Study Notes on A History of Modern Psychology
Chapter 4: A History of Modern Psychology
The New Psychology
Topics Overview
No Multitasking Allowed
The Founding Father of Modern Psychology
Wilhelm Wundt (1832-1920)
Other Developments in German Psychology
Hermann Ebbinghaus (1850-1909)
Franz Brentano (1838-1917)
Carl Stumpf (1848-1936)
Oswald Külpe (1862-1915)
Comment
Discussion Questions
No Multitasking Involved
In 1861, Wilhelm Wundt, a 29-year-old researcher, embarked on his inquiry into the nature of mental processes, specifically focusing on the span and limits of attention, without any prior notion of human multitasking capabilities.
Wundt was motivated by astronomer Friedrich Bessel's work on the "personal equation," which revealed individual differences in human reaction times when observing the transit of stars. Bessel's findings highlighted that even highly trained observers had slight, consistent variations in their measurements, suggesting individual mental processes played a role.
His primary focus was to experimentally assess whether an individual could consciously attend to two distinct stimuli concurrently. He tested this using a carefully designed apparatus:
Stimuli: The sound of a bell (auditory stimulus) and the sight of a pendulum's oscillation (visual stimulus). Both stimuli occurred at precisely controlled moments.
Subject: Wundt himself served as the participant, employing systematic introspection to report his experience.
Wundt concluded that it was impossible to attend to two stimuli simultaneously. Instead, attention had to switch rapidly between them, affirming that stimuli could only register sequentially in conscious awareness.
The registered time for both stimuli, indicating the minimum time required to shift attention from one stimulus to another and perceive both, was found to be one-eighth of a second (1/8 second), or approximately 125 milliseconds (125~ms). This pioneering work laid the foundation for the scientific study of attention.
The Founding Father of Modern Psychology
Wilhelm Wundt is widely recognized as the founding figure of modern experimental psychology, primarily due to his systematic and institutional efforts to establish psychology as a standalone scientific discipline.
His significant contributions include:
Establishing the first psychological laboratory: Opened in 1879 at the University of Leipzig, Germany, this laboratory marked the official beginning of experimental psychology. It provided a dedicated space for controlled experimentation and training.
Editing the first journal dedicated to psychology: Wundt founded Philosophische Studien (later renamed Psychologische Studien) in 1881, which became the primary outlet for publishing experimental psychological research.
Pioneering experimental psychology as a scientific discipline: He systematically applied experimental methods derived from physiology to study mental processes, moving psychology beyond philosophical speculation into empirical science.
Exploring foundational aspects of psychology: His research in the laboratory focused on elementary mental experiences such as sensation (e.g., intensity, quality of stimuli), perception (e.g., how sensations are interpreted), attention (e.g., the span and focus of consciousness), feelings (e.g., emotional responses), reactions (e.g., simple reaction times), and associations (e.g., how ideas connect).
Wundt's distinct role as a founder was more than a mere intellectual contribution; it involved a strategic and organizational effort to institutionalize the new science:
Integration of previous knowledge: He synthesized diverse philosophical and physiological concepts into a coherent framework for psychological inquiry.
Organizational skills: Wundt established a formal training program and research agenda that attracted students globally, disseminating his approach.
A promotion of psychology as a legitimate science: He vigorously advocated for psychology's independence from philosophy and physiology across academic forums and publications, defining its methods and subject matter.
Wilhelm Wundt (1832-1920)
Biographical Overview:
Wundt experienced a lonely childhood marked by an unpleasant familial environment, often feeling isolated and more comfortable in solitary pursuits.
His family had a history of scholarly pursuits, particularly in the sciences and humanities, which significantly influenced his academic journey and intellectual rigor.
He initially started studying medicine at the University of Tübingen and Heidelberg, earning his medical degree in 1856. However, he transitioned to physiology, studying under Johannes Müller and later becoming an assistant to Hermann von Helmholtz, where he gained expertise in experimental methods.
