Visual agnosia - Revision history

Jmueller at 18:40, 24 April 2008

Jmueller — Thu, 24 Apr 2008 18:40:03 GMT

←Older revision		Revision as of 18:40, 24 April 2008
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	== Visual Agnosia ==		== Visual Agnosia ==
	[http://www.youtube.com/watch?v=rwQpaHQ0hYw Visual Agnosia] is the inability to make sense of what is being viewed. Markedly different from the inability to see completely, or blindness, individuals suffering from Visual Agnosia are able to see objects and describe them in great detail but are unable to process these observations as a whole and name what they are looking at.		[http://www.youtube.com/watch?v=rwQpaHQ0hYw Visual Agnosia] is the inability to make sense of what is being viewed. Markedly different from the inability to see completely, or blindness, individuals suffering from Visual Agnosia are able to see objects and describe them in great detail but are unable to process these observations as a whole and name what they are looking at.
		+	== Object Identification ==
		+	Visual Agnostic patients generally can hold an object while looking at is and name what it is. The combination of tactile information as well as visual information enables them to piece together the complex process of identification. The same holds true for auditory information coupled with visual information.
	== Causes ==		== Causes ==
	Visual Agnosia is generally associated with damage to the posterior occipital or temporal lobes of the brain. Rarely does damage to the retina or optical nerve result in a form of Agnosia. Virgil is an example of an exception to this generalization (Sacks, 1990),		Visual Agnosia is generally associated with damage to the posterior occipital or temporal lobes of the brain. Rarely does damage to the retina or optical nerve result in a form of Agnosia. Virgil is an example of an exception to this generalization (Sacks, 1990),
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	== Dr. P ==		== Dr. P ==
	The Man Who Mistook his Wife for a Hat is a commonly cited source as an example of Visual Agnosia. Dr. P, the patient, who after believing his testing was finished for the afternoon began to look around for his hat in preparation to leave. His face suggested he had found it, and he reached for the hat which was his wife's head and tried to lift it off. He had mistaken his wife for his hat.		The Man Who Mistook his Wife for a Hat is a commonly cited source as an example of Visual Agnosia. Dr. P, the patient, who after believing his testing was finished for the afternoon began to look around for his hat in preparation to leave. His face suggested he had found it, and he reached for the hat which was his wife's head and tried to lift it off. He had mistaken his wife for his hat.
-	~~== Object Identification ==~~	+
-	Visual Agnostic patients generally can hold an object while looking at is and name what it is. The combination of tactile information as well as visual information enables them to piece together the complex process of identification. The same holds true for auditory information coupled with visual information.	+
	== sources ==		== sources ==
	http://ahsmail.uwaterloo.ca/kin356/ventral/visual_agnosia.htm		http://ahsmail.uwaterloo.ca/kin356/ventral/visual_agnosia.htm

Jmueller at 18:25, 24 April 2008

Jmueller — Thu, 24 Apr 2008 18:25:27 GMT

←Older revision		Revision as of 18:25, 24 April 2008
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	[[Category:Neuropsychological syndromes]]		[[Category:Neuropsychological syndromes]]
	== Visual Agnosia ==		== Visual Agnosia ==
-	Visual Agnosia is the inability to make sense of what is being viewed. Markedly different from the inability to see completely, or blindness, individuals suffering from Visual Agnosia are able to see objects and describe them in great detail but are unable to process these observations as a whole and name what they are looking at.	+	[http://www.youtube.com/watch?v=rwQpaHQ0hYw Visual Agnosia] is the inability to make sense of what is being viewed. Markedly different from the inability to see completely, or blindness, individuals suffering from Visual Agnosia are able to see objects and describe them in great detail but are unable to process these observations as a whole and name what they are looking at.
	== Causes ==		== Causes ==
	Visual Agnosia is generally associated with damage to the posterior occipital or temporal lobes of the brain. Rarely does damage to the retina or optical nerve result in a form of Agnosia. Virgil is an example of an exception to this generalization (Sacks, 1990),		Visual Agnosia is generally associated with damage to the posterior occipital or temporal lobes of the brain. Rarely does damage to the retina or optical nerve result in a form of Agnosia. Virgil is an example of an exception to this generalization (Sacks, 1990),

