Glossary O

Orientation tuning curve refers to a function relating the firing rate of a neuron to the orientation of the stimulus.

Orienting response refers to the automatic positioning of oneself to facilitate attending to a stimulus; an individual views a strong or unfamiliar stimulus, and changes in heart rate and brain-wave activity occur.

Origin is defined as the proximal attachment or point of attachment of a muscle closest to the midline or center of the body, generally considered the least movable part.

Original sin refers to the idea that children are inherently selfish egoists who must by controlled by society

Original word game is defined as a game in which adults teach children the names of words. Children point to an object and say, "What's that?" and the adult supplies the name.
Originator compatibility is the compatibility between group members, as described by William Schutz, which occurs when individuals who wish to express inclusion, control, or affection within the group are matched with individuals who wish to receive inclusion, control, or affection from others.

Ortho Evra patch refers to a thin, peach-colored patch that sticks to the skin and time releases synthetic estrogen and progestin into the bloodstream to inhibit ovulation, increase cervical mucus, and render the uterus inhospitable Ortho Evra patch is also referred to as the "Patch"

Orthography is defined as the representation of a sound by written or printed symbols.