Introduction to Psychology: Definition, Levels of Analysis, and Goals

Introduction to Psychology

  • Definition of Psychology

    • Psychology is the scientific study of mental processes and behavior.

    • It aims to understand ourselves and others through careful research designs and solid conclusions, much like humans have always been curious about "why did that person do that?" or "what must they be thinking?"

  • Mental Processes vs. Behavior

    • Mental Processes: Internal activities of the mind that are not directly observable from the outside.

      • Examples include: remembering a fact, imagining your bedroom, translating a foreign menu, or solving a problem in your head.

    • Behavior: Observable actions or activities performed by an individual.

      • Examples include: biking, talking, washing dishes, or shoveling snow.

Levels of Analysis in Psychology

  • Psychologists investigate mental processes and behaviors at multiple levels to achieve a full understanding.

  • Level of the Brain

    • Focuses on questions related to brain structure and function.

    • Example concerning memory: Investigating how individual neurons change with learning or how specific brain areas alter their shape or size as a result of learning.

  • Level of the Whole Person

    • Examines how individuals process information and interact with their environment.

    • Example concerning memory: Studying how individuals remember information, the strategies they employ for recall, and the types of errors they typically make.

  • Level of the Group

    • Investigates how social influences (e.g., family, friends, culture) outside the individual impact mental processes and behavior.

    • Example concerning memory: Examining how reminiscing with family members affects the accuracy and details of family memories.

Four Main Goals of Psychologists

  • Psychologists conduct investigations with one of four primary goals in mind:

    • 1. Description

      • Involves painting a factual picture of a mental process or behavior.

      • Answers the question: "What?"

      • Example: "What symptoms describe depression?" (What are the observable characteristics?)

      • Analogous to describing a newly discovered species or alien.

    • 2. Explanation

      • Aims to understand the underlying causes and reasons for mental processes or behaviors.

      • Answers the question: "Why?"

      • Example: "Why are depressive symptoms occurring?" (Considering factors like genetics, chemical imbalances, or negative life events.)

    • 3. Prediction

      • Naturally follows explanation; once causes are understood, future occurrences can be anticipated.

      • Answers the question: "When?" (or "under what conditions?")

      • Example: "When are we likely to see depressive symptoms?" (Anticipating triggers based on known causes.)

    • 4. Control

      • Involves applying knowledge to develop treatments and prevention strategies for mental processes or behaviors.

      • Answers the question: "How?" (or "how can we influence/change?")

      • Example: "How can we prevent depressive symptoms in the future?" (Focusing on interventions and prevention measures.)