Jmueller at 18:19, 24 April 2008

Jmueller — Thu, 24 Apr 2008 18:19:00 GMT

←Older revision		Revision as of 18:19, 24 April 2008
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	Visual Agnosia is generally associated with damage to the posterior occipital or temporal lobes of the brain. Rarely does damage to the retina or optical nerve result in a form of Agnosia. Virgil is an example of an exception to this generalization (Sacks, 1990),		Visual Agnosia is generally associated with damage to the posterior occipital or temporal lobes of the brain. Rarely does damage to the retina or optical nerve result in a form of Agnosia. Virgil is an example of an exception to this generalization (Sacks, 1990),
	== Virgil ==		== Virgil ==
-	Virgil had his cataracts removed late in life and was finally able to see but was unable to make sense of what he was seeing. For Example the moment the bandages came off ~~VirgilÃ¢ï¿½ï¿½s~~ eyes he explained that ~~Ã¢ï¿½ï¿½there~~ was light, there was movement, there was color, all mixed up, all meaningless, a blur.	+	Virgil had his cataracts removed late in life and was finally able to see but was unable to make sense of what he was seeing. For Example the moment the bandages came off Virgil's eyes he explained that "there was light, there was movement, there was color, all mixed up, all meaningless, a blur."
	== Dr. P ==		== Dr. P ==
-	The Man Who Mistook his Wife for a Hat is a commonly cited source as an example of Visual Agnosia. Dr. P, the patient, who after believing his testing was finished for the afternoon began to look around for his hat in preparation to leave. His face suggested he had found it, and he reached for the hat which was his ~~wifeÃ¢ï¿½ï¿½s~~ head and tried to lift it off. He had mistaken his wife for his hat.	+	The Man Who Mistook his Wife for a Hat is a commonly cited source as an example of Visual Agnosia. Dr. P, the patient, who after believing his testing was finished for the afternoon began to look around for his hat in preparation to leave. His face suggested he had found it, and he reached for the hat which was his wife's head and tried to lift it off. He had mistaken his wife for his hat.
	== Object Identification ==		== Object Identification ==
	Visual Agnostic patients generally can hold an object while looking at is and name what it is. The combination of tactile information as well as visual information enables them to piece together the complex process of identification. The same holds true for auditory information coupled with visual information.		Visual Agnostic patients generally can hold an object while looking at is and name what it is. The combination of tactile information as well as visual information enables them to piece together the complex process of identification. The same holds true for auditory information coupled with visual information.
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	http://ahsmail.uwaterloo.ca/kin356/ventral/visual_agnosia.htm		http://ahsmail.uwaterloo.ca/kin356/ventral/visual_agnosia.htm

-	Sacks, O.. (1990). ~~[http://blackboard.rollins.edu/courses/1/10301.PSY324.1.200801/content/_171735_1/Sacks___Anthropologist_on_Mars___To_See_and_Not_See.pdf~~ To See or Not to See ].	+	Sacks, O.. (1990). To See or Not to See.

	Sacks, O.. (1998). The Man Who Mistook his Wife for a Hat.		Sacks, O.. (1998). The Man Who Mistook his Wife for a Hat.
		+
		+	--[[User:Jmueller\|Jmueller]] 14:19, 24 April 2008 (EDT)

