Mechanism
The doctrine that natural processes are mechanically determined and capable of explanation by laws of physics and chemistry
Determinism
The doctrine that acts are determined by past events. The belief that every act is determined or caused by past events. In other words, we can predict the changes that occur in the operation of a clock - as well as on the universe - because we understand the order and regularity with which its parts function.
Reductionism
The doctrine that explains phenomena on one level (such as complex ideas) in terms of the phenomena on another level (such as simple ideas). For example,the workings of machines such as clocks could be understood by reducing them to their basic components
Automata
sophisticated mechanical contraptions, built to imitate human movement and action, were offered for popular entertainment. They were capable of performing marvelous and amusing feats with precision and regularity.
Charles Babbage
created a machine/ calculator that he called the "difference engine", and referred to himself as "the programmer" (page 27) His calculating machine marked the first successful attempt to duplicate human cognitive processes and develop form of artificial intelligence.(page 29)
Ada Countess of Lovelace
One of Babbage's loyal supporters (and one of the few people who understood the machine's operations) was the 18 year old math prodigy.Babbage called her his "Enchantress of Number." She referred to herself at the "Bride of Science." She was fascinated by Babbage's machine and published a clear explanation of how the calculating machine functioned & its potential uses & philosophical implications.
Empiricism
The pursuit of knowledge through observation of nature and the attribution of all knowledge to experience.
Rene Descartes
His most important work for the development of modern psychology was his attempt to resolve the mind-body problem. He believed that that the mind and body were indeed different essences. But he deviated from tradition by redefining the relationships.
Reflex action theory
The idea that an external object (a stimulus) can bring about an involuntary response. This theory is a precursor of modern behavioral stimulus-response (S-R) psychology, in which an external object (a stimulus) brings about an involuntary response, such as the jerk of your leg when the doctor taps your knee with a hammer. Reflexive behavior requires no though or cognitive processes; it appears to be completely mechanical or automatic
The Mind-Body Interaction
According to Descartes, the mind is nonmaterial—it lacks physical substance—but it is capable of though and other cognitive processes. Consequently, the mind provides human beings with information about the external work. In other words, while the mind has none of the properties of matter, it does have the capacity to think, and it is this characteristic that sets the mind apart from the material or physical world. Descartes conceived of the mind as unitary, which meant that it must interact with the body only at a single point. He believed that this point of interaction was located somewhere within in the brain because research has shown that sensations travel to the brain and movement originates within the brain; Descartes believes that the pineal body of conarium is the logical site for interaction because is the only singular part on the brain that is not divided into hemispheres.
Derived ideas
arrives from direct application of an external stimulus such as the sound of a bell or the sight of a tree.
Innate ideas
are not produced by objects in the external world impinging on the senses but develop instead out of the mind or consciousness
Positivism
The doctrine that recognizes that only natural phenomena or facts that are objectively observable.—Auguste Comte supported this idea
Auguste Comte
his positivistic approach referred to a system based exclusively on facts that are objectively observable and not debatable.
Materialism
The doctrine that considers the facts of the universe to be sufficiently explained in physical terms by the existence and nature of matter. Focused on physical properties—the anatomical and physiological structures of the brain.
Positivism, materialism, and empiricism
became the philosophical foundations of the new science of psychology.
John Locke, George Berkeley, David Hartley, James Mill, and John Stuart Mill.
Major British Empiricists include:
John Locke
Tabula Rasa= blank slate. He was an empiricist. He recognized two kinds of experiences: one deriving from sensation, and the other deriving from reflection. Ideas deriving from sensation= from direct sensory input from physical objects in the environment. The mind operates on these sensations by reflecting on them.
simple ideas
are elemental ideas that arise from sensation and reflection
complex ideas
are derived ideas that are compounded of simple ideas and thus can be analyzed or reduced to their simpler components
Association
The notion that knowledge results from linking or associating simple ideas to form complex ideas.
primary qualities
are characteristics such as size and shape that exist in an object whether or not we perceive them
secondary qualities
are characteristics such as color and odor that exist in our perception of the object.
George Berkeley
argued there were no primary qualities; there were only secondary qualities. To him, all knowledge depended on the experiencing or perceiving person. His position was given the name mentalism (perception is only one reality)
Mentalism
the doctrine that all knowledge is a function of mental phenomena and dependent on the perceiving or experiencing person.
