AP Psych Unit 1.6.01 - 1.6.06 review

What is the role of the olfactory bulb in the process of smelling?

• It detects light.

• It processes sound.

• It processes olfactory information.

• It controls balance.

Answer explanation

The olfactory bulb is responsible for processing olfactory information, which includes detecting and interpreting smells. This makes 'It processes olfactory information' the correct choice, as the other options pertain to different senses.

Which part of the brain is responsible for memory and is connected to the olfactory system?

• Thalamus

• Amygdala

• Hippocampus

• Olfactory bulb

Answer explanation

The hippocampus is crucial for memory formation and is directly connected to the olfactory system, linking smells to memories. The thalamus and amygdala have different functions, while the olfactory bulb primarily processes smell.

What is the absolute threshold?

• The point at which an individual can detect a new sensation 50% of the time

• The point at which an individual can detect a new sensation 100% of the time

• The point at which an individual cannot detect any sensation

• The point at which an individual can detect a new sensation 25% of the time

Answer explanation

The absolute threshold is defined as the minimum level of stimulus intensity that an individual can detect 50% of the time. This means it is the point of sensitivity for new sensations.

Which sense is associated with seeing a candle flame on a clear night 30 miles away?

• Sight

• Hearing

• Taste

• Smell

Answer explanation

The ability to see a candle flame 30 miles away relies on the sense of sight. This sense allows us to perceive light and visual details, making it possible to detect distant objects like a flame on a clear night.

What is the term for the minimum level of stimulus intensity needed to detect a sensation?

• Absolute threshold

• Relative threshold

• Sensory adaptation

• Perceptual set

Answer explanation

The term 'absolute threshold' refers to the minimum level of stimulus intensity required for a sensation to be detected. It is distinct from other concepts like relative threshold and sensory adaptation.

What visual impairment is characterized by difficulty seeing close objects clearly?

• Nearsightedness

• Farsightedness

• Astigmatism

• Color blindness

Answer explanation

Nearsightedness, or myopia, is a visual impairment where distant objects appear blurry while close objects can be seen clearly. This makes it difficult to see far away, not close up, which aligns with the question.

Where are rods more densely concentrated?

• Fovea

• Center of the retina

• Edges of the retina

• Optic nerve

Answer explanation

Rods are photoreceptor cells responsible for vision in low light. They are more densely concentrated at the edges of the retina, allowing for better peripheral vision, while the fovea contains mostly cones for color and detail.

What is the primary function of cones in vision?

• Vision in low light

• Vision in bright light

• Detecting movement

• Focusing images

Answer explanation

The primary function of cones in vision is to enable vision in bright light. They are responsible for color perception and detail in well-lit conditions, unlike rods, which are more sensitive in low light.

Which part of the eye is responsible for the blind spot?

• Retina

• Optic nerve

• Cornea

• Lens

Answer explanation

The blind spot is located where the optic nerve exits the eye, lacking photoreceptors. This area on the retina does not detect light, creating a blind spot in our visual field.

Which cells in the retina convert light to neural signals?

• Ganglion cells

• Photoreceptors (rods and cones)

• Bipolar cells

• Axons

Answer explanation

Photoreceptors, specifically rods and cones, are the cells in the retina that convert light into neural signals. Ganglion cells and bipolar cells play roles in processing these signals, but they do not convert light directly.