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| (ACh) Involved in movement, sleep and parasympathetic nervous system. |
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| (DA) Involved in attention, movement, and reward. |
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| (5-HT) Involved in modd, sleep, dreaming, and eating. |
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| (NE) Involved in arousal and attention. |
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| (Glu) Major excitatory neurotransmitter. |
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Definition
| Major inhibitory neurotransmitter. |
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| Involved in pain inhibition and reward. |
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Definition
A stimulus entering your nervous system.
Ex: Spinal chord patients may have sensation but not perception. |
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| The concious experience of that stimulous. |
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Definition
| Specialized cells are activated by an environmental stimulus. |
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| The stimulus is converted to an electrical signal (action potential). |
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| The electrical signal travels along nerves to the brain. |
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| We become concoiusly aware of the stimulus. |
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Definition
| How strong does a stimulus need to be for you to detect its presence |
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Definition
| researcher slowly increases or decreases stimulus intensity until detection occurs. |
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Definition
| Participant adjusts the stimulus intensity to "just detectable" level. |
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| Just noticable Difference |
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Definition
| How much does a stimulus have to change before i notic it's different. |
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Definition
Sensory receptor cells become less sesitive to unchanging stimuli.
EX: Loud concerts, smell of burned popcorn. |
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Definition
protective covering; filled with pain receptors.
*Astigmatism: Imperfections in the cornea. |
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Term
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Definition
Focuses light onto the Retina.
*Accommodation: Lens changes shape.
*Catarax: Lens becomes cloudy.
*Hardening (of the lens): become "Far sighted" |
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Term
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Definition
Donut shaped muscle in front of lense. Gives eye color.
*Pupil: Hole in the middle of the donut ring. Controls amount of light allowed into the eye. |
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Definition
Layers of cells in the back of the eye. Contains photoreceptors.
*Photoreceptors: Specialized cells that respond to light. Called rods and cones. |
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Definition
| The center of the retina. The lens tries to focus light onto this pont. *Contains mostly cones. |
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Definition
Axons from the retina gather together leave the eye, and go to the brain.
*Optic disk: Place where the optic nerve joins the eyeball. Creates blindspot. |
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Definition
When going from a brightly lit place to a dark one.
Accomplished by RODS. Takes about 30 min.
*difficulty with adaptation can cause night blindness in older ppl. |
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Definition
When going from the dar to a brightly lit place.
Accomplished by CONES.
Much faster than dark adaptation. |
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| The tendancy to interpret an object as always being the same size, reguardless of its distance. |
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| The tendancy to interpret the shape of an object as being constant, even when its shape changes on the retina. |
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| The tendancy to perceive the brighness of an object as the shame, even when the light conditions change. |
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Definition
| trasition b/w wakefulness and sleep; theta waves begin. |
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Definition
| Quiet sleep; mostly theta waves; K-complexes and slep spindles appear. |
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| Deeper sleep; Delta waves begin to appear |
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| Deepest sleep; Mostly delta waves |
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The scientific study of changes that occur in people as they age.
You can study any aspect of human behavior and thought with a developmental perspective. |
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Definition
| Several different age grups are studied at one time point. |
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Definition
| One participant or group of participants are studied over a long period of time. |
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| Participants of different age groups are studied as in a cross sectional design but then followed and assesed at additional time points. |
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Nature- influence of inheirited characteristics on our personality, growth, intelligence, emotional stability, etc.
Nurture- Influence of environment on the same stuff mentioned above. |
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| Are our traits mostly stable over time or do we change. |
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| Do we see behavior change in stages, or do we slow gradual changes along a contunuum |
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