Human sensation and perception
Several simple investigations give an insight into the working of the human brain – exploring perception, learning or how we respond to our surroundings.
Practice makes perfect?
Carry out three simple tests of sensorimotor skills. Present results graphically and interpret in terms of how sensorimotor skills have developed during the test.
Assessing skin sensitivity – touch discrimination
Touch the skin on different parts of the body with two points a measured distance apart. Determine the smallest distance in each area where two distinct touches are felt.
Assessing skin sensitivity – locating different receptors
Map stimulation of the skin over a small area using different stimuli to show that different kinds of receptor are distributed throughout the skin.
Investigating how we see colour
Use blocks of colour on projected slides or printed sheets to explore the relationship between visible colours and after-images. Develop hypotheses to explain colour vision.
Assessing skin sensitivity – temperature receptors
Investigate sensation induced by touch with a warm (but gradually cooling) thermometer and a cold (but gradually warming) thermometer.
Assessing human hearing
Use a number of techniques to evaluate the sense of hearing.