Megan Means

Performs the first significant experiments in localization of brain functions.

Measures individual differences in reaction time for astronomical observation.

Formulates the doctorine of specific nerve energies.

Derives the first quantative law in psychology.

Measures the rates of conduction of nerve impulses.

Publishes The Origin of Species, propounding the theory of evolution through natural selection.

Publishes Elements of Psychophyscis, presents various methods of measuring the relationship between stimuli and sensations.

Studies individual differences and applies Darwin's concept of selective adaptation to the evolution of races.

Opens the first formal psychological lab at the University of Leipzig.

Establishes the first psychological lab in America at Johns Hopkins University.

Publishes the first experimental studies in memory.

Principle of Psychology is published in the US.

At Cornell University establishes structuralism as major influence in American Psychology.

Performs some of the first controlled experiments on animal learning.

Publishes The Interpretation of Dreams, which presents many of his ideas on psychoanalysis.

Devise the first intelligence test.

Publishes the results of his studies on classical conditioning.

The publication of An Introduction to Social Psychology marks the formal inauguration of the field of social psychology.