Sensation & Perception

What is Sensation?

• Sensation refers to the process of sensing our environment through touch, taste, sight, sound, and smell.

• refers to how the mind process information

• refers to how we store information

Perception ca be defined as-

• how we perceive different things

• how we interpret the information from the external world

• how we sense things from the external world

The sense of movement and body position

• Hearing
• Sight
• Kinesthesis
• Olfaction
• Touch

Which of the following is a perception?

• noting a change in temperature
• hearing an increase in volume
• recognizing an object as a car
• viewing a decrease in brightness

Being able to see a candle flame 30 miles away on a clear night is the

• absolute threshold for human vision
• difference threshold for human vision.
• perceived threshold for human vision
• ratio threshold for human vision

If an object reflects purple light and absorbs other colors, what color will that object appear to be in daylight to someone with normal color vision?

• any color except purple, depending on the object’s density
• purple
• black or gray
• white or gray, depending on the object’s reflectivity

Which of the following is true about rods and cones?

• There are more cones in the retina than rods.
• Rods are photoreceptors, while cones are not
• Rods are sensitive to lower levels of light than cones.
• Rods are similar to color film and cones are similar to black-and-white film.

Vibration is crucial to which sense?

• sight
• hearing
• smell
• taste

If an elderly person thinks that food does not taste as good as it used to, what is the likely reason?

• a decline in his or her kinesthetic senses
• a decline in his or her cochlea
• a decline in his or her vestibular system
• a decline in her or his olfaction

When a person rubs an elbow after smacking it into a table, that person is

• creating competition between pain and nonpain impulses
• focusing attention toward the pain.
• decreasing nonpain impulses in the area.
• increasing pain impulses in the area