Sensation can be described as the process of how our nervous system and sensory receptors receive and translate stimuli from our environment. Perception is the process by which our brains organize and interpret sensory stimuli, which allows us to recognize significant events and objects. Sensation functions as a bottom-up process because it starts at a smaller level and works its way up (i.e. from sensory receptors to processing centers). Perception functions as a top-down process because it starts at a larger level and gets smaller as it continues (i.e. from the sensory input down to our expectations and experiences).

Panic disorders are quite common. During a panic attack, an individual will have a higher heart rate along with physiological symptoms that may make them feel physically ill. Fear of future anxiety attacks also may trigger worse symptoms.

The minimum amount of energy for a stimulus to be registered as a sensation is known as the absolute threshold. Any stimulus that occurs too weakly to surpass this threshold will not result in a sensation, and will thus be undetected.

The just noticeable difference refers to the minimum amount of change in a stimulus necessary for a difference in its intensity to be recognized.

Transduction is the conversion of energy from one form into another, for example, from light energy into electrical energy during vision.

The minimum threshold may sound like the correct answer, but it is in fact not the correct term. The absolute threshold is the appropriate label for the phenomenon.

Retinal disparity is a binocular cue that involves observing the difference between the two images the retinas receive of a single object. The greater the difference, the closer the object is to the viewer.

Throughout human history, people have utilized naturally occurring substances to reach altered states of consciousness. These substances range widely among the categorizations that modern Western science has created, including stimulants (e.g. coffee), depressants (e.g. wine), and hallucinogens (e.g. certain mushrooms). Generally, drug addiction and abuse has only become a problem with the advent and manipulation of synthetic drugs, along with social changes and stresses.

The situation with Angela is the best example of synesthesia—a phenomenon, in which stimulation of one sensory pathway triggers a response by a different, unrelated sensory pathway. People with synesthesia might see a certain color whenever they taste a certain food. The important thing to note is that in synesthetic perception, the person experiences the synesthetic connection as being projected outside the body, not just in the mind’s eye (e.g. Angela does not simply imagine the color red when she sees the letter A: she actually sees A as being colored red, even if it is printed in plain black font). The other situations described in the answer choices reflect other psychological phenomena. Ashley is experiencing amnesia; George, phantom limb syndrome; and Taylor, taste aversion.

"Subliminal" is defined as "beneath the threshold" and it refers to information which is processed without entering into consciousness. Such information has been demonstrated to impact decision making in laboratory conditions, but failed to provide a significant enough influence to justify its use in advertising or politics. This allayed the concerns over a possible "brainwashing" of the public by the media which arose when this phenomenon was discovered.

Though in Freudian terminology the subconsciousness is described as a component of mental life which is inaccessible to regular consciousness, "unconsciousness" does not match this or the correct answer to the question. Finally, subliminal information is not "paranormal," or outside of the natural laws of physics, in any regard, and neither is it "subtypical", which is in fact, not a word at all.

Throughout human history, people have utilized naturally occurring substances to reach altered states of consciousness. These substances range widely among the categorizations that modern Western science has created, including stimulants (e.g. coffee), depressants (e.g. wine), and hallucinogens (e.g. certain mushrooms). Generally, drug addiction and abuse has only become a problem with the advent and manipulation of synthetic drugs, along with social changes and stresses.

The Gestalt laws of perception are a set of principles that govern the way humans tend to perceive visual stimuli as a collective whole, rather than discrete individual objects or events. Different names are given to the specific applications of this overarching principle. For example, the phi phenomenon refers to the tendency to perceive a series of lights blinking on and off down a line as a single light moving along, instead of a number of lights turning on and off for no apparent reason. The law of prägnanz (not the prägnanz effect that was listed as an answer choice) is the Gestalt law that suggests that people perceive visual stimuli in terms of the simplest explanation or form possible. Opponent-process theory is a concept of visual perception that explains why some colors seem to be incompatible (e.g. we might see a yellowish green, but we cannot really imagine a reddish green).

Object permanence is the understanding that even though an object has disappeared from view, that disappearance is probably temporary: the object has not disappeared totally from existence. Infants do not achieve this understanding until around eight months of age. Because of this, the baby girl likely believes her father no longer exists when he disappears from view, which is upsetting.