final ch. 1-14 Flashcards
what is the most objective method for acquiring knowledge?
the scientific method; involving: observation, hypothesis, testing, theorizing, replication
which research method can establish cause-effect relationships?
experiments
independent variable
manipulated
dependent variable
measured
neurons
a specialized cell that conduct impulses through the nervous system
hippocampus
controls behaviors; a structure in the minbic system that plays a central role in the storage of new memories, the response to new or unexpected stimuli, and navigational ability
amygdala
involved with emotions and aggressive behavior; a structure in the limbic system that plays an important role in emotions, particularly in response to unpleasant or punishing stimuli
what are the receptor cells for vision?
rods and cones
rods
for low illumination levels (x20 rods than cones) light-sensitive rejector cells in the retina that allows the eye to respond to as few as five photons of light
cones
for bright light, color, details (6 million) the light-sensitive receptor in the retina that enable humans to see color and find detail in adequate light nut not function in very dim lighting
sensation
bringing information through the senses; the process through which the senses pick up visual, auditory, and other sensory stimuli and transmit to the brain
perception
actively organizing and interpreting that information; the process by which the brain actively organizes and interprets sensory information
examples of “altered states of consciousness”
change in awareness produced by sleep, meditation, hypnosis, or drugs
what is alcohol classified as?
in high doses depressed brain activity (disinhibition)
physical dependence
body’s tolerance; a compulsive pattern of drug use in which the user developed a drug tolerance coupled with unpleasant withdrawal symptoms when the drug use is discontinued
psychological dependence
craving; or irritable urge for a drug’s pleasurable efffects
Watson & Rayner’s “Little Albert and the White Rat” experiment an generalization
• Conducted experiment to prove fear could classically condition.Little albert was a was a healthy and emotionally stable 11 month old infant.When tested her showed no fear except of loud noise. Rayner presented Albert with a white rat, when he reached for a the white rat they would create a loud noise. Continuing the processes numerous times Albert began to cry at the sight of the white rat
punishment
the removal of pleasant stimuli or the application of an unpleasant stimulus, thereby lowering the probability of a response
negative reinforcement
negative, taking away; the termination of an unpleasant condition after a response which increases the probability that the response will be repeated
encoding
changing form; transforming information into a form that can be stored in memory