Introspection

Last updated

Introspection is the examination of one's own conscious thoughts and feelings. [1] In psychology, the process of introspection relies on the observation of one's mental state, while in a spiritual context it may refer to the examination of one's soul. [2] Introspection is closely related to human self-reflection and self-discovery and is contrasted with external observation.

Contents

It generally provides a privileged access to one's own mental states, [3] not mediated by other sources of knowledge, so that individual experience of the mind is unique. Introspection can determine any number of mental states including: sensory, bodily, cognitive, emotional and so forth. [3]

Introspection has been a subject of philosophical discussion for thousands of years. The philosopher Plato asked, "…why should we not calmly and patiently review our own thoughts, and thoroughly examine and see what these appearances in us really are?" [4] [5] While introspection is applicable to many facets of philosophical thought it is perhaps best known for its role in epistemology; in this context introspection is often compared with perception, reason, memory, and testimony as a source of knowledge. [6]

In psychology

Wundt

It has often been claimed that Wilhelm Wundt, the father of experimental psychology, was the first to adopt introspection to experimental psychology [1] though the methodological idea had been presented long before, as by 18th century German philosopher-psychologists such as Alexander Gottlieb Baumgarten or Johann Nicolaus Tetens. [7] Also, Wundt's views on introspection must be approached with great care. [8] Wundt was influenced by notable physiologists, such as Gustav Fechner, who used a kind of controlled introspection as a means to study human sensory organs. Building upon the pre-existing use of introspection in physiology, Wundt believed the method of introspection was the ability to observe an experience, not just the logical reflection or speculations which some others interpreted his meaning to be. [9] Wundt imposed exacting control over the use of introspection in his experimental laboratory at the University of Leipzig, [1] making it possible for other scientists to replicate his experiments elsewhere, a development that proved essential to the development of psychology as a modern, peer-reviewed scientific discipline. Such exact purism was typical of Wundt and he instructed all introspection observations be performed under these same instructions: "1) the Observer must, if possible, be in a position to determine beforehand the entrance of the process to be observed. 2) the introspectionist must, as far as possible, grasp the phenomenon in a state of strained attention and follow its course. 3) Every observation must, in order to make certain, be capable of being repeated several times under the same conditions and 4) the conditions under which the phenomenon appears must be found out by the variation of the attendant circumstances and when this was done the various coherent experiments must be varied according to a plan partly by eliminating certain stimuli and partly by grading their strength and quality". [9]

Titchener

Edward Titchener was an early pioneer in experimental psychology and student of Wilhelm Wundt. [1] After earning his doctorate under the tutelage of Wundt at the University of Leipzig, he made his way to Cornell University, where he established his own laboratory and research. [1] When Titchener arrived at Cornell in 1894, psychology was still a fledgling discipline, especially in the United States, and Titchener was a key figure in bringing Wundt's ideas to America. However, Titchener misrepresented some of Wundt's ideas to the American psychological establishment, especially in his account of introspection which, Titchener taught, only served a purpose in the qualitative analysis of consciousness into its various parts, [1] while Wundt saw it as a means to quantitatively measure the whole of conscious experience. [1] Titchener was exclusively interested in the individual components that comprise conscious experience, while Wundt, seeing little purpose in the analysis of individual components, focused on synthesis of these components. Ultimately, Titchener's ideas would form the basis of the short-lived psychological theory of structuralism. [1]

Historical misconceptions

American historiography of introspection, according to some authors, [10] [11] is dominated by three misconceptions. In particular, historians of psychology tend to argue 1) that introspection once was the dominant method of psychological inquiry, 2) that behaviorism, and in particular John B. Watson, is responsible for discrediting introspection as a valid method, and 3) that scientific psychology completely abandoned introspection as a result of those critiques. [10] However, introspection has not been the dominant method. It is believed to be so because Edward Titchener's student Edwin G. Boring, in his influential historical accounts of experimental psychology, privileged Titchener's views while giving little credit to original sources. [10] Introspection has been critiqued by many other psychologists, including Wilhelm Wundt, and Knight Dunlap who in his article "The Case Against Introspection", presents an argument against self-observation that is not primarily rooted in behaviorist epistemology. Introspection is still widely used in psychology, but now implicitly, as self-report surveys, interviews and some fMRI studies are based on introspection. [11] :4 It is not the method but rather its name that has been dropped from the dominant psychological vocabulary.

