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ILLINOIS PSYC 230 - Individual Review Homework #1_for students (1)

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Psyc230Individual Review Homework #1 (Units 1 and 2): total points: 10 pts Please use your notes and slides for this activity. You should first provide your own answers to the homework (using your own words). After the homework submission deadline, you will be able to access the solution to the homework. Please use it to verify your answers. They are provided to help you learn the material and study for the exam. Note, the answer provided does not necessarily contain all the relevant information. There are a total of 9 homework and they will count for 15% of the final grade.Relationship between physical intensity and perceptual intensity.1. Figure 1.1.1 (1pt) Write all the relevant terminology and definitions associated with the Figure above.physical intensity can be described as a stimulus that may be presented. Perceptual intensity is how sensitive we may be to said stimulus when it is presented. The graph seen here is Weber’s Law. The relationship between physical intensity and perceptual intensity is proportional, in other words, linear. Each level of physical intensity we increase, the level of perceptual intensity will increase the same amount. 1.2 (1pt) Using your own words, please find an example to describe the relationship between the physical intensity of the stimulus and the perceptual intensity. In particular, try to explain what happens with the physical intensity on the X axis when you move from 0 to 1 to 2 in the Y axis. An example of this is brightness of a light. dimming or brightening a light is pretty constant, as we can tellat each level that there is a difference between those levels. going from 0 to 1 to 2 is very proportional since we can see a clear difference between the levels of brightness.1Psyc2302. Figure 2. 2.1. (1pt) Write all the relevant terminology and definitions associated with the Figure above.The graph shown here demonstrates Fechner’s Law. It basically states that sensation is not proportionateor linear. Rather, it will go up a lot in the beginning, and then taper off towards the higher levels. 2.2 (1pt) Using your own words, please find an example to describe the relationship between the physical intensity of the stimulus and the perceptual intensity. In particular, try to explain what happens with the physical intensity on the X axis when you move from 0 to 1 to 2 in the Y axis.An example that can be related to this is when we experience pain. If someone were to pinch you at different levels of intensity, the level from 0 to 1 to 2 would not be linear. the level of pain you would experience from 0 to 1 (If someone pinches you lightly) would be a greater amount of perceptual intensity compared to the level of pain you would experience from 1 to 2 (someone pinches you a bit harder). However, even though the physical intensity increases over the levels, that does not mean that the perceptual intensity will be a linear experience. If someone pinches you extremely hard, the pain experienced then might feel the same even if someone pinched us even harder than that. 3. Figure 3.2Psyc2303.1 (1pt) Write all the relevant terminology and definitions associated with the Figure above.The graph shown here represents Steven’s Power Law. It states that as a stimulus increases (physical intensity increases), the sensation of stimulus will increase as well (perceptual intensity increases).3.2 (1pt) Using your own words, please find an example to describe the relationship between the physical intensity of the stimulus and the perceptual intensity. In particular, try to explain what happens with the physical intensity on the X axis when you move from 0 to 1 to 2 in the Y axis.An example of this would be if someone were to increase the room temperature. from 0 to 1, someone might increase the temperature by a few degrees. It might go from 70 degrees fahrenheit to 73, and you will start to feel warmer. from 1 to 2, someone will increase the temperature from 73 to 76 degrees fahrenheit. At this temperature, you will definitely start to feel much hotter, possibly starting to sweat. although the rate of physical intensity is increasing at a constant rate, the perceptual intensity increases at a much faster rate. Review of the different psychophysical methodsa. Methods of Limits. Check what applies. (1pt)❏ Random presentation of stimuli■ Orderly presentation of stimuli (ascending blocks and descending blocks)❏ Participants directly control the stimulus level■ Experimenter/Computer controls the stimulus level, not the participant■ Participants press a button when they detect the stimulus■ Participants press a button when they stop detecting the stimulus❏ Participants give a value to estimate the magnitude of their experience when confronted with the stimulusb. Methods of Constant stimuli. Check what applies. (1pt)■ Random presentation of stimuli3Psyc230❏ Orderly presentation of stimuli (ascending blocks and descending blocks)❏ Participants directly control the stimulus level■ Experimenter/Computer controls the stimulus level, not the participant■ Participants press a button when they detect the stimulus■ Participants press a button when they stop detecting the stimulus❏ Participants give a value to estimate the magnitude of their experience when confronted with the stimulusc. Method of Adjustment. Check what applies. (1pt)❏ Random presentation of stimuli■ Orderly presentation of stimuli (ascending blocks and descending blocks)■ Participants directly control the stimulus level❏ Experimenter/Computer controls the stimulus level, not the participant■ Participants press a button when they detect the stimulus■ Participants press a button when they stop detecting the stimulus❏ Participants give a value to estimate the magnitude of their experience when confronted with the stimulusd. Magnitude Estimation method. Check what applies. (1pt)❏ Random presentation of stimuli❏ Orderly presentation of stimuli (ascending blocks and descending blocks)■ Participants directly control the stimulus level❏ Experimenter/Computer controls the stimulus level, not the participant■ Participants press a button when they detect the stimulus■ Participants press a button when they stop detecting the stimulus■ Participants give a value to estimate the magnitude of their experience when confronted with the


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