ncy to action.

_Individualistic instincts._ Those instincts which more immediately
serve individual survival.

_Individual differences._ The mental and physical differences between
people.

_Inherited nature._ Those aspects of one's nature due directly to
heredity.

_Instincts._ Definite responses produced by definite stimuli through
hereditary connections in the nervous system.

_Intellectual habits._ Definite fixed connections between ideas;
definite ways of meeting typical thought situations.

_Intensity._ The amount or strength of a sensation or image, how far it
is from nothing.

_Interest._ The aspect given to experience or thinking by attention and
pleasure.

_Learning._ Establishing new bonds or connections in the nervous system;
acquiring habits; gaining knowledge.

_Memory._ The retention of experience; retained and reproduced
experience.

_Mental set._ Mental attitude or disposition.

_Mind._ The sum total of one's conscious states from birth to death.

_Nerve-path._ The route traversed by a nerve-stimulus or excitation.

_Original nature._ All those aspects of mind and body directly
inherited.

_Perceive._ To be aware of a thing through sensation.

_Perception._ Awareness of a thing through sensation or a fusion of
sensations.

_Plasticity._ Modifiability, making easy the formation of new bonds or
nerve-connections.

_Presupposition._ A theory or hypothesis on which an argument or a
system of arguments or principles is based.

_Primary._ First, original, elementary, perceptive experience as
distinguished from ideational experience.

_Reaction._ The action immediately following a stimulus and produced by
it.

_Reasoning._ Thinking to a purpose; trying to meet a new situation.

_Reflex._ A very simple act brought about by a stimulus through an
hereditary nerve-path.

_Response._ The act following a stimulus and produced by it.

_Retention._ Memory; modification of the nervous system making possible
the revival of experience.

_Science._ Knowledge classified and systematized.

_Sensation._ Primary experience; consciousness directly due to the
stimulation of a sense organ.

_Sense._ To sense is to have sensation, to perceive. A sense is a sense
organ or the ability to have sensation through a sense organ.

_Sense organ._ A modified nerve-end with accompanying apparatus or
mechanism making possible a certain form of stimulation.

_Sensitive._ Capable of giving rise to sensa