e or through which one idea produces or evokes another.

_Conscious._ Having consciousness, or accompanying consciousness or
producing consciousness.

_Consciousness._ The mental states--perceptions, ideas, feelings--which
one has at any moment.

_Low level of consciousness._ Conscious processes not so clear as
others existing at the same time.

_High level of consciousness._ Conscious processes that are clear as
compared to others existing at the same time.

_Contrast._ The enhancing or strengthening of a sensation by another of
opposite quality.

_Correlation._ The relation that exists between two functions,
characteristics, or attributes that enables us, finding one, to predict
the presence of the other.

_Development._ The appearance, or growth, or strengthening of a
characteristic.

_Emotion._ The pleasure-pain aspect of experience plus sensations from
characteristic bodily reactions.

_Environment._ The objects and forces about us which affect us through
our senses.

_Environmental instincts._ Instincts which have originated, at least in
part, from the periodic changes in man's environment.

_Eugenics._ The science of race improvement through selective breeding
or proper marriages or in some cases through the prevention of marriage.

_Experience._ What we learn of the world through sensation and
perception.

_Fatigue._ Inability to work produced by work and which only rest will
cure.

_Feeble-minded._ Having important mental traits only poorly developed or
not at all.

_Feeling._ The pleasure-pain aspect of experience or of ideational
states.

_Function._ The use of a thing or process, also any mental process or
combination of processes considered as a unit.

_Genetic._ Having reference to origin and development.

_Habits._ Definite responses to definite stimuli depending upon bonds
established by use after birth.

_Heredity._ Transmission of characteristics from parent to offspring.

_Human nature._ The characteristics and tendencies which we have as
human beings, with particular reference to mind and action.

_Ideals._ Definite tendencies to act in definite ways. Ideas of definite
types of action with tendency toward the actions; ideas of definite
conditions, forms, and states together with a desire to experience or
possess them.

_Ideas._ Revived perceptions.

_Images._ Revived sensations, simpler than ideas.

_Imitation._ Acting as we see others act.

_Impulse._ Tende