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Homework Psychology

In: Philosophy and Psychology

Submitted By guifrc
Words 559
Pages 3
Homework Assignment
Student: Guilherme Henrique Domingos de Franco
LAB Section: 044
Access ID number: 004520890

Assignment 3a – Describe how the two-point discrimination experiment was conducted and the results

What materials were used?

One caliper, one ruler and notes sheet.

How many participants (number of students who responded to the caliper touches)?

6 students.

Explain what the experimenter did.

The classroom was divided into 6 groups of 4 students in each group.

Student number 1: responsible for feeling the sting of the caliper.
Student number 2: responsible for sticking the student number 1.
Student number 3: responsible for write down the results.
Student number 4: moral support.

Experiment: the student number 1 extended his arm to receive the nudge without seeing how many points the student number 2 was using. The student number 2 chooses the distances between the points and if he would poke finger or forearm randomly so that the student number 1 would not be influenced by the order of the distances. The student number 3 wrote if the student number 1 felt one point or two.

State the percentage of participants who felt two points at each of the six distances on the finger.

0.0 cm - 0%
0.5 cm - 80%
1.0 cm - 100%
1.5 cm - 100%
3.0 cm - 100% 5.0 cm - 100% State the percentage of participants who felt two points at each of the six distances on the forearm.

0.0 cm - 0%
0.5 cm - 20%
1.0 cm - 20%
1.5 cm - 60%
3.0 cm - 60%
5.0 cm - 100%

Was there a difference in the touch sensitivity on the finger compared to on the forearm (i.e., did participants feel two points in one area more than in the other)?

Yes. The participantes were more sensitive on the forearm than the finger.

Describe 5 sensory experiences (1 for each sense – vision, hearing, taste, smell, and touch) and how top-down and bottom-up processing are both necessary in understanding the experience.

Hearing - I walked into my house and heard a voice. Bottom-up processing is when the voice generated sound waves that started the neural processing in the ear. Top-down processing is when my previous experience with that voice helped me to identify the owner of the voice.

Smell - I walked into a restaurant and felt a strong smell. Bottom-up processing is when my noise felt the smell. Top-down processing is when my previous experience with that smell helped me to identify what food was it.

Taste - Someone covered my eyes and put some food in my mouth. Bottom-up processing is when my tongue felt the flavor. Top-down processing is when my previous experience with that test helped me to identify what was place in my mouth.

Touch - I put my hand on the top of my dresser in the dark. Bottom-up processing is when my hand touched an object and sent this information to my brain. Top-down processing is when my previous experience helped to identify that was a pan.

Vision - I was walking at the street and I saw a person walking in my direction. Bottom-up processing is when my eyes start processing the image. Top-down processing is when my previous experience helped me to identify that I met this person already.

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