Recent developments

Partly as a result of Titchener's misrepresentation, the use of introspection diminished after his death and the subsequent decline of structuralism. [1] Later psychological movements, such as functionalism and behaviorism, rejected introspection for its lack of scientific reliability among other factors. [1] Functionalism originally arose in direct opposition to structuralism, opposing its narrow focus on the elements of consciousness [1] and emphasizing the purpose of consciousness and other psychological behavior. Behaviorism's objection to introspection focused much more on its unreliability and subjectivity which conflicted with behaviorism's focus on measurable behavior. [1] [12]

The more recently established cognitive psychology movement has to some extent accepted introspection's usefulness in the study of psychological phenomena, though generally only in experiments pertaining to internal thought conducted under experimental conditions. For example, in the "think aloud protocol", investigators cue participants to speak their thoughts aloud in order to study an active thought process without forcing an individual to comment on the process itself. [13]

Already in the 18th century authors had criticized the use of introspection, both for knowing one's own mind and as a method for psychology. David Hume pointed out that introspecting a mental state tends to alter the very state itself; a German author, Christian Gottfried Schütz, noted that introspection is often described as mere "inner sensation", but actually requires also attention, that introspection does not get at unconscious mental states, and that it cannot be used naively - one needs to know what to look for. Immanuel Kant added that, if they are understood too narrowly, introspective experiments are impossible. Introspection delivers, at best, hints about what goes on in the mind; it does not suffice to justify knowledge claims about the mind. [14] Similarly, the idea continued to be discussed between John Stuart Mill and Auguste Comte. Recent psychological research on cognition and attribution has asked people to report on their mental processes, for instance to say why they made a particular choice or how they arrived at a judgment. In some situations, these reports are clearly confabulated. [15] For example, people justify choices they have not in fact made. [16] Such results undermine the idea that those verbal reports are based on direct introspective access to mental content. Instead, judgements about one's own mind seem to be inferences from overt behavior, similar to judgements made about another person. [15] However, it is hard to assess whether these results only apply to unusual experimental situations, or if they reveal something about everyday introspection. [17] The theory of the adaptive unconscious suggests that a very large proportion of mental processes, even "high-level" processes like goal-setting and decision-making, are inaccessible to introspection. [18] Indeed, it is questionable how confident researchers can be in their own introspections.

One of the central implications of dissociations between consciousness and meta-consciousness is that individuals, presumably including researchers, can misrepresent their experiences to themselves. Jack and Roepstorff assert, '...there is also a sense in which subjects simply cannot be wrong about their own experiential states.' Presumably they arrived at this conclusion by drawing on the seemingly self-evident quality of their own introspections, and assumed that it must equally apply to others. However, when we consider research on the topic, this conclusion seems less self-evident. If, for example, extensive introspection can cause people to make decisions that they later regret, then one very reasonable possibility is that the introspection caused them to 'lose touch with their feelings'. In short, empirical studies suggest that people can fail to appraise adequately (i.e. are wrong about) their own experiential states.