Association of sensation
Berkeley applied the principle of association to explain how we come to know objects in the real world. This knowledge is essentially a construction or composition of simple ideas (mental elements) bound by the mortar of association. Complex ideas are formed by joining the simple ideas that are received through the senses, as he explained in An Essay Towards a New Theory Of Vision.
David Hartley
His fundamental law of association is contiguity, by which he attempted to explain the process of memory, reasoning, emotion, and voluntary and involuntary action. Ideas or sensation that occur together, simultaneously or successively become associated so that the occurrence of the other. Further, he proposed that repetition of sensation and ideas is necessary for associations to be formed.—he agreed with Locke that all ideas and knowledge are derived from experiences conveyed to us through the senses; there are no innate associations, no knowledge presented at birth.
Influence of mechanism
Hartley viewed the world in mechanistic terms. He suggested that the nerves were solid (not hollow tubes, as Descartes believed) and that vibrations of the nerves transmitted impulses from one part of the body to another. These vibrations initiated smaller vibrations in the brain, which were the physiological counterparts of ideas.
James Mill
He believed that the empiricists who argued that the mind was merely similar to a machine in its operations had not gone far enough. The mind WAS a machine - it functioned in the same predictable, mechanical way as a clock. It was set in operation by external physical forces and run by internal physical forces. According to this view, the mind is totally passive entity that is acted on by external stimuli. We respond to these stimuli automatically; we are incapable of acting spontaneously. He therefore had no place I his theory for the concept of free will.—He believed that the mind had no creative function because association is a totally automatic, passive process.
John Stuart Mill
(Mental chemistry) He argued against the mechanistic position of his father, James Mill, who viewed the mind as passive, something acted upon by external stimuli. To him, the mind played an active role in the association of ideas. He proposed that complex ideas are not merely the summation of simple ideas through the process of association. Complex ideas are more than the sum of the individual parts (the simple). According, to this view, which came to be known as creative synthesis—the proper combining of mental elements always produces some distinct quality that was not present in the elements themselves
creative synthesis
the proper combining of mental elements always produces some distinct quality that was not present in the elements themselves
Historiography
The principles, methods, and philosophical issues of historical research
Zeitgeist
the general spirit of the time
Personalistic Theory
the view that progress and change in scientific history are attributable to the ideas of unique individuals
Naturalistic Theory
The view that progress and change in scientific history are attributable to the Zeitgeist, which makes a culture receptive to some ideas but not to others.
School of thought
Refers to a group of psychologists who become associated ideologically, and sometimes geographically, with the leader of a movement.
Structuralism
early school of thought promoted by Wundt and Titchener; used introspection to reveal the structure of the human mind
Functionalism
early school of thought promoted by James and influenced by Darwin; explored how mental and behavioral processes function- how they enable the organism to adapt, survive, and flourish
Behaviorism
A theoretical orientation based on the premise that scientific psychology should study only observable behavior
Gestalt Psychology
early perspective in psychology focusing on perception and sensation, particularly the perception of patterns and whole figures
Psychoanalysis
Freud's theory of personality that attributes thoughts and actions to unconscious motives and conflicts; the techniques used in treating psychological disorders by seeking to expose and interpret unconscious tensions
Humanistic psychology
an approach to understanding human nature that emphasizes the positive potential of human beings
Cognitive Psychology
Focuses on the process of knowing, on how the mind actively organizes experiences
Mechanism
The doctrine that natural processes are mechanically determined and capable of explanation by the laws of physics and chemistry.
Determinism
The idea that people's behavior is produced primarily by factors outside of their willful control.
