Introduction to Psychology — Comprehensive Study Notes

Attendance, Decorum, and Policy Overview

• Attendance: Attendance is taken at every scheduled class. If you miss a class, you must find out the missed material or announcements. Excused absences require preapproval by the instructor or an acceptable, documented reason (e.g., severe illness, family emergencies, childcare issues, hospitalization, dangerous weather conditions, unavoidable transportation problems).
• If you accumulate 20% absences, you may be dropped from the course without warning.
• No seat-in policy is allowed.

Class Decorum

• Onsite: Silence at all times; no games during class; avoid unrelated activities; proper uniform required; encouraged to participate in recitations and answer questions.
• Online: Silence; dress appropriately; treat instructor and classmates with respect in all communications; avoid using caps lock (interpreted as yelling); use tone carefully in humor or sarcasm; express differing opinions respectfully; no personal or insulting remarks.
• Gender Identity and Expression: Students should use their lived names; instructors and others should honor those names. Harassment, bullying, and discrimination are not tolerated and will be sanctioned after due process.

Policy on Examinations and Labs

• All laboratory exercises must be submitted on time; no make-up labs or unit tests unless a valid/acceptable reason is provided. Missed exams due to unexcused absences score 0. If you cannot attend, discuss with the instructor to arrange alternatives. Valid documentation is required for unavoidable absences.

Use of Technology

• No inappropriate use of electronic devices during class (laptops, tablets, phones). Devices are prohibited unless the instructor permits. Phones must be silent or vibrate and used only for emergencies. Other devices should be off and stored away. All devices must be put away during examinations.

Academic Misconduct

• No copying, plagiarism, or cheating. Violations invalidate the score. The instructor assigns an overall grade of 5.0 for cheating. Violations are handled per the Student Handbook.

AI-Facilitated Misconduct

• The college promotes responsible AI use: use AI tools as assistants, not masters. Only 20% of AI-generated content will be accepted to ensure originality. More than 20% AI-generated work on three occasions can lead to zero on assignments and sanctions.

Students with Special Needs and/or Disabilities

• If you have difficulties with the course for any reason, contact the instructor. For accommodations, contact the Guidance Office or the provided Facebook pages; scholarships and financial aid are available via Student Welfare. Inform university medical personnel of chronic conditions requiring emergency attention.

Introduction to Psychology — Course Purpose

• Where curiosity meets the mind: understanding why people (including you) do what they do.
• Goal: Provide knowledge and skills across topics like memory, brain function, relationships, child development, mental health, plus transferable skills such as communication, teamwork, independence, and adaptability.

What’s in Introduction to Psychology?

• Topics you’ll learn: memory, brain function, relationships, child development, mental health.
• Skills developed: communication, teamwork, independence, adaptability.

What is Psychology? (Kalat’s Definition)

• Psychology is the scientific study of behavior and mental processes.
• It includes observable behaviors (speaking, moving, reacting) and internal experiences (thoughts, emotions, memories).
• Emphasizes science, research methods, and systematic inquiry into behavior and mental processes.
  $\text{Psychology} = \text{scientific study of behavior and mental processes}$

Etymology: Origin of the Term “Psychology”

• From Greek roots: "psyche" meaning mind or soul, and "logos" meaning word.
• Literally, the study of the mind/soul.
• The field retained this broad sense until the early 1900s; around 1920, there was a shift toward studying behavior rather to the mind per se.

Why Study Psychology? Mind vs. Behavior

• Early view: mind is unobservable; behavior is observable and tractable.
• Metaphor: mind as a process, not a thing (e.g., like the flow of a river rather than a fixed object).
• The discipline increasingly defined itself as the study of behavior, sensation, perception, learning, memory, hunger/thirst, sleep, attention, development, and more.

Processing Illusion Example (Illusion at the Top Line)

• When asked to judge line length, the top line may appear longer due to contextual processing, not actual length difference.
• This illustrates perception versus physical stimulus, a key area in sensation and perception.

Psychology Beyond Behavior

• Psychology includes: sensation and perception, learning and memory, hunger and thirst, sleep, attention, child development, and more.

General Points About Psychology

• It depends: behavior varies with age, genetics, health, past experiences, wakefulness, gender, culture, time of day, room temperature, and hunger level.
• Question wording influences responses and interpretations.
• Research progress depends on measurement quality and methods.
• Some topics (sensory processes, learning, memory) are easier to measure; others (emotion, personality) are harder to measure.
• Confidence in conclusions should align with the strength of evidence.
• Not all opinions are based on solid evidence; the text explains when research supports a conclusion and when it does not.