He served as a professor at the University of Leipzig for 45 years, from 1875 until his death in 1920. It was here, in 1879, that he founded the first formal psychological laboratory.
His teachings notably influenced numerous students from various countries (including many Americans) who went on to become established psychologists and establish their own laboratories, thereby propagating Wundt's experimental psychology globally.
Cultural Psychology
Beyond his laboratory work, Wundt also delved extensively into ethics, logic, and systematic philosophy to develop the concept of cultural psychology (also known as Völkerpsychologie).
This field, which Wundt spent the latter part of his career developing and detailed in his 10-volume work Völkerpsychologie (1900–1920), largely focused on the stages of human mental development as reflected in, and shaped by, collective human life, specifically how they manifest through:
Language (e.g., its development and structure reflecting thought processes),
Art (e.g., aesthetics and creative expression),
Myths (e.g., collective narratives and beliefs),
Social customs (e.g., norms and rituals),
Laws (e.g., societal regulations reflecting moral development), and
Morals (e.g., ethical frameworks influencing behavior).
Despite its theoretical significance and Wundt's extensive efforts, cultural psychology had minimal impact on American psychology. This was largely attributed to factors such as bad timing (competing with burgeoning behaviorism and functionalism), the difficulty of translating and disseminating a multi-volume German work, and overshadowing by other, more experimentally oriented areas of interest at the time.
The Study of Conscious Experience
The core subject matter of Wundt's psychology revolved around consciousness, which he believed could be studied through experimental methods, particularly immediate conscious experience. He aimed to analyze consciousness into its basic elements and discover how these elements are connected.
Voluntarism: A key concept in Wundt's system, emphasizing the mind's active capacity to organize and synthesize mental contents into higher-level thoughts and volitional acts. It highlights the conscious, active nature of human experience, where individuals can choose what to attend to, contrasting with more passive mechanistic views of the mind.
Experiences are categorized into two types:
Mediate experiences: Provide information about something external to the elements of direct experience. This is knowledge obtained through an intermediary, such as using a measuring instrument (e.g., knowing the temperature is 20 ext{°}C because a thermometer reads it, rather than feeling the warmth directly).
Immediate experiences: Are unbiased by interpretations, reflecting unfiltered perception. This refers to direct, raw conscious experience as it occurs, without any conceptual or intellectual filtering (e.g., feeling the warmth of the 20 ext{°}C room directly, rather than stating its numerical value).
The Method of Introspection
Introspection, a method Wundt refined and derived from the precise observational principles of physics and experimental physiology, is employed to study conscious experiences.
Defined as the examination of one’s own mind to observe and report personal thoughts or feelings, this method was conducted under Wundt's rigorous rules and conditions to ensure objectivity and reliability, aiming for a form of "internal perception" distinct from casual self-reflection.
Key conditions for Wundtian introspection included:
Observers must be able to determine when the process is introduced.
Observers must be in a state of attentiveness.
Observations must be repeatable multiple times.
The experimental conditions must be varied in terms of controlled stimulus manipulation.
Observers were required to undergo extensive training, approximately 10,000 individual introspective observations, to ensure reliability and accuracy in their reports. This training aimed to eliminate biases, develop standardized observation skills, and reduce the chance of interpretative errors, making their reports as objective as possible.
Elements of Conscious Experience
Wundt believed that conscious experiences could be analyzed through two basic, elementary forms: sensations and feelings. He sought to identify these irreducible components, much like chemists identified elements.
Sensations: These are elicited upon stimulation of a sense organ and the corresponding impulse reaching the brain. They are characterized by modality (e.g., visual, auditory) and intensity (e.g., brightness, loudness). Wundt focused on the attributes of sensations.
Feelings: These are subjective complements to sensations that do not directly arise from sense organs but are instead associated with them. They represent the emotional dimension of experience.