Another question in regards to the veracious accountability of introspection is if researchers lack the confidence in their own introspections and those of their participants, then how can it gain legitimacy? Three strategies are accountable: identifying behaviors that establish credibility, finding common ground that enables mutual understanding, and developing a trust that allows one to know when to give the benefit of the doubt. That is to say, that words are only meaningful if validated by one's actions; When people report strategies, feelings or beliefs, their behaviors must correspond with these statements if they are to be believed. [19]

Even when their introspections are uninformative, people still give confident descriptions of their mental processes, being "unaware of their unawareness". [20] This phenomenon has been termed the introspection illusion and has been used to explain some cognitive biases [21] and belief in some paranormal phenomena. [22] When making judgements about themselves, subjects treat their own introspections as reliable, whereas they judge other people based on their behavior. [23] This can lead to illusions of superiority. For example, people generally see themselves as less conformist than others, and this seems to be because they do not introspect any urge to conform. [24] Another reliable finding is that people generally see themselves as less biased than everyone else, because they are not likely to introspect any biased thought processes. [23]

One experiment tried to give their subjects access to others' introspections. They made audio recordings of subjects who had been told to say whatever came into their heads as they answered a question about their own bias. [23] Although subjects persuaded themselves they were unlikely to be biased, their introspective reports did not sway the assessments of observers. When subjects were explicitly told to avoid relying on introspection, their assessments of their own bias became more realistic. [23]

In religion

Judaism

In Judaism, particularly in the teachings of the practitioners of Mussar a person could achieve progress in perfecting their character traits through a daily "Cheshbon Hanefesh," or Accounting of the Soul. In the practice of Cheshbon Hanefesh, a person introspects about themselves, their day, their faults, progress, and so on, and over time can use the data and process to change behavior and thoughts. Introspection is encouraged during the penitent season in the month of Elul in order to correct the year's sins through repentance, which in Judaism begins with recalling and recognizing them.

Christianity

In Eastern Christianity some concepts addressing human needs, such as sober introspection (nepsis ), require watchfulness of the human heart and the conflicts of the human nous , heart or mind. Noetic understanding can not be achieved by rational or discursive thought (i.e. systemization).[ citation needed ]

Jainism

Jains practise pratikraman (Sanskrit "introspection"), a process of repentance of wrongdoings during their daily life, and remind themselves to refrain from doing so again. Devout Jains often do Pratikraman at least twice a day.[ citation needed ] Many practice Pratikraman on holy days such as Samvatsari, or Forgiveness Day. [25]

Hinduism

Introspection is encouraged in schools such as Advaita Vedanta; in order for one to know their own true nature, they need to reflect and introspect on their true nature—which is what meditation is. Especially, Swami Chinmayananda emphasised the role of introspection in five stages, outlined in his book "Self Unfoldment."

In fiction

Introspection (also referred to as Rufus dialogue, interior monologue, self-talk) is the fiction-writing mode used to convey a character's thoughts. As explained by Renni Browne and Dave King, "One of the great gifts of literature is that it allows for the expression of unexpressed thoughts…" [26]

According to Nancy Kress, a character's thoughts can greatly enhance a story: deepening characterization, increasing tension, and widening the scope of a story. [27] As outlined by Jack M. Bickham, thought plays a critical role in both scene and sequel. [28]

See also

Related Research Articles

Cognitive psychology is the scientific study of mental processes such as attention, language use, memory, perception, problem solving, creativity, and reasoning.

Psychology is the study of mind and behavior. Its subject matter includes the behavior of humans and nonhumans, both conscious and unconscious phenomena, and mental processes such as thoughts, feelings, and motives. Psychology is an academic discipline of immense scope, crossing the boundaries between the natural and social sciences. Biological psychologists seek an understanding of the emergent properties of brains, linking the discipline to neuroscience. As social scientists, psychologists aim to understand the behavior of individuals and groups.

<span class="mw-page-title-main">Wilhelm Wundt</span> German founder of psychology (1832–1920)

Wilhelm Maximilian Wundt was a German physiologist, philosopher, and professor, one of the fathers of modern psychology. Wundt, who distinguished psychology as a science from philosophy and biology, was the first person ever to call himself a psychologist.

