse cervical bulge occurs when the annulus tears and soft nucleus material protrudes from the disc. Symptoms include pain, tingling, and numbness. Diagnosis is made through a physical exam and MRI. Treatment includes anti-inflammatory drugs, injections, physical therapy, and surgery. Prevention includes proper lifting techniques, maintaining a healthy weight, exercise, and avoiding smoking. The […]
The diffusion activation model explains how related concepts are processed in working memory. Semantic long-term memory consists of interconnected concepts, and when one is activated, related concepts are also activated, incentivizing recall. The strength of connections between ideas affects recall speed, and individual experience influences semantic categories. Diffuse activation is a model of working memory, […]
