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The eyes are always affected, and most people have impaired vision. During an eye examination, areas with less pigment (retinal lacunae) appear as white spots in the fundus, which is due to the absence of retinal pigment cells and other structures in these areas. If the lacunae are located in the macula, they affect acuity.
Lacuna (manuscripts), a gap in a manuscript, inscription, text, painting, or musical work Great Lacuna , a lacuna of eight leaves in the Codex Regius where there was heroic Old Norse poetry Lacuna (music) , an intentional, extended passage in a musical work during which no notes are played
Psychology Lacunar amnesia is the loss of memory about a specific event. This specific form of amnesia is caused by brain damage in the limbic system which is responsible for our memories and emotions.
Location of infarct Presentation Pure motor stroke/hemiparesis (most common lacunar syndrome: 33–50%) posterior limb of the internal capsule, basilar part of pons, corona radiata It is marked by hemiparesis or hemiplegia that typically affects the face, arm, or leg of the side of the body opposite the location of the infarct.
The lacuna model is a tool for unlocking culture differences or missing "gaps" in text (in the further meaning). The lacuna model was established as a theory by Jurij Sorokin and Irina Markovina (Russia), further developed by Astrid Ertelt-Vieth and Hartmut Schröder (Germany) and practical research tested in ethnopsycholinguistics (Igor Panasiuk 2000 and 2005), Russian studies (Vladimir ...
The Stiles–Crawford Effect is quantified as a function of distance (d) away from the center of the pupil using the following equation: () =,where η is the relative luminance efficiency, and d is defined as positive on the temporal side of the pupil and negative on the nasal side of the pupil.
The lacuna are situated between the lamellae, and consist of a number of oblong spaces. In an ordinary microscopic section, viewed by transmitted light, they appear as fusiform opaque spots. Each lacuna is occupied during life by a branched cell, termed an osteocyte, bone-cell or bone-corpuscle.
Lacunarity, from the Latin lacuna, meaning "gap" or "lake", is a specialized term in geometry referring to a measure of how patterns, especially fractals, fill space, where patterns having more or larger gaps generally have higher lacunarity. Beyond being an intuitive measure of gappiness, lacunarity can quantify additional features of patterns ...