<span class="mw-page-title-main">Cognitive bias</span> Systematic pattern of deviation from norm or rationality in judgment

A cognitive bias is a systematic pattern of deviation from norm or rationality in judgment. Individuals create their own "subjective reality" from their perception of the input. An individual's construction of reality, not the objective input, may dictate their behavior in the world. Thus, cognitive biases may sometimes lead to perceptual distortion, inaccurate judgment, illogical interpretation, and irrationality.

Philosophy of psychology is concerned with the history and foundations of psychology. It deals with both epistemological and ontological issues and shares interests with other fields, including philosophy of mind and theoretical psychology. Philosophical and theoretical psychology are intimately tied and are therefore sometimes used interchangeably or used together. However, philosophy of psychology relies more on debates general to philosophy and on philosophical methods, whereas theoretical psychology draws on multiple areas.

Experimental psychology refers to work done by those who apply experimental methods to psychological study and the underlying processes. Experimental psychologists employ human participants and animal subjects to study a great many topics, including sensation, perception, memory, cognition, learning, motivation, emotion; developmental processes, social psychology, and the neural substrates of all of these.

<span class="mw-page-title-main">Margaret Floy Washburn</span> American psychologist and scholar (1871–1939)

Margaret Floy Washburn, was a leading American psychologist in the early 20th century, was best known for her experimental work in animal behavior and motor theory development. She was the first woman to be granted a PhD in psychology (1894); the second woman, after Mary Whiton Calkins, to serve as president of the American Psychological Association (1921); and the first woman elected to the Society of Experimental Psychologists. A Review of General Psychology survey, published in 2002, ranked Washburn as the 88th most cited psychologist of the 20th century, tied with John Garcia, James J. Gibson, David Rumelhart, Louis Leon Thurstone, and Robert S. Woodworth.

<span class="mw-page-title-main">Edward B. Titchener</span> English-American psychologist (1867–1927)

Edward Bradford Titchener was an English psychologist who studied under Wilhelm Wundt for several years. Titchener is best known for creating his version of psychology that described the structure of the mind: structuralism. After becoming a professor at Cornell University, he created the largest doctoral program at that time in the United States. His first graduate student, Margaret Floy Washburn, became the first woman to be granted a PhD in psychology (1894).

The bias blind spot is the cognitive bias of recognizing the impact of biases on the judgment of others, while failing to see the impact of biases on one's own judgment. The term was created by Emily Pronin, a social psychologist from Princeton University's Department of Psychology, with colleagues Daniel Lin and Lee Ross. The bias blind spot is named after the visual blind spot. Most people appear to exhibit the bias blind spot. In a sample of more than 600 residents of the United States, more than 85% believed they were less biased than the average American. Only one participant believed that they were more biased than the average American. People do vary with regard to the extent to which they exhibit the bias blind spot. This phenomenon has been successfully replicated and it appears that in general, stronger personal free will beliefs are associated with bias blind spot. It appears to be a stable individual difference that is measurable.

Theoretical psychology is concerned with theoretical and philosophical aspects of psychology. It is an interdisciplinary field with a wide scope of study.

Psychology is defined as "the scientific study of behavior and mental processes". Philosophical interest in the human mind and behavior dates back to the ancient civilizations of Egypt, Persia, Greece, China, and India.

Mathematical psychology is an approach to psychological research that is based on mathematical modeling of perceptual, thought, cognitive and motor processes, and on the establishment of law-like rules that relate quantifiable stimulus characteristics with quantifiable behavior. The mathematical approach is used with the goal of deriving hypotheses that are more exact and thus yield stricter empirical validations. There are five major research areas in mathematical psychology: learning and memory, perception and psychophysics, choice and decision-making, language and thinking, and measurement and scaling.

The cognitive revolution was an intellectual movement that began in the 1950s as an interdisciplinary study of the mind and its processes, from which emerged a new field known as cognitive science. The preexisting relevant fields were psychology, linguistics, computer science, anthropology, neuroscience, and philosophy. The approaches used were developed within the then-nascent fields of artificial intelligence, computer science, and neuroscience. In the 1960s, the Harvard Center for Cognitive Studies and the Center for Human Information Processing at the University of California, San Diego were influential in developing the academic study of cognitive science. By the early 1970s, the cognitive movement had surpassed behaviorism as a psychological paradigm. Furthermore, by the early 1980s the cognitive approach had become the dominant line of research inquiry across most branches in the field of psychology.

