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Brain Book: Unit1
Sensation & Perception
Hearing:
Information from the ears goes to the temporal cortex at the side of the brain. Here the signals are made into sounds. If you stimulate this part of the brain with an electrode, you will "hear" sounds even if no sound waves go through your ears.
Information from the ears goes to the temporal cortex at the side of the brain. Here the signals are made into sounds. If you stimulate this part of the brain with an electrode, you will "hear" sounds even if no sound waves go through your ears.
Sight:
Information from the eyes goes to the visual cortex at the back of the brain (the occipital lobe). This part of the brain puts the visual information together into pictures. If you stimulate the visual cortex with an electrode, you will "see things" even if you are blindfolded!
Information from the eyes goes to the visual cortex at the back of the brain (the occipital lobe). This part of the brain puts the visual information together into pictures. If you stimulate the visual cortex with an electrode, you will "see things" even if you are blindfolded!
Touch:
Information from the skin goes to the top middle of the brain (the parietal lobe), where the signals are turned into the sensation of touch. This includes heat and cold, texture, pressure, and pain.
Information from the skin goes to the top middle of the brain (the parietal lobe), where the signals are turned into the sensation of touch. This includes heat and cold, texture, pressure, and pain.
Pain in the Brain:
Did you know? The brain itself will not feel pain, or any other sensation, if you touch it-even though it can receive pain signals from other places in the body! This is because it has no pain sensors of its own. This allows brain surgery to be performed without anaesthesia (pain-killer).
Did you know? The brain itself will not feel pain, or any other sensation, if you touch it-even though it can receive pain signals from other places in the body! This is because it has no pain sensors of its own. This allows brain surgery to be performed without anaesthesia (pain-killer).
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