Blind Dogs can map and "see" by smells and hearing
Blind Dogs can map and "see" by smells and hearing
{The biology for humans (probably also dogs) is briefly described after the pictures of this page.}
{The biology for humans (probably also dogs) is briefly described after the pictures of this page.}
Figure 1 Human Outdoors in Springtime
The human was assumed to have normal distance vision, and color vision. Dog color vision was illustrated on a separate page of this Site.
Figure 2 Blind Dog Outdoors in Springtime, same day and place
Note that the sky seems black because no sound comes from there. Objects closer to a barking dog (or noise) seem brighter, and places with sounds sources such as TVs, radios, kids etc also seem brighter. Moving items such as leaves blur or “glitter.” Winds scatter and “bend” sounds and that blurs the portions farther away of scenes.
Figure 3 Human Indoors Scene
A carpeted room with wood furniture and a leather seat chair.
Figure 4 Blind Dog Indoors Scene
Soft fabric surfaces such as the carpet and drapes that absorb sound well and poorly reflect it, seem “darker.” Objects more distant from the sources of sounds seem darker. Wood and polished leather reflect sound better than fabrics and absrb less energy from sound, so they seem brighter.
Figure 5 Blind Dog View of a Suburban Scene
Blind Dog Suburban Snow Scene - Overall
Snow absorbs sound very well (unless it has a frozen crust on it) so it mostly would seem darker, and the objects that would usually be seen without snow are hidden inside or behind the snow. Glass of a deck door, on the right, is an excellent reflector of sound so can reflect the “sound scene” much as it would light. Sky in the distance (without wind or storms) would appear black where there were no clouds, birds or aircraft, et al.
Snow absorbs sound very well (unless it has a frozen crust on it) so it mostly would seem darker, and the objects that would usually be seen without snow are hidden inside or behind the snow. Glass of a deck door, on the right, is an excellent reflector of sound so can reflect the “sound scene” much as it would light. Sky in the distance (without wind or storms) would appear black where there were no clouds, birds or aircraft, et al.
Figure 6 Blind Dog View if Staring
As illustrated, if a dog stared toward a distant place, the things close to the dog’s “line of sight” would seem sharper because a dog’s ears would best get the sounds from the directions where the ears were pointed. Scanning would be easily done by a dog moving its head about crosswise and un and down in elevation, to see things of interest.
Figure 7 Blind Dog and Open Snowy Field
Dog view of an open snowy field and a big piece of equipment.
Figure 8 Blind Dog's Snowy Field on Gusting Windy Day
Gusting wind, especially with blowing snow, can scatter and absorb sounds, so a scene probably would seem darker and blurred, - it might seem an unreal anxiety making “foggy mess.”
Large solid things such as fences or big equipment might be detected by a blind barking dog, through a blowing "fog".
Large solid things such as fences or big equipment might be detected by a blind barking dog, through a blowing "fog".
Synesthesia [Edited - for blind and deaf dogs] Source: Wikipedia, the free encyclopedia Feb 2011
Synesthesia technically it is a neurologically-based condition in which detections-stimulation of a sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. Humans who have such experiences are known as “synesthetes”. [Some are well paid“pilots” using HUD devices (Head Up Displays)! Others who use them probably are blind, deaf and blind-deaf dogs.]… It’s estimated that it could possibly be as prevalent as 1 in 23 persons over its variants. Synesthesia is sometimes reported by humans as a result of blindness or deafness. … sensory linkings such as "sound ->vision" or "touch -> hearing". Psychological research demonstrated that the experiences can have behavior consequences, while functional neuroimaging studies identified differences in patterns of brain activation. Psychologists and neuro-scientists study it for its inherent interest, and for the insights it may give into thinking and perceptual processes that occur in all. … most report their experiences are neutral, or even pleasant. Rather, like color blindness or perfect pitch, synesthesia is a difference in perceptual experience and the term just points at the brain basis of the difference. … For example, sound-color synesthetes, as a group, tend to see lighter colors for higher sounds[20]… individuals report differing triggers for their sensations, and differing intensities of experiences. ... There were common elements. ... Neurologist Richard Cytowic identifies the following diagnostic criteria:
- Synesthesia is involuntary and automatic.
- perceptions often have a sense of "location.”… "looking at" or "going to" a particular place to attend to the experience.
- consistent and generic
- memorable.
- laden with affect.
… Synesthetes often reported that they were unaware their experiences were unusual [unless new or] until they realized other people did not have them... Most report that their experiences are pleasant or neutral, although, in rare cases, they report that their experiences can lead to a some sensory overload (confusion.) ... Most report it as a gift—an additional "hidden" sense—something they would not want to miss. Most become aware in their childhood. Some apply this in daily life ... Synesthesia can occur between nearly any two senses [Sound->sight] or perceptual modes. ... Sound → color synesthesia … voice, music, and environment sounds such as clattering dishes or dog barks [Thunder storms?] trigger color and simple shapes that arise, move around, and then fade when the sound ends. Sound often changes the perceived hue, brightness, scintillation, and directional movement… People rarely agree on what color a given sound is. .…. groups say that loud tones are brighter than soft tones and that lower tones are darker than higher tones [i.e. can form textures in the reflections from complex material and surfaces]
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Synesthesia technically it is a neurologically-based condition in which detections-stimulation of a sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. Humans who have such experiences are known as “synesthetes”. [Some are well paid“pilots” using HUD devices (Head Up Displays)! Others who use them probably are blind, deaf and blind-deaf dogs.]… It’s estimated that it could possibly be as prevalent as 1 in 23 persons over its variants. Synesthesia is sometimes reported by humans as a result of blindness or deafness. … sensory linkings such as "sound ->vision" or "touch -> hearing". Psychological research demonstrated that the experiences can have behavior consequences, while functional neuroimaging studies identified differences in patterns of brain activation. Psychologists and neuro-scientists study it for its inherent interest, and for the insights it may give into thinking and perceptual processes that occur in all. … most report their experiences are neutral, or even pleasant. Rather, like color blindness or perfect pitch, synesthesia is a difference in perceptual experience and the term just points at the brain basis of the difference. … For example, sound-color synesthetes, as a group, tend to see lighter colors for higher sounds[20]… individuals report differing triggers for their sensations, and differing intensities of experiences. ... There were common elements. ... Neurologist Richard Cytowic identifies the following diagnostic criteria:
- Synesthesia is involuntary and automatic.
- perceptions often have a sense of "location.”… "looking at" or "going to" a particular place to attend to the experience.
- consistent and generic
- memorable.
- laden with affect.
… Synesthetes often reported that they were unaware their experiences were unusual [unless new or] until they realized other people did not have them... Most report that their experiences are pleasant or neutral, although, in rare cases, they report that their experiences can lead to a some sensory overload (confusion.) ... Most report it as a gift—an additional "hidden" sense—something they would not want to miss. Most become aware in their childhood. Some apply this in daily life ... Synesthesia can occur between nearly any two senses [Sound->sight] or perceptual modes. ... Sound → color synesthesia … voice, music, and environment sounds such as clattering dishes or dog barks [Thunder storms?] trigger color and simple shapes that arise, move around, and then fade when the sound ends. Sound often changes the perceived hue, brightness, scintillation, and directional movement… People rarely agree on what color a given sound is. .…. groups say that loud tones are brighter than soft tones and that lower tones are darker than higher tones [i.e. can form textures in the reflections from complex material and surfaces]
To return to the Top of the page click here