The adaptive unconscious, first coined by social psychologist Daniel Wegner in 2002, is described as a set of mental processes that is able to affect judgement and decision-making, but is out of reach of the conscious mind. It is thought to be adaptive as it helps to keep the organism alive. Architecturally, the adaptive unconscious is said to be unreachable because it is buried in an unknown part of the brain. This type of thinking evolved earlier than the conscious mind, enabling the mind to transform information and think in ways that enhance an organism's survival. It can be described as a quick sizing up of the world which interprets information and decides how to act very quickly and outside the conscious view. The adaptive unconscious is active in everyday activities such as learning new material, detecting patterns, and filtering information. It is also characterized by being unconscious, unintentional, uncontrollable, and efficient without requiring cognitive tools. Lacking the need for cognitive tools does not make the adaptive unconscious any less useful than the conscious mind as the adaptive unconscious allows for processes like memory formation, physical balancing, language, learning, and some emotional and personalities processes that includes judgement, decision making, impression formation, evaluations, and goal pursuing. Despite being useful, the series of processes of the adaptive unconscious will not always result in accurate or correct decisions by the organism. The adaptive unconscious is affected by things like emotional reaction, estimations, and experience and is thus inclined to stereotyping and schema which can lead to inaccuracy in decision making. The adaptive conscious does however help decision making to eliminate cognitive biases such as prejudice because of its lack of cognitive tools.

Oswald Külpe was a German structural psychologist of the late 19th and early 20th century. Külpe, who is lesser known than his German mentor, Wilhelm Wundt, revolutionized experimental psychology at his time. In his obituary, Aloys Fischer wrote that, “undoubtedly Külpe was the second founder of experimental psychology on German soil; for with every change of base he made it a requirement that an experimental laboratory should be provided.”

In psychology, mentalism refers to those branches of study that concentrate on perception and thought processes, for example: mental imagery, consciousness and cognition, as in cognitive psychology. The term mentalism has been used primarily by behaviorists who believe that scientific psychology should focus on the structure of causal relationships to reflexes and operant responses or on the functions of behavior.

Functional psychology or functionalism refers to a psychological school of thought that was a direct outgrowth of Darwinian thinking which focuses attention on the utility and purpose of behavior that has been modified over years of human existence. Edward L. Thorndike, best known for his experiments with trial-and-error learning, came to be known as the leader of the loosely defined movement. This movement arose in the U.S. in the late 19th century in direct contrast to Edward Titchener's structuralism, which focused on the contents of consciousness rather than the motives and ideals of human behavior. Functionalism denies the principle of introspection, which tends to investigate the inner workings of human thinking rather than understanding the biological processes of the human consciousness.

<span class="mw-page-title-main">Introspection illusion</span> Cognitive bias of people thinking they understand their own mental states but others are inaccurate

The introspection illusion is a cognitive bias in which people wrongly think they have direct insight into the origins of their mental states, while treating others' introspections as unreliable. The illusion has been examined in psychological experiments, and suggested as a basis for biases in how people compare themselves to others. These experiments have been interpreted as suggesting that, rather than offering direct access to the processes underlying mental states, introspection is a process of construction and inference, much as people indirectly infer others' mental states from their behaviour.

Structuralism in psychology is a theory of consciousness developed by Edward Bradford Titchener. This theory was challenged in the 20th century.

In social psychology, naïve realism is the human tendency to believe that we see the world around us objectively, and that people who disagree with us must be uninformed, irrational, or biased.

