Glossary I

Glossary I

Isolated children is defined as children who have grown up without normal human interactions.

Isolation is defined as the degree of physical distance of a group from other groups; a crisis resolution in which situational factors or a fragile sense of self lead a person to remain psychologically distant from others; the state of being alone.

Isolationism in psychology refers to a psychological state or behavior characterized by an individual's tendency to withdraw from social interactions and isolate themselves from others. It involves a preference for solitude and a reduced desire for social engagement. Isolationism can have various causes and consequences, impacting an individual's mental and emotional well-being.

Isomerization refers to a change in shape of the retinal part of the visual pigment molecule that occurs when the molecule absorbs a quantum of light. Isomerization triggers the enzyme cascade that results in transduction from light energy to electrical energy in the retinal receptors.

Isometric contraction is defined as a type of contraction with little or no shortening of the muscle resulting in no appreciable change in the joint angle.

Isometric exercise refers to exercise performed by contracting muscles against an immovable object.

Isotonic is a contraction in which a muscle shortens against a constant load or tension, resulting in movement; contraction occurring in which there is either shortening or lengthening in the muscle under tension Isotonic also known as a Dynamic contraction, and classified as being either concentric or eccentric.

Isotonic exercise is defined as an exercise that requires the contraction of muscles and the movement of joints, as in weight lifting.