Reductionism
the reduction of complex systems to simpler components that are more manageable to study
Empiricism
the view that knowledge originates in experience and that science should, therefore, rely on observation and experimentation
Mind-Body Problem (Descartes)
The question of the distinction between mental and physical qualites
- Descartes explained the mind-body problem by stating that the mind influences the body but the body exerts a greater influence on the mind than previously supposed
- Descartes introduces an approach to the long-standing mind-body problem that focused attention on a physical-psychological duality
Reflex Action Theory (Descartes)
the idea that an external object can bring about an involuntary response
Derived Ideas (Descartes)
Arise from the direct application of an external stimulus such as the sound of a bell or the sight of a tree
Innate Ideas (Descartes)
Develop out of the mind or consciousness of an individual and are independent of sensory experiences or external stimuli
All of Descartes contributions included the following:
- The Mechanistic conception of the body
- The theory of reflex action
- The mind-body interaction
- The doctrine of innate ideas
- The localization of mental functions in the brain
Positivism (Auguste Comte)
the belief that knowledge should be derived from scientific observation
Materialism
stated that the facts of the universe could be described in physical terms and explained by the properties of matter and energy
John Locke (1632-1704)
- Was concerned primarily with cognitive functioning
- Mind acquires knowledge through experience
- Rejected the existence of innate ideas and argued that humans are born without knowledge
Simple Ideas (Locke)
elemental ideas that arise from sensation and reflection
Complex Ideas (Locke)
Compounded simple ideas and thus can be analyzed or reduced to their simpler components
Association
the notion that knowledge results from linking or associating simple ideas to form complex ideas
Primary Qualities (Locke)
Characteristics such as size and shape that exist in an object whether or not we perceive them
Secondary Qualities (Locke)
characteristics such as color and odor that exist in our perception of the object
Mentalism (George Berkeley)
doctrine that all knowledge is a function of mental phenomena and dependent
Repetition (Hartley)
notion that more frequently two ideas occur together, the more readily they will be associated
Creative Synthesis (John Stuart Mill)
the proper combining of mental elements always produces some distinct quality that was not present in the elements themselves
Extirpation
A technique for determining the function of a given part of an animal's brain by removing or destroying it and observing the resulting behavior changes.
Clinical Method
Posthumous examination of brain structures to detect damaged areas assumed to be responsible for behavioral conditions that existed before the person died.
- Developed by Paul Broca which would later name the part of the brain referred to as "Brocas area"
Electrical Stimulation
A technique for exploring the cerebral cortex with weak electric current to observe motor responses.
Who invented the ophthalmoscope?
Herman von Helmholtz
two-point threshold (Ernst Weber)
threshold at which two points of stimulation can be distinguished as such
just noticeable difference (JND)
The smallest difference in the amount of stimulation that a specific sense can detect.
absolute threshold
the minimum stimulation needed to detect a particular stimulus 50 percent of the time
Differential threshold
point of sensitivity at which the least amount of change gives rise to a change in sensation
Psychophysics (Fechner)
scientific study of the relations between mental and physical processes
Method of average error (method of adjustment)
consists of having subjects adjust a variable stimulus until they perceive it to be equal to a constant standard stimulus
Method of constant stimuli
involves two constant stimuli, and the aim is to measure the stimulus difference required to produce a given proportion of correct judgments.
The historical treatment of Freud's impact upon psychology is still incomplete because
many of his papers and letters will not be publicly available until later in the 21st century
Whose major contributions to the new psychology involved the two-point threshold and the just noticeable difference?
Ernst Weber
According to the lecture, Fritsch and Hitzig are responsible for discovering
the motor strip of the brain
With regard to the speed of the nerve impulse, perhaps the most important conclusion of Helmholtz's research for psychology was the determination
that thought and movement are not simultaneous
The____theory would support the claim: "Freud was instrumental in discovering psychoanalysis. If not for Freud, no other psychologist would have been able to uncover the human psyche."
personalistic
The idea proposed by Comte that science should be based totally on objectively observable facts is called
postivism
Before Descartes, the accepted point of view was that the interaction between mind and body was essentially unidirectional, that
the mind influenced the body
According to the textbook, which British empiricist championed women's rights and condemned the unequal status of women?
John Stuart Mill
According to Fechner, the point of sensitivity below which no sensation can be detected and above which sensation can be experienced is a definition of the
absolute threshold
David Kennebrook
Reverend Nevil Maskelyne's personal assistant . He was fired, because his observation of the time required for a start to pass from one point to another were slower than Maskelyne's- he was warned but the differences increased (difference was 5/10 of a second)
Friedrich Wilhelm Bissel
Investigated Kinnebrook's incident; interested in errors in measurement suspected that the so-called mistakes made by Maskelyne's assistant were attributable to individual differences-personal differences among people over which they have no control
Bessel's 1st conclusion
Astronomers would have to take into account the nature of the human observer, because personal characteristics and oerceptions would necessarily influence the reported observations.
Bessel's 2nd conclusion
If the role of the human observer had to be considered in astronomy, then surely it was also important in every other science that telied on observational methods.
