EXAM 1 Flashcards
Brain component of Psychology
Biological and Chemical processes
Mind component of Psychology
Subjective experiences and how we interpret information from the environment
Behavior component of Psychology
Our actions and decisions, measurable and observable
Implications
Refer to the broader meaning, consequences and applications that can be drawn from study results
Operationalization
Defining variables in ways that allow them to be measured
Internal validity
examines whether the study design, conduct and analysis answer the research question without bias from other variables
External validity
examines whether the study findings can be generalized to other contexts
Naturalistic observation
An in depth study of a phenomenon in its natural setting
Correlational Methods
research methods that measure the direction and strength of the relationship between two variables
Experimental methods
research methods that test hypothesis and allow researchers to draw conclusions about causality
Between subject-design
Randomly assign participants to two or more groups. Expose each group to a different condition of an independent variable. Compare
Within subject design
Only one group of participants, expose each participants to both conditions , compare
IRB Ethical Principles, Respect for persons
autonomy of individuals should be respected and informed consent must be sought; persons with diminished autonomy are entitled to equal protection
IRB ethical principles, Beneficence
a responsibility to do no harm, to maximize possible benefits, and to minimize the possibility of harm
IRB Ethical Principles
an expectation of fairness in the distribution of benefits realized from research, as well as its burdens
steps of scientific method
Observation, Literature review, Hypothesis, Design a study, collect data, analyze data, draw conclusions, report findings, peer review and theory development
Sensation
The process of detecting stimuli from the environment
Transduction
process of translating sensory information into neural activity, effects of a physical signal like light or sound on the firing of neurons in the brain
Perception
the process of interpreting sensory information
Sensory Adaptation
reduced neural response to an unchanging stimulus
Selective attention
ability to focus on a subset of the available information and ignore the rest
Bottom-up processing
perception based on building simple input into more complex perceptions
Top-down processing
a perceptual process in which memory and other cognitive processes are required for interpreting sensory information
Psychophysics
the study of the relationship between the physical qualities of stimuli and the subjective responses they produce
absolute threshold
the smallest amount of stimulus that can be detected
Difference threshold
the smallest detectable difference between two stimuli
Signal detection theory (SDT)
a method for determining an individuals threshold for making different types of decisions
SDT Hit
detecting a stimulus when a stimulus is present
SDT Miss
not detecting stimulus when stimulus is present
SDT false alarm
believing a stimulus exists when a stimulus is absent
SDT correct rejection
Believing there is no stimulus when stimulus is absent
Cornea
the clear surface at the front of the eye that begins the process of directing light to the retina
Iris
the brightly colored circular muscle surrounding the pupil
Pupil
an opening formed by the iris where light enters the eye
Lens
The clear structure behind the poupil that bends light towards the retina
Retina
layers of visual processing cells in the back of the eye
Fovea
an area of the retina that is specialized for highly detailed vision
Optic nerve
where information leaves the eye and connects to the brain
Photoreceptors
specialized neurons that react to light
Rods and Cones
(R) detect light and dark (C) detect color
Retinal Neurons
pass information from the photoreceptors to the optic nerve which leads to the brain
Horizontal cells
integrate and modulate output of rods and cones
Bipolar cells
receive input from horizontal cells and photoreceptors, causing excitation and inhibition
Amacrine cells
decode signal from bipolar cells
Ganglion cells
relay retinal input to the visual processing centers in the brain via the optic nerve