It Depends

• Many behavioral outcomes depend on multiple contextual factors (age, genetics, health, experiences, state of arousal).
• Variation across culture, gender, time of day, environment, and preceding questions/asker.
• Measurement and interpretation are central to establishing robust conclusions.

Progress and Evidence in Psychology

• Sydney Brenner quote (paraphrase): Progress in science depends on new techniques, new discoveries, and new ideas, in that order.
• Psychology has progressed most in topics that are easier to measure; slower progress in more abstract areas.

Confidence in Conclusions

• Conclusions should reflect evidence strength.
• The text provides detailed descriptions of studies to illustrate evidence strength.

Major Philosophical Issues in Psychology

• Deteminism vs. Free Will
• Determinism: Every event has a cause or determinant that could be observed/measured; internal forces follow cause-and-effect laws.
• Free Will: Behavior is caused by independent decisions, but often the will is shaped by heredity and experience; definition of “free” matters.
• Dualism vs. Monism
  • Dualism: Mind and brain are separate; the mind can influence the brain (and body) in ways that conflict with conservation of matter/energy.
  • Monism: Conscious experience is inseparable from the physical brain; mind cannot exist independently of brain.

Brain Activity and Cognition: Resting State and Task Processing

• Brain imaging examples (e.g., PET): different tasks activate different brain areas; red indicates highest activity, followed by yellow, green, blue.
• Question: Do brain activity cause thoughts or do thoughts cause brain activity?
• Answer: In some accounts, brain activity and mental activity are the same thing; attempts to separate cause and effect are tricky.

The Nature-Nurture Debate

• How much of behavior/traits/mental processes come from genetics (nature) vs. environment/experience (nurture).
• Emphasizes interaction: both heredity and environment shape behavior.

Service Providers to Individuals

• Clinical Psychologist: Advanced degrees (Master’s, PhD, PsyD); diagnose and treat various psychological issues; some teach or do research; many practice clinically.
• Psychiatry / Psychiatrist: Medical doctors (MDs) with four years of psychiatric training; can prescribe medications; focus on medication management; often work in hospitals.
• Psychoanalysts: Therapy based on Freud’s methods; focus on unconscious thoughts; can be practitioners with various credentials depending on the institute.
• Clinical Social Worker: Master’s in social work with specialization in psychological problems; similar to clinical psychologists in scope but with different training.
• Counseling Psychologist: Doctorate required (PhD, PsyD, or EdD); helps with education, vocation, marriage, health maintenance, etc.; works in education, health centers, private practice, etc.
• Forensic Psychologist: Psychologists with training in legal issues; advise on competency to stand trial, dangerousness for parole decisions, etc.

Service Providers to Organizations

• Industrial/Organizational Psychology (I/O): Hiring, team development, compensation, performance feedback, organizational structure, and workplace design considering economic and regulatory factors.
• Human Factors/Ergonomics: Design of devices and interfaces to maximize safety and usability; merges psychology, engineering, and computer science.
• Military Psychologist: Similar to I/O; assesses fit for roles; research on battlefield stress, sleep deprivation, leadership, cross-cultural dynamics.
• School Psychologist: Work with students’ educational needs; plan development and guidance for teachers on implementation.
• Community Psychologist: Promote mental health and well-being at the community level; research, program development, policy.

Psychologists in Teaching and Research

• Developmental Psychologist: Study how behavior changes with age; example: language development from early years to later life.
• Learning and Motivation Specialists: Explore how past behavior and current motivation influence present behavior; reinforcement histories.
• Cognitive Psychology: Study thought and knowledge; how people make decisions, solve problems, and use language; includes both strengths and weaknesses of cognition.
• Biopsychologist / Behavioral Neuroscientist: Explain behavior via biological factors (nervous system activity, drugs, hormones, genetics, evolution).
• Evolutionary Psychology: Explain behavior via evolutionary history and pressures that favored certain behaviors.

Social and Cross-Cultural Psychology

• Social Psychologist: How individuals influence others and how groups influence individuals (e.g., eating more in groups).
• Cross-Cultural Psychology: Compare behavior across cultures to identify universal vs. culture-specific aspects of human behavior.

