Chapter 4: Sensation and Perception

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Andrew Cooper
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Andrew Cooper
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Zusammenfassung der Ressource

Chapter 4: Sensation and Perception
  1. Sensation

    Anmerkungen:

    • Information from our 5 senses. 
    1. Visual System
      1. Lens

        Anmerkungen:

        • Focuses light on retina
        1. Pupil

          Anmerkungen:

          • regulates amount of light
          1. Retina

            Anmerkungen:

            • sense organ for light
            1. Rods

              Anmerkungen:

              • black and white
              1. Cones

                Anmerkungen:

                • Color vision
              2. Brightness
                1. Color
                  1. Saturation
                  2. Auditory system
                    1. Vestibular system
                      1. Semi-circular canals
                        1. Loudness
                          1. Pitch
                            1. Timbre
                            2. Psycho Physics

                              Anmerkungen:

                              • Sensation begins with a detectable stimulus 
                              1. Thresholds

                                Anmerkungen:

                                • The threshold is the minimum amount of change required to generate an action potential. 
                                1. Fechner
                                  1. Absolute Threshold

                                    Anmerkungen:

                                    • In neuroscience and psychophysics, an absolute threshold was originally defined as the lowest level of a stimulus —light, sound, touch, etc.—that an organism could detect.
                                  2. JND

                                    Anmerkungen:

                                    • Just Noticeable Difference (JND) is a sensory environment for one person at a time lying in total darkness. The installation is based on Gustav Fechner's concept of the just noticeable difference: the ability to perceptually detect the smallest changes in sensory stimuli.
                                    1. Weber
                                  3. Taste
                                    1. Sweet
                                      1. Sour
                                        1. Bitter
                                          1. Salty
                                            1. Umami
                                            2. Smell
                                              1. Olfactory
                                                1. Pheromones
                                                2. Touch
                                                  1. Pressure
                                                    1. Pain
                                                      1. temperature
                                                        1. Kinesthetic
                                                      2. Perception

                                                        Anmerkungen:

                                                        • Making sense of what we perceive. 
                                                        1. Feature Analysis
                                                          1. Bottom-Up

                                                            Anmerkungen:

                                                            • Believe what we see
                                                            1. Top-Down

                                                              Anmerkungen:

                                                              • See what we believe
                                                              1. Ames Room
                                                                1. Gestalt Form Perception
                                                                2. Perception of Vision
                                                                  1. Trichromatic

                                                                    Anmerkungen:

                                                                    • Eye has three types of receptors pairings of the same three colors: green, blue, and red. 
                                                                    1. Operant process

                                                                      Anmerkungen:

                                                                      • receptors act opposite Green, blue, and red. 
                                                                      1. Optical illusion
                                                                        1. Occipital Lobe
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