Chapter 4: Sensation and Perception Fill-in-the-Blank Questions PDF

Krause, Corts, Dolderman, Smith, Psychological Science, Canadian Edition, Chapter 4: Sensation and Perception 1) The role of the photoreceptors in the eye is to convert the physical stimulus of light into a nerve impulse that can be relayed to the brain. This process...

Krause, Corts, Dolderman, Smith, Psychological Science, Canadian Edition, Chapter 4: Sensation and Perception 1) The role of the photoreceptors in the eye is to convert the physical stimulus of light into a nerve impulse that can be relayed to the brain. This process is known as transduction. Correct: Transduction is the process in which physical or chemical stimulation is converted into a nerve impulse that is relayed to the brain. It is part of the process of sensation. Diff: 2 Type: FIB Page Reference: 132 Skill: Factual Objective: Know the key terminology of sensation and perception. 2) In order to detect a noticeable difference between two similar stimuli, the difference between the two stimuli must be above the difference threshold. Correct: A difference threshold is the smallest detectable difference between stimuli. In contrast, the absolute threshold is the minimum amount of energy, or quantity of a stimulus, required for it to be reliably detected at least 50% of the time it is presented. Diff: 1 Type: FIB Page Reference: 134 Skill: Factual Objective: Understand what stimulus thresholds are. 3) Mohamed is home alone one evening when he thinks he hears a voice. He investigates and finds that there's no one there. This would be called a false alarm in the terminology of signal detection theory. Correct: In signal detection theory experiments, if a participant thinks she detected the signal when no signal is present, this is called a false alarm. Diff: 2 Type: FIB Page Reference: 135 Skill: Applied Objective: Apply your knowledge of signal detection theory to identify hits, misses, and correct responses in examples. 4) When we look directly at an object, the light focuses on the central region of the retina, called the fovea, which allows us to see it clearly and in full colour. Copyright © 2015 Pearson Canada Inc. Page 1 of 3  Krause, Corts, Dolderman, Smith, Psychological Science, Canadian Edition, Chapter 4: Sensation and Perception Correct: The fovea is the central region of the retina that contains the highest concentration of cones; this is why objects we centre our vision upon are the clearest and most colourful relative to objects in the periphery. Diff: 1 Type: FIB Page Reference: 145-146 Skill: Factual Objective: Know the key terminology relating to the eye and vision. 5) The opponent-process theory explains why we see a yellow afterimage after staring at a blue wall. Correct: According to the opponent-process theory, we perceive colour in terms of opposite ends of the spectrum: red to green, yellow to blue, and white to black. It explains why we see the opponent colour after staring at something, a phenomenon known as negative afterimage. Diff: 2 Type: FIB Page Reference: 148 Skill: Conceptual Objective: Understand the theories of colour vision. 6) Another name for the condition known as face blindness is prosopagnosia. Correct: Specific genetic problems or damage to this area can result in failure to recognize people’s faces (a condition called pro so pa g n o s I a, or face blindness). People with face blindness are able to recognize voices and other defining features of individuals, but not faces. Diff: 3 Type: FIB Page Reference: 151 Skill: Factual Objective: Analyze how we perceive objects and faces. 7) Glenda looks at the textbooks on her shelf. Because her history book is covering part of her psychology book's cover, her brain can use the concept of interposition to know that the history book is closer to her. Correct: Interposition is a simple dept cue where nearby objects block our view of far-off objects, such as umbrellas blocking the view of buildings behind them. Diff: 2 Copyright © 2015 Pearson Canada Inc. Page 2 of 3  Krause, Corts, Dolderman, Smith, Psychological Science, Canadian Edition, Chapter 4: Sensation and Perception Type: FIB Page Reference: 156 Skill: Applied Objective: Apply your knowledge to explain how we perceive depth in our visual field. Copyright © 2015 Pearson Canada Inc. Page 3 of 3