Kinesthesis is the sense of the position and movement of body parts. Through kinesthesis, people know where all the parts of their bodies are and how they are moving. Receptors for kinesthesis are located in the muscles, joints, and tendons. Show
The sense of balance or equilibrium provides information about where the body exists in space. The sense of balance tells people whether they are standing up, falling in an elevator, or riding a roller coaster. The sensory system involved in balance is called the vestibular system. The main structures in the vestibular system are three fluid-filled tubes called semicircular canals, which are located in the inner ear. As the head moves, the fluid in the semicircular canals moves too, stimulating receptors called hair cells, which then send impulses to the brain. Presentation on theme: "Sensation and Perception Chapter 4"— Presentation transcript: 1 Sensation and Perception Chapter 4
2 Sensation - the stimulation of sensory receptors and the transmission of sensory information to the central nervous system.
3 Sensory receptors are located in sensory organs like the eyes and ears.
4 Absolute Threshold - the weakest amount of a stimulus that can be sensed. (Ex: a hearing test, the faintest beep you can hear) This is different for everyone. Very different in animals.
5 Difference Threshold - the minimum amount of difference that can be detected between two stimuli. (Ex: the difference between to very similar paint chips)
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Signal-Detection Theory - a method of distinguishing sensory stimuli that takes into account not only their strengths but also such elements as the setting, your physical state, mood etc. 7 (Ex: your food has little taste when you have
a head cold) 8 Sensory Adaptation - the process by which we become more sensitive to weak stimuli and less
sensitive to unchanging stimuli. (Ex: eyes adapting to darkness, getting used to certain sounds) 9 The Eye Pupil -
opening in the eye that lets in light. The darker it is the more the pupil opens to let in more light. Lens - adjusts to the distance of objects by changing its thickness. 10 Retina - sensitive surface that acts like film in a
camera. 11 Blind Spot - part of the eye where the optic nerve leaves the eye 12 Cones - photoreceptor that allows us to see color. 13 The Ear Outer Ear, Middle Ear and Inner Ear Inner Ear Cochlea -tube that contains neurons and fluids
14 Auditory nerve - transmits neural impulses to the brain
15 Conductive Deafness - occurs because of damage to the middle ear
16 Other Senses Smell Olfactory Nerve - sends info about odors to the brain Taste - As you get older you may lose your sense of smell which takes away from taste.
17 Skin Senses (Touch) Pressure, Temperature, Pain Gate Theory - only a certain amount of info can be processed by the nervous system at a time.
18 This is why if you rub an injury it makes it feel better because the messages are competing for the brain’s attention. The pain message may not
be getting to the brain. 19 Many people experience pain in a limb that is no longer there 20 Body Senses Vestibular Sense - tells you whether you are physically upright without having to use your eyes. 21 Kinesthesis - the sense that informs people about the position and motion of their bodies. Is the sense that informs people about the position and motion of their body?Kinesthesis is the sense of the position and movement of body parts. Through kinesthesis, people know where all the parts of their bodies are and how they are moving. Receptors for kinesthesis are located in the muscles, joints, and tendons.
What body senses allow us to stand upright and coordinate our movements?Vestibular (Movement): the movement and balance sense, which gives us information about where our head and body are in space. Helps us stay upright when we sit, stand, and walk. Proprioception (Body Position): the body awareness sense, which tells us where our body parts are relative to each other.
Is the sense of equilibrium that informs us about our bodies positions relative to gravity?The vestibular sense tells us about balance, about where we are in relation to gravity, and about acceleration or deceleration.
What is the process by which we become more sensitive to weak stimuli and less sensitive to unchanging stimuli?sensory adaptation. the process by which people become more sensitive to weak stimuli and less sensitive to unchanging stimuli.
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Is the sense that informs people about the position and motion of their bodies?
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