Bell Work How does Gestalt psychology apply to vision?
“Touch” Somatosensory Senses
Transduction Starts in bottom layer of skin – Dermis Pressure and heat = mechanical energy Lips & Fingertips have high concentrations Message goes to spinal cord Spinal cord to medulla to thalamus to parietal lobe
Somatosensory “Touch” Some areas more sensitive More nerve endings Temperature Pain Pressure Some areas more sensitive More nerve endings
“Body” Senses
Close Your Eyes You can tell you’re sitting up. You can tell you’re sitting down. You can tell if you’re laying on your back.
Vestibular Tells us where our body is oriented in space. Our sense of balance. Located in our semicircular canals in our ears. Sense of balance and spatial orientation Vertigo
Transduction Movement of fluids in ear (canals) tells brain about rotation and position.
Close Your Eyes Touch your nose Touch your knees
Kinesthetic
Kinesthetic Tells where body parts are. Receptors located in muscles and joints.
Transduction Sensory neurons in stretch receptors in muscles Relays to spinal cord first
Crash Course Crash Course Perception
Wrap Up How is transduction different for body senses and “touch” senses? When finished, work on review.