6.S-PMM - Exam 1 Top Score: 50 Mean: 43.4 Median: 44.5...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
1 1 Sensation & Perception Chapter 6 Psy 12000.003 Exam 1 Top Score: 50 Mean: 43.4 Median: 44.5 Mode: 44 SD: 5.11 Problems: – Start time screwed up for both; got resolved within 15 minutes – Duplicate question (my fault) – Wrong answers for 3 rd graph question (changed within 15 minutes, only affected 5 students; their scores have been corrected) HELP LINE: 1-800-936-6899 Suggestions: – No go back? – Others? 2 Announcement • Participants Needed – $10 to participate in experiment. – You (ask a friend, too) • Contact: Eric Wesselmann edwesse@psych.purdue.edu 3 4 How do we construct our representations of the external world? •To represent the world, we must first detect physical energy (a stimulus) from the environment and convert it into neural signals. This is a process called sensation . •Wilhelm Wundt: “Father of Experimental Psychology” –Introspectionism When we select, organize, and interpret our sensations, the process is called perception . 5 The Dark Restaurant http://www.unsicht-bar.com/unsicht-bar- berlin-v2/en/html/home_1_idea.html “I went to this restaurant in Berlin…” 6 The Senses Traditional Five: – Sight – Hearing – Touch – Smell – Taste Six others that humans have – Nociception (pain) – Equilbrioception (balance) – Proprioception & Kinesthesia (joint motion and acceleration) – Sense of time – Thermoception (temperature) – Magnetoception (direction)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 7 Bottom-up Processing Analysis of the stimulus begins with the sense receptors and works up to the level of the brain and mind. Letter “A” is really a black blotch broken down into features by the brain that we perceive as an “A.” 8 Top-Down Processing Information processing guided by higher-level mental processes as we construct perceptions, drawing on our experience and expectations. 5 ) ) 5 9 Top-Down or Bottom-Up? Learned depth cues make this a top down perceptual distortion 10 Our sensory and perceptual processes work together to help us sort out complex images. Making Sense of Complexity “The Forest Has Eyes,” Bev Doolittle 11 Sensing the World Senses suit an organism’s needs, enabling survival. A frog feeds on flying insects so visual acuity must be very sensitive; a male silkworm moth is sensitive to female sex-attractant odor; and we as human beings are sensitive to sound frequencies that represent the range of human voice. 12 Exploring the Senses What stimuli cross our threshold for conscious awareness? Could we be influenced by stimuli too weak (subliminal) to be perceived? Why are we unaware of unchanging stimuli, like a band-aid on our skin?
Background image of page 2
3 13 Psychophysics A study of the relationship between physical characteristics of stimuli and our psychological experience with them.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/10/2012 for the course PSYCH 350 taught by Professor Conger during the Fall '10 term at Purdue University-West Lafayette.

Page1 / 16

6.S-PMM - Exam 1 Top Score: 50 Mean: 43.4 Median: 44.5...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online