Wundt proposed a tridimensional theory of feelings, suggesting that all emotional states are complex combinations determined by three fundamental continuums of experience, each with opposing poles:
Pleasure/Displeasure: The hedonic quality of the experience.
Tension/Relaxation: The dynamic component, reflecting mental effort or ease.
Excitement/Depression: The intensity or arousal level of the experience.
For example, listening to a fast-paced, cheerful song might evoke feelings high in pleasure, excitement, and low in tension, while solving a difficult puzzle might evoke feelings high in tension, moderate pleasure (if successful), and moderate excitement.
The Fate of Wundt’s Psychology in Germany
Although Wundt's ideas rapidly spread throughout Germany and attracted a global student body, their long-term, direct influence on the mainstream of psychology, particularly beyond early structuralism, was somewhat limited.
Critics argued that Wundt's methodologies, focused primarily on elementary conscious processes under strict laboratory control, were less applicable for addressing complex, real-world problems such as learning, personality, and psychopathology, leading to a shift in American interests toward more functional and applied approaches by 1910.
Notably, key criticisms of Wundtian psychology included:
The inherent variability of introspection: Despite rigorous training, observers often reported differing accounts of their experiences, leading to debates about the objectivity and replicability of introspective data. This challenged its scientific validity.
Wundt's controversial political opinions: His staunch nationalism and strong pro-German stance during World War I alienated many international colleagues and students, further impacting the reception and spread of his work outside Germany.
Other Developments in German Psychology
While Wundt was instrumental, other psychological researchers in Germany did not adhere strictly to his conceptualizations and methods. They explored new avenues, often challenging or expanding upon his framework.
There was a shared objective among researchers to expand psychology as a legitimate field of science, moving beyond philosophical speculation. This led to a rich intellectual environment.
Germany initially emerged as the undisputed epicenter of this movement, largely due to its strong tradition in experimental physiology and philosophy, and the institutional support for new scientific disciplines.
However, psychological developments in England and America soon exhibited distinct themes and directions. These were notably influenced by:
Charles Darwin's theory of evolution: This led to a focus on adaptation, function, and individual differences, emphasizing how mental processes aid survival.
Francis Galton's work on individual differences: His research on mental testing and inheritance of mental characteristics shifted attention from general laws of consciousness to variations among individuals.
As a result, various factions and schools of thought within psychology, such as functionalism, behaviorism, and Gestalt psychology, started emerging from these foundational movements, diversifying the field's scope and methods.
Hermann Ebbinghaus (1850-1909)
Ebbinghaus made groundbreaking contributions to the study of higher mental processes, with a particular focus on learning and memory. His work demonstrated that complex mental functions previously considered beyond experimental reach could be studied quantitatively and objectively.
His research fundamentally challenged Wundt's views, as Wundt believed that higher mental processes like memory and learning could not be adequately studied experimentally due to their complexity and inaccessibility through introspection. Ebbinghaus proved otherwise, leading to a paradigm shift in how these areas were examined and researched.
Research on Learning
Prior to Ebbinghaus's influence, the study of learning was often analyzed through:
Pre-existing associations: Researchers would typically examine how previously formed associations influenced current learning or recall (e.g., studying how past experiences connected ideas).
Backward-looking approach: The analytical approach was predominantly retrospective, looking at already established memories or knowledge rather than the process of their formation.
Ebbinghaus introduced a novel and rigorous experimental method that revolutionized the study of memory:
Investigated the initial formation of associations: Instead of relying on established ones, he created conditions to observe the very first time associations were formed.
Controlled environmental conditions: He meticulously controlled external factors (e.g., time of day, distractions, number of repetitions) to isolate the variables affecting learning.
Highlighted the rate of formation of these associations: This was treated as a critical experimental aspect, allowing quantification of learning efficiency.
Research with Nonsense Syllables
Ebbinghaus faced challenges in utilizing meaningful words for his experiments due to existing associations and prior knowledge impacting results and introducing variability. People already have emotional and intellectual connections to words, making it difficult to study pure memory formation.
