Affiliations: Department of Rehabilitation, Hakujuji Hospital,
Japan | Department of Psychology, Meisei University,
Japan | Department of Rehabilitation, Fukuoka Tokushukai
Hospital, Japan | Department of Neurology, Hakujuji Hospital,
Japan
Note: [] Corresponding author: Akiko Takaiwa, Department of
Rehabilitation, Hakujuji Hospital, 3-2-1 Isimaru Nishi-ku Fukuoka, Japan
819-8511. Tel.: +81 92 891 2511; Fax: +81 92 881 4491
Abstract: We report the case of a 79-year-old female with visual agnosia due
to brain infarction in the left posterior cerebral artery. She could recognize
objects used in daily life rather well by touch (the number of objects
correctly identified was 16 out of 20 presented objects), but she could not
recognize them as well by vision (6 out of 20). In this case, it was expected
that she would recognize them well when permitted to use touch and vision
simultaneously. Our patient, however, performed poorly, producing 5 correct
answers out of 20 in the Vision-and-Touch condition. It would be natural to
think that visual capture functions when vision and touch provide
contradictory information on concrete positions and shapes. However, in the
present case, it functioned in spite of the visual deficit in recognizing
objects. This should be called radical visual capture. By presenting detailed
descriptions of her symptoms and neuropsychological and neuroradiological data,
we clarify the characteristics of this type of capture.
