(n.) The absence or loss of the power of expressing ideas by written signs. It is one form of aphasia.
Example Sentences:
(1) Unlike previously reported patients with subcortical infarcts, these cases indicate that small lesions limited to the posterior capsuloputaminal area can cause aphasia and agraphia as well as dysarthria.
(2) In "alexia without agraphia" (pure alexia), the intact right visual cortex is disconnected from the left parietal language center by a lesion in the splenium.
(3) The present investigation was designed to overcome the omissions of previous studies, and examined the ability to read 46 single phonograms and 46 single ideograms aloud in four groups of sufficiently large numbers of patients; namely, seven pure alexics, 23 Broca aphasics, 13 Wernicke aphasics, and seven patients with alexia and agraphia.
(4) The authors report the clinical findings and CT-scanning results in two cases of alexia without agraphia and review the literature on this subject.
(5) An adult patient with literal alexia, agraphia, slight anomia, and dyscalculia due to a left hemisphere infarct showed lack of sequential skills while pattern recognition remained intact.
(6) We report a single case of pure apraxic agraphia in which defective letter imagery was evident.
(7) This supports the contention that DA in adults may be divided into phonological and lexical groups and further supports the two-system hypothesis for linguistic agraphia.
(8) A 75-year-old right-handed woman, after a probable cerebral infarct, developed an irregular constriction of the visual fields, a left-sided agraphia, and an anomia for objects in the left hand.
(9) Dissociative improvement of alexia compared with agraphia in this case could be explained by the fact that the lesion was in close contact with the occipital lobe and that he also had pure alexia in the early stage.
(10) The errors of agraphia were not correlated with measures of aphasia or psychometric measures of language and motor performance.
(11) All eventually developed alexia, agraphia, visual agnosia, and components of Balint's, Gerstmann's, and transcortical sensory aphasia syndromes.
(12) Complete receptive and expressive aphasia, inability to repeat, agraphia, and alexia were elicited, but visual memory was preserved, and no constructional apraxia was noted.
(13) We now report a case of lexical agraphia following a discrete lesion of the left precentral gyrus.
(14) Many cases of agraphia from acquired cerebral lesions may be divided into two groups, phonological and lexical, suggesting two dissociable spelling systems.
(15) Less frequent with left-sided lesions they can be associated with the alexia without agraphia syndrome (with or without color naming deficit or hemifield loss).
(16) Comparing clinico-pathological findings of the 31 known autopsy cases, it was proposed that the lesion of the left spleno-lingual system produces alexia without agraphia but it may ameliorate.
(17) Alexia without agraphia occurred in a 41-year-old man suffering from a left occipital brain tumor.
(18) Lesions of the dominant (left) angular gyrus are associated with the syndromes of alexia with agraphia.
(19) We conclude that agraphia in AD can be variously determined and that agraphia is not a reliable marker for familial disease.
(20) The word formations (paragraphias) due to primary agraphia do not bear close phonetical resemblances, whereas word formations by dyslectic persons are plainly phonetical.
Loss
Definition:
(v. t.) The act of losing; failure; destruction; privation; as, the loss of property; loss of money by gaming; loss of health or reputation.
(v. t.) The state of losing or having lost; the privation, defect, misfortune, harm, etc., which ensues from losing.
(v. t.) That which is lost or from which one has parted; waste; -- opposed to gain or increase; as, the loss of liquor by leakage was considerable.
(v. t.) The state of being lost or destroyed; especially, the wreck or foundering of a ship or other vessel.
(v. t.) Failure to gain or win; as, loss of a race or battle.
(v. t.) Failure to use advantageously; as, loss of time.
(v. t.) Killed, wounded, and captured persons, or captured property.
(v. t.) Destruction or diminution of value, if brought about in a manner provided for in the insurance contract (as destruction by fire or wreck, damage by water or smoke), or the death or injury of an insured person; also, the sum paid or payable therefor; as, the losses of the company this year amount to a million of dollars.
Example Sentences:
(1) Tryptic digestion of the membranes caused complete disappearance of the binding activity, but heat-treatment for 5 min at 70 degrees C caused only 40% loss of activity.
(2) These studies, in addition to demonstrating that the placenta contains TRH deamidase activity, suggest that losses of fetal TRH through the placenta are not large.
(3) Our results indicate that increasing the delay for more than 8 days following irradiation and TCD syngeneic BMT leads to a rapid loss of the ability to achieve alloengraftment by non-TCD allogeneic bone marrow.
(4) Even with hepatic lipase, phospholipid hydrolysis could not deplete VLDL and IDL of sufficient phospholipid molecules to account for the loss of surface phospholipid that accompanies triacylglycerol hydrolysis and decreasing core volume as LDL is formed (or for conversion of HDL2 to HDL3).
(5) Histological studies of nerves 2 years following irradiation demonstrated loss of axons and myelin, with a corresponding increase in endoneurial, perineurial, and epineurial connective tissue.
(6) The stages of mourning involve cognitive learning of the reality of the loss; behaviours associated with mourning, such as searching, embody unlearning by extinction; finally, physiological concomitants of grief may influence unlearning by direct effects on neurotransmitters or neurohormones, such as cortisol, ACTH, or norepinephrine.
(7) Moreover, in DCVC-treated cells the mitochondria could not be stained with rhodamine-123, indicating severe mitochondrial damage and loss of membrane potential.
(8) Adenosine diphosphate (ADP) afforded significant protection only at the very highest concentration (5.0 mM); inorganic pyrophosphate (PPi) did not protect against loss of latency at any concentration.
(9) The west Africa Ebola epidemic “Few global events match epidemics and pandemics in potential to disrupt human security and inflict loss of life and economic and social damage,” he said.
(10) Thus, it appears that neuronal loss may account for up to roughly half of the striatal D2 receptor loss during aging.
(11) Hearing loss at 8 kHz would shorten the I-V interval, while a loss at 4 kHz would be expected to lengthen the interval.
(12) It is concluded the decrease in cellular volume associated with substitution of serosal gluconate for Cl results in a loss of highly specific Ba2+-sensitive K+ conductance channels from the basolateral plasma membrane.
(13) With prolonged ischemia, it is only transient and is followed by a gradual loss of the adenylyl cyclase activity.
(14) A murine keratinocyte cell line that is resistant to the growth-inhibitory effects of transforming growth factor beta 1 (TGF beta 1) was examined for differential gene expression patterns that may be related to the mechanism of the loss of TGF beta 1 responsiveness.
(15) Periodontal disease activity is defined clinically by progressive loss of probing attachment and radiographically by progressive loss of alveolar bone.
(16) But not only did it post a larger loss than expected, Amazon also projected 7% to 18% revenue growth over the busiest shopping period of the year, a far cry from the 20%-plus pace that had convinced investors to overlook its persistent lack of profit in the past.
(17) The findings confirm and quantitate the severe atrophy of the neostriatum, in addition to demonstrating a severe loss of cerebral cortex and subcortical white matter in HD.
(18) We could do with similar action to cut out botnets and spam, but there aren't any big-money lobbyists coming to Mandelson pleading loss of business through those.
(19) The triad of epigastric pain unrelieved by antacids, bilious vomiting, and weight loss, particularly after a gastric operation should make one suspect this syndrome.
(20) The temporary loss of a family member through deployment brings unique stresses to a family in three different stages: predeployment, survival, and reunion.