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Bulletin of the Los Angeles... Sep 1957
Topics: Agnosia; Humans; Prosopagnosia
PubMed: 13472257
DOI: No ID Found -
Journal of Neurology, Neurosurgery, and... May 1959"And what is the nature of this knowledge or recollection? I mean to ask, Whether a person, who having seen or heard or in any way perceived anything, knows not only...
"And what is the nature of this knowledge or recollection? I mean to ask, Whether a person, who having seen or heard or in any way perceived anything, knows not only that, but has a conception of something else which is the subject, not of the same but of some other kind of knowledge, may not be fairly said to recollect that of which he has the conception?""And when the recollection is derived from like things, then another consideration is sure to arise, which is, Whether the likeness in any degree falls short or not of that which is recollected?" "The Philosophy of Plato" Phaedo (the Jowett translation).
Topics: Agnosia; Humans; Male; Philosophy; Prosopagnosia
PubMed: 13655102
DOI: 10.1136/jnnp.22.2.124 -
Cognitive and Behavioral Neurology :... Dec 2006The purpose of this study was to learn if a deficit of finger naming (finger agnosia or anomia) is a sensitive test for Alzheimer disease (AD) and the best means of...
BACKGROUND AND OBJECTIVE
The purpose of this study was to learn if a deficit of finger naming (finger agnosia or anomia) is a sensitive test for Alzheimer disease (AD) and the best means of testing for finger agnosia.
METHODS
The subjects were 38 patients with AD and 10 matched normal controls. All subjects were asked to name the thumb, index, and pinky fingers.
RESULTS
No control subject had trouble naming any of these fingers, but 37% of the AD subjects did. When AD patients had difficulty with finger naming, they always had trouble naming the index finger.
CONCLUSIONS
In the absence of stroke, the inability to name the index finger seems as an indicator of dementia. Although brief, this test is not extremely sensitive test for AD.
Topics: Agnosia; Alzheimer Disease; Fingers; Humans; Matched-Pair Analysis; Neuropsychological Tests; Reference Values; Sensitivity and Specificity; Verbal Behavior; Vocabulary
PubMed: 17159616
DOI: 10.1097/01.wnn.0000213921.02891.1b -
Archives of Neurology Aug 1962
Topics: Agnosia; Humans; Prosopagnosia
PubMed: 13905818
DOI: 10.1001/archneur.1962.04210020014002 -
Applied Neuropsychology. Adult 2012The purpose of this study was to examine the presence of finger agnosia in patients with Alzheimer's disease (AD) and to determine if level of finger agnosia was related...
The purpose of this study was to examine the presence of finger agnosia in patients with Alzheimer's disease (AD) and to determine if level of finger agnosia was related to cognitive impairment. Finger agnosia is a sensitive measure of cerebral impairment and is associated with neurofunctional areas implicated in AD. Using a standardized and norm-referenced approach, results indicated that patients with AD evidenced significantly decreased performance on tests of bilateral finger agnosia compared with healthy age-matched controls. Finger agnosia was predictive of cognitive dysfunction on four of seven domains, including: Crystallized Language, Fluid Processing, Associative Learning, and Processing Speed. Results suggest that measures of finger agnosia, a short and simple test, may be useful in the early detection of AD.
Topics: Aged; Aged, 80 and over; Agnosia; Alzheimer Disease; Cognition Disorders; Female; Humans; Male; Middle Aged; Neuropsychological Tests
PubMed: 23373578
DOI: 10.1080/09084282.2011.643949 -
Mayo Clinic Proceedings Feb 1991
Topics: Agnosia; Diagnosis, Differential; Humans; Memory Disorders; Perceptual Disorders; Somatosensory Cortex; Touch
PubMed: 1994140
DOI: 10.1016/s0025-6196(12)60495-9 -
Fortschritte Der Neurologie-Psychiatrie Feb 2019
Topics: Agnosia; Blindness, Cortical; Humans; Mental Competency; Metacognition; Self Concept
PubMed: 30802919
DOI: 10.1055/a-0802-9679 -
Cortex; a Journal Devoted To the Study... Jun 2018Periventricular leukomalacia (PVL) is characterized by focal necrosis at the level of the periventricular white matter, often observed in preterm infants. PVL is...
Periventricular leukomalacia (PVL) is characterized by focal necrosis at the level of the periventricular white matter, often observed in preterm infants. PVL is frequently associated with motor impairment and with visual deficits affecting primary stages of visual processes as well as higher visual cognitive abilities. Here we describe six PVL subjects, with normal verbal IQ, showing orientation perception deficits in both the haptic and visual domains. Subjects were asked to compare the orientation of two stimuli presented simultaneously or sequentially, using both a two alternative forced choice (2AFC) orientation-discrimination and a matching procedure. Visual stimuli were oriented gratings or bars or collinear short lines embedded within a random pattern. Haptic stimuli comprised two rotatable wooden sticks. PVL patients performed at chance in discriminating the oblique orientation, both for visual and haptic stimuli. Moreover when asked to reproduce the oblique orientation, they often oriented the stimulus along the symmetric mirror orientation. The deficit generalized to stimuli varying in many low level features, was invariant for spatiotopic object orientation, and also occurred for sequential presentations. The deficit was specific to oblique orientations, and not for horizontal or vertical stimuli. These findings show that PVL can affect a specific network involved with the supramodal perception of mirror symmetry orientation.
Topics: Adolescent; Agnosia; Child; Female; Humans; Leukomalacia, Periventricular; Male; Orientation; Space Perception; Young Adult
PubMed: 29655042
DOI: 10.1016/j.cortex.2018.03.010 -
Journal of Neurology, Neurosurgery, and... Jan 2002
Topics: Agnosia; Alzheimer Disease; Diagnosis, Differential; Humans; Lewy Body Disease; Mental Status Schedule; Orientation; Psychomotor Disorders
PubMed: 11784847
DOI: 10.1136/jnnp.72.1.129 -
Journal of Neurology, Neurosurgery, and... Sep 1997The following case report presents a patient exhibiting Gerstmann syndrome accompanied by toe agnosia. A 72 year old right handed woman had a focal lesion in the angular...
The following case report presents a patient exhibiting Gerstmann syndrome accompanied by toe agnosia. A 72 year old right handed woman had a focal lesion in the angular gyrus of the left hemisphere which was caused by a glioblastoma multiforme. The first symptom she had complained of was severe headache. Standardised neuropsychological tests of intelligence, memory, attention, fluency, apraxia, and language functions as well as tests for the assessment of agraphia, acalculia, right-left disorientation, and digit agnosia were performed. The patient displayed all four symptoms of the Gerstmann syndrome--namely, agraphia, acalculia, right-left disorientation, and finger agnosia. The patient did not display aphasia, constructional apraxia, or any other neuropsychological impairment. In addition to the four symptoms of the Gerstmann syndrome an agnosia of the toes was found. Further studies should determine whether finger agnosia in Gerstmann syndrome is usually accompanied by toe agnosia. Finger agnosia in the context of this syndrome may be better named digit agnosia.
Topics: Aged; Agnosia; Female; Fingers; Gerstmann Syndrome; Humans; Magnetic Resonance Imaging; Neuropsychological Tests; Spatial Behavior; Toes
PubMed: 9328265
DOI: 10.1136/jnnp.63.3.399