To mitigate this, he single-handedly developed and utilized nonsense syllables (CVCs – consonant-vowel-consonant sequences that lacked inherent meaning, like "DAX," "BUP," or "ZIL"), providing a clean slate for memory studies, as they eliminated pre-existing associations.
Multiple studies employing nonsense syllables were conducted, often with Ebbinghaus as his own subject, to quantify:
The speed of memorization: How many repetitions or how much time it took to learn a list of nonsense syllables to a criterion (e.g., two errorless reproductions).
The patterns of forgetting over time: How quickly and to what extent learned material was forgotten over specified intervals.
A significant result was illustrated through Ebbinghaus's forgetting curve, a graphical representation demonstrating the rates of retention related to time intervals, illustrating the rapid initial decline of memory over specified durations, followed by a slower steady decline.
Retention interval: Percentages depicting syllable retention were plotted against time intervals (e.g., minutes, hours, days). This curve typically shows a logarithmic decay, where most forgetting occurs soon after learning, with the rate of forgetting decreasing over time.
Franz Brentano (1838-1917)
As an intellectual precursor to both Gestalt and humanistic psychology, Brentano argued that psychology should primarily investigate mental activities or processes rather than simply focusing on static mental contents or elements. He believed the mind is inherently active and purposive.
He strongly opposed the introspective methods of Wundt, which he saw as artificially dissecting experience into elements. Instead, Brentano advocated for act psychology, a system emphasizing the processes of mental acts (e.g., seeing, hearing, judging, loving, hating) over mere representations of experiences (e.g., a specific color, a sound). For Brentano, the act of seeing was more important than the seen object itself.
Carl Stumpf (1848-1936)
Stumpf, a former student of Brentano, made significant contributions, including the psychological exploration of music (tonpsychology) and a theoretical approach known as phenomenology.
His phenomenology was an introspective method that involved studying experiences as they occurred, focusing on structured, meaningful wholes rather than reducing them to elementary components. This approach aimed at maintaining an unbiased assessment of immediate experience, especially in complex phenomena like musical tones, where the overall quality is more than the sum of its individual frequencies. Stumpf's work was influential in the development of Gestalt psychology.
Oswald Külpe (1862-1915)
Initially, Külpe followed Wundt's teachings and worked in his laboratory but later sought to address gaps and limitations he perceived in Wundt's system, particularly regarding the study of higher mental processes.
His main divergence rested in the belief that thought processes, even complex ones, could be experimentally studied, contrary to Wundt's assertion that they were only accessible through cultural psychology. This led him to establish the Würzburg School and propose:
Systematic experimental introspection: An innovative introspective methodology that used more complex tasks (e.g., judging weights, solving problems) and retrospective verbal reports recorded immediately after the task completion, aiming to uncover the processes involved in complex thought.
The concept of imageless thought: Through his research with this revised introspection, Külpe found evidence that some thought processes might occur without any accompanying sensory or imaginal content. This directly challenged Wundt's view that all thought must be composed of sensations and feelings, suggesting that abstract thought could exist independently of concrete imagery.
Comment on the Historical Context
The history of psychology is marked by divergent paths and developments, with the initial groundwork primarily initiated by German psychologists who laid the intellectual and institutional foundations for the field.
Over time, psychology evolved significantly beyond its philosophical roots and began adopting more rigorous scientific methodologies, especially experimental techniques. This gradual maturation and diversification led to psychology dispersing its center from Germany to various other global locations, particularly the United States, which became a leading hub for its development and application.
Selected Discussion Questions
Describe the differences between “founding” and “originating” in science, using Wundt as an example.
How was Wundt’s psychology influenced by the work of the German physiologists and the British empiricists? Describe the concept of voluntarism in detail and its significance within Wundt’s system.
Despite their many differences in approach and focus, what did the works of Wundt, Ebbinghaus, Brentano, and Stumpf have in common in their contributions to the development of psychology as a science?