Personal Equation (Bessel)
Differences into observation times would be found among all astronomers
Johanes Mueller
Advocated the use of the experimental method. Proposed that the stimulation of a particular nerve always leads to a characteristic sensation, because each sensory nerve has its own specific energy.
Marshal Hall
Concluded that different levels of behavior arise from different parts of the brain. Observed that decapitated animals continued to kove for some time when he stimulated various nerve endings
Pierre Flourens
Destroyed parts of the brain and spinal cord in pigeons and observed the consequences. Concluded that the cerebrum controls higher mental processes, parts of the midbrain control visual and auditory reflexes, and other vital organs.
Extirpation Method
Research attempts to determine the function of a given part of the brain by removing or destroying it and observingthe resulting changes in the animal's behavior.
Clinical Method
Post humous examination of brain structures to detect damaged areas assumed to be responsible for behavioral conditions that existed before the person died.
Paul Broca
Performed an autopsy on a man who for many years had been unable to speak intelligibly. Revealed a lesion in the third frontal convulsion of the left hemisphere of the cerebral cortex. Named this area, "Broca's Area"
Electrical Stimulation
Technique for exploring the cerebral cortex with weak electrical current to oberve motor responses
Fritsh and Hitzig
Found that stimulating certain cortical areas in tabbits and dogs resulted in motor responses, such as movement of the front and back legs.
Franz Josef Gall
Dissected the brains of deceased animals and humans. His work confirmed the existence of both white and gray metter in the brain, the nerve fibers connecting each side of the brain to the opposite of the spinal cord, and the fivers connecting both halved of the brain.
Cranioscopy (Gall)
Later known as phrenology, proposed that the shape of a person's skull revealed his or her intellectual and emotional characteristics. Bulges and dents in the bony surface of your skull reveals a lot about your intellectual or emotional functioning.
Luigi Galvani
Suggested that nerve impulses were electrical. Believed that the nervous system was essentially a conductor of electrical impulses and that the central nervous system functioned like a switching station, shunting the impulses onto either sensory or motor nerve fibers.
Santiago Ramon y Cajal
Direction of travel for nerve impulses in the brain and spinal cord
Berlin Physical Society
Former students of Johanes Mueller; all phenomena could be accounted for by the principles of physics. Connected physio with physics (physio in the framework of mechanism)
German History
Paved the way for an experimental science of physiology. Experimental psychology was firmly established and recognized to a degree not yet achieved in France and England.
Germans were not skeptical about applying science to the mind
They plunged ahead unconstrained, using the tools of science to explore and measure all facts of life.
Greater opportunities to learn and practice the new scientific techniques
Well equipped labs, many universities, highly paid faculty and state of the art laboratory equipment.
Gustav Fechner Mind and Body: Quantitative Relationship
mind and body are not regarded as a real dualism, but are different sides of one reality. They are separated in the form of sensation and stimulus; that is, what appears from a subjective viewpoint as the mind, appears from an external or objective viewpoint as the body
Fechner's Law
(sensation intensity = C log stimulus intensity)
Absolute threshold (Fechner)
The point of sensitivity below which no sensations can be detected and above which sensations can be experienced
Differential Threshold (Fechner)
The point of sensitivity at which the least amount of change in a stimulus gives rise to a change in sensation.
Psychophysics (Fechner)
The scientific study of the relations between mental and physical processes.
Hermann von Helmholtz measurement of neural impulses
Recorded the delay between stimulation of the nerve near the muscle and the muscle's response, and did the same for stimulation farther from the muscle. These measurements yielded the conduction speed of the neural impulse: 90 feet per second
Helmholtz reaction times of sensory nerves
Suggested that thought and movement follow each other at a measurable interval and do not occur simultaneously, as had been thought.
Helmholtz eye research
Investigated external eye muscles and the mechanism by which internal eye muscles focus the lens.
Helmholtz research on audition
Perception of tones, the nature of harmony and discord, and the problem of resonance.
Ernest Hemrich Weber
Research in higher senses of vision and hearing
Two point thresholds (Weber)
The threshold at which two points of stimulation can be distinguished as such
Just noticeable difference (Weber)
The smallest difference between two physical stimuli
David Kennebrook
Reverend Nevil Maskelyne's personal assistant . He was fired, because his observation of the time required for a start to pass from one point to another were slower than Maskelyne's- he was warned but the differences increased (difference was 5/10 of a second)
Friedrich Wilhelm Bissel
Investigated Kinnebrook's incident; interested in errors in measurement suspected that the so-called mistakes made by Maskelyne's assistant were attributable to individual differences-personal differences among people over which they have no control
Bessel's 1st conclusion
Astronomers would have to take into account the nature of the human observer, because personal characteristics and oerceptions would necessarily influence the reported observations.