Jmueller at 18:16, 24 April 2008

Jmueller — Thu, 24 Apr 2008 18:16:51 GMT

←Older revision		Revision as of 18:16, 24 April 2008
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	Visual Agnosia is generally associated with damage to the posterior occipital or temporal lobes of the brain. Rarely does damage to the retina or optical nerve result in a form of Agnosia. Virgil is an example of an exception to this generalization (Sacks, 1990),		Visual Agnosia is generally associated with damage to the posterior occipital or temporal lobes of the brain. Rarely does damage to the retina or optical nerve result in a form of Agnosia. Virgil is an example of an exception to this generalization (Sacks, 1990),
	== Virgil ==		== Virgil ==
-	Virgil had his cataracts removed late in life and was finally able to see but was unable to make sense of what he was seeing. For Example the moment the bandages came off ~~Virgilâ��s~~ eyes he explained that ~~â��there~~ was light, there was movement, there was color, all mixed up, all meaningless, a blur.	+	Virgil had his cataracts removed late in life and was finally able to see but was unable to make sense of what he was seeing. For Example the moment the bandages came off VirgilÃ¢ï¿½ï¿½s eyes he explained that Ã¢ï¿½ï¿½there was light, there was movement, there was color, all mixed up, all meaningless, a blur.
	== Dr. P ==		== Dr. P ==
-	The Man Who Mistook his Wife for a Hat is a commonly cited source as an example of Visual Agnosia. Dr. P, the patient, who after believing his testing was finished for the afternoon began to look around for his hat in preparation to leave. His face suggested he had found it, and he reached for the hat which was his ~~wifeâ��s~~ head and tried to lift it off. He had mistaken his wife for his hat.	+	The Man Who Mistook his Wife for a Hat is a commonly cited source as an example of Visual Agnosia. Dr. P, the patient, who after believing his testing was finished for the afternoon began to look around for his hat in preparation to leave. His face suggested he had found it, and he reached for the hat which was his wifeÃ¢ï¿½ï¿½s head and tried to lift it off. He had mistaken his wife for his hat.
	== Object Identification ==		== Object Identification ==
	Visual Agnostic patients generally can hold an object while looking at is and name what it is. The combination of tactile information as well as visual information enables them to piece together the complex process of identification. The same holds true for auditory information coupled with visual information.		Visual Agnostic patients generally can hold an object while looking at is and name what it is. The combination of tactile information as well as visual information enables them to piece together the complex process of identification. The same holds true for auditory information coupled with visual information.
	== sources ==		== sources ==
	http://ahsmail.uwaterloo.ca/kin356/ventral/visual_agnosia.htm		http://ahsmail.uwaterloo.ca/kin356/ventral/visual_agnosia.htm
-	Sacks, O.. (1990). To See or Not to See.	+
		+	Sacks, O.. (1990). [http://blackboard.rollins.edu/courses/1/10301.PSY324.1.200801/content/_171735_1/Sacks___Anthropologist_on_Mars___To_See_and_Not_See.pdf To See or Not to See ].
		+
	Sacks, O.. (1998). The Man Who Mistook his Wife for a Hat.		Sacks, O.. (1998). The Man Who Mistook his Wife for a Hat.

Jmueller at 18:15, 24 April 2008

Jmueller — Thu, 24 Apr 2008 18:15:19 GMT

←Older revision		Revision as of 18:15, 24 April 2008
Line 1:		Line 1:
	[[Category:Neuropsychological syndromes]]		[[Category:Neuropsychological syndromes]]
		+	== Visual Agnosia ==
		+	Visual Agnosia is the inability to make sense of what is being viewed. Markedly different from the inability to see completely, or blindness, individuals suffering from Visual Agnosia are able to see objects and describe them in great detail but are unable to process these observations as a whole and name what they are looking at.
		+	== Causes ==
		+	Visual Agnosia is generally associated with damage to the posterior occipital or temporal lobes of the brain. Rarely does damage to the retina or optical nerve result in a form of Agnosia. Virgil is an example of an exception to this generalization (Sacks, 1990),
		+	== Virgil ==
		+	Virgil had his cataracts removed late in life and was finally able to see but was unable to make sense of what he was seeing. For Example the moment the bandages came off Virgilâ��s eyes he explained that â��there was light, there was movement, there was color, all mixed up, all meaningless, a blur.
		+	== Dr. P ==
		+	The Man Who Mistook his Wife for a Hat is a commonly cited source as an example of Visual Agnosia. Dr. P, the patient, who after believing his testing was finished for the afternoon began to look around for his hat in preparation to leave. His face suggested he had found it, and he reached for the hat which was his wifeâ��s head and tried to lift it off. He had mistaken his wife for his hat.
		+	== Object Identification ==
		+	Visual Agnostic patients generally can hold an object while looking at is and name what it is. The combination of tactile information as well as visual information enables them to piece together the complex process of identification. The same holds true for auditory information coupled with visual information.
		+	== sources ==
		+	http://ahsmail.uwaterloo.ca/kin356/ventral/visual_agnosia.htm
		+	Sacks, O.. (1990). To See or Not to See.
		+	Sacks, O.. (1998). The Man Who Mistook his Wife for a Hat.

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Admin — Fri, 11 Jan 2008 20:57:00 GMT

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[[Category:Neuropsychological syndromes]]