Question

3 multiple choice 1 point
paola was so busy completing her homework on her laptop that she didnt notice when her cellphone lit up with a text message notification. what concept can explain paolas experience?
sensory adaptation
bottom-up processing
top-down processing
inattentional blindness

4 multiple choice 1 point
even when playing the same musical notes, a guitar and a flute sound different. which term explains the difference in sound between these two instruments?
timbre
pitch
sensation
sensory adaptation

Explanation:

Analyze Question 3

The scenario describes Paola focusing intensely on her homework on her laptop, causing her to fail to notice a visible stimulus (her cellphone lighting up with a notification). This failure to notice an unexpected, fully visible stimulus because attention is engaged on another task is the definition of inattentional blindness.

Let's evaluate the options:

• Sensory adaptation refers to a decrease in sensitivity to an unchanging stimulus over time.
• Bottom-up processing is system-level processing that begins with sensory receptors and works up to integration.
• Top-down processing is guided by higher-level mental processes, drawing on experience and expectations.
• Inattentional blindness directly explains failing to see visible objects when attention is directed elsewhere.

Therefore, the correct option is inattentional blindness.

Analyze Question 4

The scenario describes two different musical instruments (a guitar and a flute) playing the exact same musical notes (which means they have the same fundamental frequency/pitch) but still sounding distinct. The quality of a sound wave that allows us to distinguish between different instruments or voices playing the same pitch and loudness is called timbre (or tone quality).

Let's evaluate the options:

• Timbre is the unique complexity and purity of a sound wave that distinguishes different sound sources.
• Pitch is determined by frequency; since they play the same notes, their pitch is the same.
• Sensation is the basic registration of physical stimuli by sensory organs.
• Sensory adaptation is the reduction in sensitivity to a constant stimulus.

Therefore, the correct option is timbre. Note that the radio button selected in the image ("pitch") is incorrect, as the prompt states they are playing the same musical notes.

Answer:

Question 3

• (A) sensory adaptation
• (B) bottom-up processing
• (C) top-down processing
• (D) inattentional blindness (Correct answer)

Question 4

• (A) timbre (Correct answer)
• (B) pitch
• (C) sensation
• (D) sensory adaptation