Psychometricians and Testing in the Philippines

• Psychometrician: Administers, scores, and interprets psychological tests under supervision; works in clinical, educational, and organizational settings.
• Philippine Duties: Design/administer/score tests (intelligence, aptitude, personality); interpret results; gather data via interviews, observations, tests; safeguard confidentiality; coordinate with staff; maintain logs; stay current with PRC standards (Philippine Psychology Act of 2009, R.A. 10029).

Psychology — A Historical Perspective: Introduction to the Field’s Roots

• The Early Era: Psychology began in the late 1800s as an effort to apply natural science methods to questions about the mind; textbooks often relied on common sense; early focus included senses and biology.
• Freud and Modern Clinical Psychology: Freud popularized psychotherapy with dream/memory analysis; influence was enormous but controversial.
• Wundt and the First Psychological Laboratory (1879): Introduced systematic study of conscious experience and elements of mind; father of experimental psychology.
• Introspection (Wundt): Participants report sensations; used to analyze how experiences change with stimuli; limitations later recognized (subjective, unverifiable).
• Titchener and Structuralism: Structuralism aimed to break mind into basic components (sensations, feelings, images) via introspection; measured features like shape, color, texture with a lemon example. Structuralism declined due to issues with verifying inner experiences and testability.
• James and Functionalism: William James emphasized the function and purpose of mental processes (adaptive behavior) rather than elements; influenced by pragmatic questions about habits, attention, object recognition, and intention-to-action transformation.
• The Laws of Learning Era: Early 20th century sought universal laws of learning; experiments often used animals (rats in mazes) to derive general learning principles.
• Hull and Tolman: Hull proposed a mathematical theory of learning (habit strength) with a formula, incorporating trials and empirical variables; Tolman argued for cognitive maps and goal-directed behavior in maze tasks, expanding the scope beyond simple stimulus-response.
• Animal Studies in Learning: Early maze experiments revealed complexity beyond simple reinforcement; debates about measuring animal intelligence across species; modern focus shifted to mechanism and evolution rather than ranking intelligence.
• Measuring Human Intelligence: Francis Galton pioneered measurement and ideas about heredity; Alfred Binet developed the first useful intelligence test (1905).
• Darwin and Comparative Psychology: Darwin’s natural selection influenced psychology, suggesting shared features and possible intelligence across species; led to early comparative psychology experiments (e.g., delayed-response and detour tasks).
• The Rise of Psychology as a Science: Emphasis on empirical methods, measurement, and the application of psychology to education, health, and policy; later developments included cognitive psychology, neuroscience, and positive psychology.
• Mary Whiton Calkins and Margaret Floy Washburn: Early female psychologists who made significant contributions; Calkins became APA president; Washburn conducted influential work in animal behavior and schooling.
• Modern Trends: Since the 1960s, cognitive psychology and neuroscience gained prominence; positive psychology emerged to study aspects leading to happiness and well-being; applied psychology expanded into health, sports, and broader well-being.
• Diversity and Ethics: Psychology expanded to reflect human diversity, while ethical and professional standards evolved; ongoing critique and revision of early assumptions.

Wilhelm Wundt, Structuralism, and the Shift in Methods

• Wundt’s laboratory (Leipzig) marked the formal start of experimental psychology; focus on sensation, perception, and attention.
• Introspection was central to early methods but faced issues of reliability and verifiability; the field moved toward more objective, experimental methods.

The Functionalist Tradition: James

• Focus on how mental processes enable adaptation and functioning in daily life.
• Influenced subsequent research on habits, attention, perception, and the motivations behind actions.

The Learning Laws Era: Hull and Tolman

• Hull: Proposed a quantitative formula for habit strength SHR, incorporating trials (N) and an empirical factor (a) among other variables:
  $SHR = 1 - (10 - aN)$
• Tolman: Emphasized cognitive aspects (expectations, goals) in maze navigation; argued for purposive behavior beyond simple reinforcement.
• The era highlighted a shift toward a theory-driven, measurable approach to learning, but later faced criticism for oversimplification.

Early Sensation and Perception Research

• Early studies distinguished physical stimuli from psychological perceptions (e.g., brightness vs. physical intensity).
• Psychophysical functions describe the relation between physical stimulus intensity and perceived intensity; researchers demonstrated that perceived brightness does not scale linearly with physical intensity.
• Figure concepts include psychophysical functions linking physical inputs to perceptual outputs.

