Temporal lobes more of the right responsible for

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Temporal lobes (more of the right): responsible for recognizing faces Damage to the area can mean the inability to perceive faces. Neural Plasticity: the cortex has the ability to reorganize itself in the face of different environment stimulation. Ex. Money finger: an researcher stimulates a money’s finger and found that the sensory neurons responsible for that finger has grown larger. Ex. Stroke victims: constraint-induced therapy: stroke patients often have paralysis of one side of the body and so rely on the other side of the body more, this therapy forces the patients to use their bad side and in most cases, the patients can gain much of the functionality of the paralyzed side back. 15
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Ex: Congenital visual and auditory impairments: the unused part of the brain gets taken over by one of the other sense so people with visual impairments often have superb hearing. Ex. Loss of limb: some patients with lost limbs report feeling sensation in the limbs that are no longer there (phantom limb syndrome) Ex. Hemispherectomy: the removal of one side of the brain, with proper care the patient can carry on close to normal. Ex. Split Brains: when the connection between the left and right hemisphere is severed. They found that in people with this, their right brain will see images from the left eye but will be unable to be aware of what they saw; however, they are able to draw with their left hand what they saw without knowing why they drew it. The idea is that if we can’t say it, we are not conscious of it. Jan. 31, 2012 Chapter 6: Sensation and Perception Sensation: Information detection (sense organs, feature detection) Perception: Information processing (organization and interpretation) Vision: Stimulus is light (a type of electromagnetic wave) Electromagnetic waves are packets of energy given off by all things, particular things that are high in energy (ex. the sun) Packets of electromagnetic radiation oscillate and the degree of oscillation determines the wavelength. Wavelength: the length between two peaks or two troughs The eyes can only pick up the visible spectrum (400nm – 700 nm) Some animals can see ultraviolet lights (bees) or infrared waves (snakes) Mechanisms can be made to detect other wavelengths (radio, X-ray) More oscillation means shorter wavelength (shorter oscillation period means faster frequency) Wavelength of the light determines the hue that we will experience (hue = colour) 16
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Amplitude of the wavelength determines the brightness. A larger amplitude means a brighter colour. Hotter things give off more electromagnetic radiation Objects will absorb certain wavelengths. The colour we see in the wavelength reflected by the object. The eyes: The eyes can detect and transducer electromagnetic radiation: Transduction: the conversion of one form of energy into another form.
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