Sensation and Perception Flashcards
What is sensation?
Picking up information from the outside world and turning it into neural information.
What is perception?
The interpretation of the things we sense.
Define Transduction
The conversion of physical information into neural information.
What is visions: environmental stimulus, point of transduction, and what part of the brain the information is sent?
Environmental stimulus: light waves
Point of Transduction: photoreceptors in the retina
Area of the brain: Primary visual cortex (occipital lobe)
What is hearing: environmental stimulus, point of transduction, and what part of the brain the information is sent?
Environmental stimulus: sound waves
Point of Transduction: hair cells or cilla in the cochlea
Area of the brain: primary auditory cortex (temporal lobe)
What is smell: environmental stimulus, point of transduction, and what part of the brain the information is sent?
Environmental stimulus: volatile substances
Point of Transduction: olfactory cilla in the olfactory bulb
Area of the brain: primary gustatory cortex (frontal lobe) and primary olfactory cortex (temporal lobe and limbic system)
What is taste: environmental stimulus, point of transduction, and what part of the brain the information is sent?
Environmental stimulus: soluble substances
Point of Transduction: gustatory cells in the taste buds
Area of the brain: primary gustatory cortex (frontal lobe) and primary olfactory cortex (temporal lobe and limbic system)
What is touch: environmental stimulus, point of transduction, and what part of the brain the information is sent?
Environmental stimulus: pressure, vibration, heat, cold, damage, etc.
Point of Transduction: variety of sensory receptors in the skin and throughout the body
Area of the brain: primary somatosensory cortex (parietal lobe)
How does light create vision?
Light hits the retina, photoreceptors convert light energy into neural impulses, optic nerve sends that visual information to the brain
What does it mean if you are color blind?
You have a color deficiency
What are the 4 types of color blindness?
- Protanopia: can’t see red
- Deuteranopia: can’t see green
- Tritanopia: can’t see blue
- Monochromacy: can’t see color
What are the consequences of damage to the hair cells in the cochlea?
Your hearing will decline (hearing loss)
What is the nature of the relationship between the sense of smell and taste?
Smell and taste both occur in the primary gustatory cortex and primary olfactory cortex. Also, smell is a primary preceptor for taste.
What is top-down procesing?
Information already stored in the brain is used to process the world
What is bottom-up processing?
You see things as pieces and then put them together in your mind
