Introduction to Psychology and Early Experimental Methodology

Etymological Origins of Psychology

• The term psychology (historically recorded as paychology) is derived from two original Greek roots:
  • ptyche: defined as "mind".
  • logos: defined as "study" or "knowledge".
• The literal etymological definition translates to the systematic study or body of knowledge regarding the mind.

Scope and Subject Matter of Psychological Inquiry

• Psychologists systematically study human activity across multiple domains of conscious and unconscious experience.
• Core dimensions of study include:
  • Behavioral outputs: what individuals do.
  • Cognitive operations: what individuals think.
  • Emotional and affective states: what individuals feel.
  • Internal mental phenomena: what individuals dream.
  • Perceptual processing: what individuals sense (sensations).

Founding of Psychology as an Experimental Science

• The establishment of psychology as a formal, independent experimental science is fundamentally credited to Wilhelm Wundt (Wund).
• This historical milestone transitioned the field from philosophical abstraction into empirical, lab-based scientific methodology.

Early Methodologies: Introspection

• Wilhelm Wundt pioneered and relied heavily on the primary methodology known as introspection.
• Definition of Introspection: Introspection is the deliberate inward focusing on one's own immediate mental states and internal subjective experiences.
• Subjects engaged in introspection observe and analyze their underlying thoughts, sensory perceptions, and feelings systematically.