Darwin, Animal Intelligence, and Comparative Psychology

• Darwin (1859, 1871) framed evolution and shared ancestry across species; encouraged studying animal cognition to infer mechanisms of behavior.
• Early comparative psychology used tasks like delayed-response and detour problems to assess animal intelligence; results revealed species-specific strengths and limitations.
• Modern focus shifted from ranking intelligence across species to understanding mechanisms and evolution of behavior.

Measuring Human Intelligence

• Francis Galton pioneered measurement and ideas about heredity; his methods were primitive.
• Alfred Binet developed the first useful intelligence test (1905), laying groundwork for modern IQ testing.

Freud to Modern Clinical Psychology

• Freud introduced psychoanalytic theory and psychodynamic approaches; his influence shaped psychotherapy for decades.
• Mid- to late-20th century saw clinical psychology emerge as a distinct field with evidence-based therapies and broader training beyond psychiatrists.

Cognitive and Neuroscience Revolutions

• Cognitive Psychology: Emphasis on internal thought processes—how people think, learn, remember, and solve problems.
• Neuroscience: Advances in brain imaging (e.g., PET) enabled study of brain activity related to cognition and behavior without invasive procedures.
• Positive Psychology: Shift toward studying traits and experiences that support happiness, resilience, and well-being.
• Applied Psychology: Growth in health, sports, and occupational psychology; focus on real-world outcomes and behavior change.

Diversity, Ethics, and Professional Practice

• The field expanded to include more diverse populations and ethical considerations; longstanding debates about representation and equity.
• Mary Calkins and Margaret Washburn highlighted early barriers faced by women in psychology, yet they achieved leadership roles and lasting contributions.
• Ongoing evaluation of theories and models: some will endure, others will be discarded as science advances.
• Analogy to scientific progress: like a maze, researchers learn through trial and error; failures refine future questions and approaches.

Closing Reflection: The Nature of Scientific Progress in Psychology

• Psychology is an evolving science that blends measurement, theory, and application.
• Progress involves developing methods, testing theories, and revising ideas in light of new evidence.
• The field continuously revisits foundational questions (nature vs. nurture, mind vs. brain, free will vs. determinism) while embracing new technologies and cross-disciplinary insights.

Key Figures and Concepts to Remember

• Wilhelm Wundt: Founder of experimental psychology; introspection and basic elements of experience.
• Edward Titchener: Structuralism; focus on elemental sensations; limitations in verifiability.
• William James: Functionalism; focus on purposes of mental processes; habits and behavior in daily life.
• Clark Hull: Mathematical model of learning; habit strength SHR; complexity of added variables.
• Edward Tolman: Cognitive maps and purposive behavior; challenge to pure behaviorism.
• Darwin: Evolutionary perspective; comparative psychology implications.
• Francis Galton: Early intelligence measurement; heredity ideas.
• Alfred Binet: First useful intelligence test; foundation of modern IQ testing.
• Sigmund Freud: Psychoanalysis; unconscious processes; dream analysis.
• Mary Calkins and Margaret Washburn: Pioneering women in psychology; leadership roles.

Quick Reference: Selected Terms and Concepts

• Behavior: Observable actions and responses.
• Mental processes: Internal experiences (thoughts, feelings, memories).
• Psychophysics: Relationship between physical stimuli and perceptual experience.
• Psychometrician: Professional who administers/ interprets psychological tests.
• DSM-IV: Diagnostic manual for mental illness (standard reference in clinical settings).
• DSM vs. modern criteria: Evolution of diagnostic manuals over time.
• PRC Standards: Professional Regulation Commission standards; R.A. 10029 (Philippine Psychology Act of 2009).

Graphical and Timeline Aids (If You Have the Figures)

• Timeline figure (historical events): Includes key events from Descartes to 2002 focusing on psychology’s development.
• Figure 1.4 and Figure 1.5 illustrate milestones and psychophysical relationships between stimulus and perception.
• Figure 1.6-1.8 depict animal learning tasks and memory/conditioning research.

Summary Takeaways

• Psychology is both a science of behavior and an exploration of mental processes, rooted in experimental methods and continual revision.
• The field spans multiple subdisciplines, from clinical work to organizational applications, and from basic research to applied practice.
• Historical progress shows an evolution from introspection and element-focused approaches to functional, cognitive, neuroscientific, and applied perspectives.
• Ethical considerations, inclusivity, and the responsible use of tools (including AI) are integral to modern practice.