Bessel's 2nd conclusion
If the role of the human observer had to be considered in astronomy, then surely it was also important in every other science that telied on observational methods.
Personal Equation (Bessel)
Differences into observation times would be found among all astronomers
Johanes Mueller
Advocated the use of the experimental method. Proposed that the stimulation of a particular nerve always leads to a characteristic sensation, because each sensory nerve has its own specific energy.
Marshal Hall
Concluded that different levels of behavior arise from different parts of the brain. Observed that decapitated animals continued to kove for some time when he stimulated various nerve endings
Pierre Flourens
Destroyed parts of the brain and spinal cord in pigeons and observed the consequences. Concluded that the cerebrum controls higher mental processes, parts of the midbrain control visual and auditory reflexes, and other vital organs.
Extirpation Method
Research attempts to determine the function of a given part of the brain by removing or destroying it and observingthe resulting changes in the animal's behavior.
Clinical Method
Post humous examination of brain structures to detect damaged areas assumed to be responsible for behavioral conditions that existed before the person died.
Paul Broca
Performed an autopsy on a man who for many years had been unable to speak intelligibly. Revealed a lesion in the third frontal convulsion of the left hemisphere of the cerebral cortex. Named this area, "Broca's Area"
Electrical Stimulation
Technique for exploring the cerebral cortex with weak electrical current to oberve motor responses
Fritsh and Hitzig
Found that stimulating certain cortical areas in tabbits and dogs resulted in motor responses, such as movement of the front and back legs.
Franz Josef Gall
Dissected the brains of deceased animals and humans. His work confirmed the existence of both white and gray metter in the brain, the nerve fibers connecting each side of the brain to the opposite of the spinal cord, and the fivers connecting both halved of the brain.
Cranioscopy (Gall)
Later known as phrenology, proposed that the shape of a person's skull revealed his or her intellectual and emotional characteristics. Bulges and dents in the bony surface of your skull reveals a lot about your intellectual or emotional functioning.
Luigi Galvani
Suggested that nerve impulses were electrical. Believed that the nervous system was essentially a conductor of electrical impulses and that the central nervous system functioned like a switching station, shunting the impulses onto either sensory or motor nerve fibers.
Santiago Ramon y Cajal
Direction of travel for nerve impulses in the brain and spinal cord
Berlin Physical Society
Former students of Johanes Mueller; all phenomena could be accounted for by the principles of physics. Connected physio with physics (physio in the framework of mechanism)
German History
Paved the way for an experimental science of physiology. Experimental psychology was firmly established and recognized to a degree not yet achieved in France and England.
Germans were not skeptical about applying science to the mind
They plunged ahead unconstrained, using the tools of science to explore and measure all facts of life.
Greater opportunities to learn and practice the new scientific techniques
Well equipped labs, many universities, highly paid faculty and state of the art laboratory equipment.
Gustav Fechner Mind and Body: Quantitative Relationship
mind and body are not regarded as a real dualism, but are different sides of one reality. They are separated in the form of sensation and stimulus; that is, what appears from a subjective viewpoint as the mind, appears from an external or objective viewpoint as the body
Fechner's Law
(sensation intensity = C log stimulus intensity)
Absolute threshold (Fechner)
The point of sensitivity below which no sensations can be detected and above which sensations can be experienced
Differential Threshold (Fechner)
The point of sensitivity at which the least amount of change in a stimulus gives rise to a change in sensation.
Psychophysics (Fechner)
The scientific study of the relations between mental and physical processes.
Hermann von Helmholtz measurement of neural impulses
Recorded the delay between stimulation of the nerve near the muscle and the muscle's response, and did the same for stimulation farther from the muscle. These measurements yielded the conduction speed of the neural impulse: 90 feet per second
Helmholtz reaction times of sensory nerves
Suggested that thought and movement follow each other at a measurable interval and do not occur simultaneously, as had been thought.
Helmholtz eye research
Investigated external eye muscles and the mechanism by which internal eye muscles focus the lens.
Helmholtz research on audition
Perception of tones, the nature of harmony and discord, and the problem of resonance.
