AP Psychology Practice Quiz: Sensation

Correct Answer: B

This aligns directly with content point 8, which defines sensation as 'the process of detecting environmental information and transducing it into neurochemical messages.' The other options describe perception, sensory adaptation, and absolute threshold, which are related but distinct concepts.

Correct Answer: B

According to content point 13, 'Rods in the periphery of the eye detect shapes and movement in low light.' Cones, as stated in point 15, process color and detail and work best in bright light.

Correct Answer: C

Content point 16 states that 'Afterimages result from the activation and non-activation of opponent-process ganglion cells (red/green, blue/yellow, black/white).' Staring at green fatigues the green-sensitive cells, so when looking at a white surface (which reflects all colors), the opponent red cells fire more strongly, creating the perception of a red afterimage.

Correct Answer: C

Content point 9 mentions that the detection of change is explained by the just-noticeable difference (Weber's law). Weber's law states that the change needed to be noticeable is a constant proportion of the original stimulus. Therefore, a small change to a small stimulus (1 candle added to 2) is more noticeable than the same small change to a large stimulus (1 candle added to 50).

Correct Answer: B

Content point 23 explicitly states that 'smell is the only sense not first processed in the thalamus.' The thalamus acts as a sensory relay station for all other senses before the information is sent to the cortex.

Correct Answer: D

Content point 26 explains that 'The chemical senses of smell and taste interact to create the sensation of flavor.' This is an example of sensory interaction, mentioned in point 10.

Correct Answer: A

Content point 30 defines kinesthesis as 'the sense of one's body movement, allowing for coordinated motion.' While the vestibular sense (point 29) is crucial for balance, kinesthesis specifically relates to the awareness of the position and movement of body parts.

Correct Answer: C

According to content point 28, 'Pain is processed in the body and brain; gate control theory attempts to describe its complexities.' This theory suggests that the spinal cord contains a neurological 'gate' that blocks pain signals or allows them to pass on to the brain.

Correct Answer: D

Content point 20 lists several theories of pitch perception. Place theory specifically posits that the perception of pitch depends on the 'place' where the cochlea's basilar membrane is stimulated. High frequencies produce vibrations near the beginning of the membrane, while low frequencies vibrate more of the membrane, including the far end.

Correct Answer: D

Content point 18 identifies prosopagnosia as 'face blindness,' a disorder resulting from damage to visual brain areas. This matches the description of being unable to recognize faces despite otherwise functional vision.

Correct Answer: B

Content point 22 distinguishes between two types of hearing difficulties. Sensorineural deafness results from damage to the inner ear (cochlea's hair cells) or auditory nerve, whereas conduction deafness involves problems with the mechanical system that conducts sound waves to the cochlea (e.g., eardrum, middle ear bones).

Correct Answer: C

Content point 12 states that 'Visual stimuli are focused onto the retina by the lens via accommodation.' This is the specific term for the lens adjusting its curvature.

Correct Answer: C

According to content point 27, the sensation of 'hot' is not from a single type of receptor but is 'produced by activating warm and cold receptors' at the same time. This demonstrates how the brain combines sensory inputs to create a distinct perception.

Correct Answer: A

Content point 10 explains that sensory systems can work together in a process called sensory interaction, and provides 'synesthesia' as an example of this phenomenon where one sensation involuntarily triggers another.

Correct Answer: A

Content point 25 relates the number of taste receptors to taste sensitivity, using 'supertasters' as an example. These individuals have a higher density of taste buds, leading to a more intense experience of tastes, particularly bitterness.

Correct Answer: C

Content point 14 states that 'Color vision is explained by both the trichromatic and opponent-process theories.' The trichromatic theory explains color processing at the receptor (cone) level, while the opponent-process theory explains processing at the post-receptor (ganglion cell) level, accounting for phenomena like afterimages.