Question

1. what changed in phineas gages personality after his accident?

a. he became more polite
b. he remained exactly the same
c. he became surly and mean - spirited
d. he became a celebrity

1. what is the cerebral cortex primarily involved in?

a. basic survival functions
b. higher mental functions like thinking and speaking
c. automatic processes
d. sensory processing

1. what is the primary difference between sensation and perception?

a. sensation is top - down, while perception is bottom - up
b. sensation is bottom - up, while perception is top - down
c. sensation and perception are the same
d. sensation is only related to vision

1. which of the following describes the absolute threshold of sensation?

a. the maximum stimulation needed to register a stimulus
b. the minimum stimulation needed to register a stimulus 50% of the time
c. the average level of stimulation a person can detect
d. the sensory adaptation process

1. what does signal detection theory emphasize?

a. the role of the brain in processing light
b. the effects of psychological state on sensory detection
c. the differences between rods and cones
d. the relationship between sensation and perception

1. what is sensory adaptation?

a. the process of becoming more sensitive to stimuli
b. the ability to detect differences between stimuli
c. the adjustment of senses to constant stimulation
d. the ability to perceive stimuli more clearly

1. what role do rods play in vision?

a. they detect color and fine detail
b. they are responsible for peripheral vision and low light
c. they process neural signals
d. they focus light onto the retina

1. according to the video, what influences our perception?

a. only our experiences
b. our expectations, experiences, moods, and cultural norms
c. only our cultural background
d. scientific facts

Explanation:

• Question 7: Phineas Gage's accident damaged his frontal lobe. Before the accident, he was a well - liked, responsible person. After the accident, he became surly and mean - spirited.
• Question 8: The cerebral cortex is involved in higher mental functions. Basic survival functions (like heart rate regulation) are more related to lower brain structures. Automatic processes (e.g., breathing) also involve lower brain areas. Sensory processing is a part of what the cortex does, but its main role is higher mental functions like thinking and speaking.
• Question 9: Sensation is the bottom - up process (e.g., detecting raw sensory information like light waves hitting the eye). Perception is the top - down process (using prior knowledge and expectations to make sense of the sensory input).
• Question 10: The absolute threshold of sensation is defined as the minimum stimulation needed to register a stimulus 50% of the time.
• Question 11: Signal Detection Theory emphasizes that factors like a person's psychological state (e.g., being alert or fatigued) can affect whether they detect a sensory signal.
• Question 12: Sensory adaptation is the adjustment of senses to constant stimulation. For example, when you first enter a room with a strong smell, you notice it, but over time, your sense of smell adapts.
• Question 13: Rods are responsible for peripheral vision and vision in low light. Cones detect color and fine detail. Neural signal processing is a more general function of the visual system, and focusing light onto the retina is the job of the lens.
• Question 14: Perception is influenced by multiple factors. Our expectations (e.g., expecting to see a friend in a crowd), experiences (past knowledge of what things look/sound like), moods (a happy mood might make us perceive things more positively), and cultural norms (different cultures may perceive social cues differently) all play a role.

Answer:

1. c. He became surly and mean - spirited
2. b. Higher mental functions like thinking and speaking
3. b. Sensation is bottom - up, while perception is top - down
4. b. The minimum stimulation needed to register a stimulus 50% of the time
5. b. The effects of psychological state on sensory detection
6. c. The adjustment of senses to constant stimulation
7. b. They are responsible for peripheral vision and low light
8. b. Our expectations, experiences, moods, and cultural norms