Ernest Hemrich Weber
Research in higher senses of vision and hearing
Two point thresholds (Weber)
The threshold at which two points of stimulation can be distinguished as such
Just noticeable difference (Weber)
The smallest difference between two physical stimuli
Wilhelm Wundt
Founder of modern psychology; • Relied on the experimental methods of the natural sciences, particularly the techniques used by the physiologists. He adapted these scientific methods of investigation for the new psychology and proceeded to study its subject matter in the same way physical scientists were studying their own subject matter.
Voluntarism (Wundt)
derived from the word volition defined as the act or power of willing. Refers to the power of will to organize the mind's contents into higher- level thought processes.
Mediate experience (Wundt)
provides us with information or knowledge about something other than the elements of the experience
Immediate experience (Wundt)
unbiased or untainted by any personal interpretations
Introspection (Wundt)
examination of one's own mental state "internal perception"
Wundt's explicit rules and conditions-
1. Observers must be able to determine when the process is to be introduced.2. Observers must be in a state of readiness or strained attention
3. It must be possible to repeat the observation several times
4. It must be possible to vary the experimental conditions in terms of the controlled manipulation of the stimuli
Wundt's 2 elements of conscious experience
Sensations and feelings
Sensation (Wundt)
aroused whenever a sense organ is stimulated and the resulting impulses reach the brain. Can be classified by intensity, duration, and sense modality.
Feelings (Wundt)
subjective complements of sensations but do not arise directly from a sense organ
Tri-dimensional theory of feelings ( Wundt)
Wundt's explanation for feeling states based on three dimensions: pleasure/displeasure, tension/relaxation, and excitement/depression. The feeling state could be located on a continuum ranging from highly agreeable to highly disagreeable.
Doctrine of Apperception ( Wundt)
The process by which mental elements are organized. Process of organizing mental elements into whole is a creative synthesis, which creates new properties from the building up or combining of the elements. "Whole is different than the sum of the parts"
Wundt's 3 goals for psychology
1. Analyze conscious processes into their basic elements
2. Discover how these elements are synthesized or organized
3. Determine the laws of connection governing the organization of the elements.
Herman Ebbingaus
First to investigate learning and memory experimentally
Nonsense Syllables (Ebbinghaus)
revolutionized the study of learning, syllables presented in a meaningless series to study memory processes. The nonsense syllables he created, typically formed of two consonants with a vowel in between.
Forgetting Curve (Ebbingaus)
showed that the material is forgotten rapidly in the first few hours after learning and more slowly thereafter.
Act Psychology (Brentano)
focused on mental activities (e.g. seeing) rather than on mental contents (e.g. that which is seen)
• Acts cannot be accessible through introspection.
• The study of mental acts require observation on a larger scale.
Brentano advanced two ways to study mental acts
1. Through memory (recalling the mental processes involved in a particular mental state)
2. Through imagination (imagining a mental state and observing the accompanying mental processes)
Carl Stumpf
established a center for the collection of recordings of primitive music from many countries throughout the world.
Phremenology (Stumpf)
examined experience as it occurred and did not try to reduce experience to elementary components. Also, an approach to knowledge based on an unbiased description of immediate experience as it occurs, not analyzed or reduced to elements.
Oswald Kulpe
studied conscious experience as it occurred, not the memory of it after it had occurred.
Systematic experimental introspection (Kulpe)
used retrospective reports of subjects' cognitive processes after they had completed an experimental task.
Imageless Thought (Kulpe)
represents the idea that meanings in thought do not necessarily involve specific images.
Oswald Kulpe's Goal
expand Wundt's conception of psychology's subject matter to encompass the higher mental processes and to refine the introspective method.
Karl Marbe
found that sensations and images play no part in the process of judgment, subjects retain a mental image of the first weight and compared it with a sensory impression of the second weight.
Henry Watt
demonstrated in word association task (asking subjects to respond to a stimulus word), subjects had little relevant information to report about their conscious process of judgment. This finding reinforced Kulpe's contention that conscious experience could not be reduced solely to sensations and images
Georg Elias Muller
studies were most prominent in memory. He studied indistinct and distinct images effect on memory. He theorized that thinking of indistinct images made memorization and learning more effective.
Memory Drum (Muller)
a device used for verbal learning research.
Retroactive Interference (Muller)
unrelated material makes it difficult to learn new material