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 Schultz, D. P.; Schultz, S. E. (2012). A history of modern psychology (10th ed.). Belmont, CA: Wadsworth, Cengage Learning. pp. 67–77, 88–100. ISBN   978-1-133-31624-4.
  2. "psychology | Origin and meaning of psychology by Online Etymology Dictionary". www.etymonline.com. Retrieved 2020-09-05.
  3. 1 2 "Encyclopedia of Consciousness". January 2009: 187–199. doi:10.1016/B978-012373873-8.00071-2.{{cite journal}}: Cite journal requires |journal= (help)
  4. Theaetetus , 155.
  5. J. Perner et al. (2007). "Introspection & remembering", Synthese, Springer.
  6. Epistemology. (2005). In Stanford Encyclopedia of Philosophy. Retrieved fromhttp://plato.stanford.edu/entries/epistemology/#SOU.
  7. Cf. Thomas Sturm, Kant und die Wissenschaften vom Menschen (Paderborn: Mentis, 2009), ch. 2.
  8. Danziger, Kurt (1980). "The History of Introspection Reconsidered". Journal of the History of the Behavioral Sciences. 16 (3): 241–262. doi:10.1002/1520-6696(198007)16:3<241::aid-jhbs2300160306>3.0.co;2-o. PMID   11610711.
  9. 1 2 Asthana, Hari Shanker (June 2015). "Wilhelm Wundt". Psychological Studies. 60 (2): 244–248. doi:10.1007/s12646-014-0295-1. S2CID   189774028.
  10. 1 2 3 Costal, A (2006). "'Introspectionism' and the mythical origins of scientific psychology". Consciousness and Cognition. 15 (4): 634–654. doi:10.1016/j.concog.2006.09.008. PMID   17174788. S2CID   17381488.
  11. 1 2 Clegg, Joshua (2013). Self-observation in the social science. New Jersey: Transaction.
  12. Wilson, Robert Andrew; Keil, Frank C., eds. (2001). The MIT Encyclopedia of the Cognitive Sciences. Cambridge, Massachusetts. ISBN   9780262731447.{{cite book}}: CS1 maint: location missing publisher (link)
  13. Hayes, S. C. (1986). "The case of the silent dog—Verbal reports and the analysis of rules: A review of Ericsson and Simon's Protocol Analysis: Verbal Reports as Data". Journal of the Experimental Analysis of Behavior. 45 (3): 351–363. doi:10.1901/jeab.1986.45-351. PMC   1348244 .
  14. Cf. Thomas Sturm, Kant und die Wissenschaften vom Menschen (Paderborn: Mentis, 2009), chapters 2 and 4.
  15. 1 2 Nisbett, Richard E.; Timothy D. Wilson (1977). "Telling more than we can know: Verbal reports on mental processes" (PDF). Psychological Review. 84 (3): 231–259. doi:10.1037/0033-295x.84.3.231. hdl: 2027.42/92167 . S2CID   7742203., reprinted in David Lewis Hamilton, ed. (2005). Social cognition: key readings. Psychology Press. ISBN   978-0-86377-591-8.
  16. Johansson, Petter; Lars Hall; Sverker Sikström; Betty Tärning; Andreas Lind (2006). "How something can be said about telling more than we can know: On choice blindness and introspection". Consciousness and Cognition. 15 (4): 673–692. doi:10.1016/j.concog.2006.09.004. PMID   17049881. S2CID   14863202.
  17. White, Peter A. (1988). "Knowing more about what we can tell: 'Introspective access' and causal report accuracy 10 years later". British Journal of Psychology. 79 (1): 13–45. doi:10.1111/j.2044-8295.1988.tb02271.x.
  18. Wilson, Timothy D.; Elizabeth W. Dunn (2004). "Self-Knowledge: Its Limits, Value, and Potential for Improvement". Annual Review of Psychology . 55: 493–518. doi:10.1146/annurev.psych.55.090902.141954. PMID   14744224.
  19. Schooler, Jonathan W. (2002). "Establishing a legitimate relationship with introspection". Trends in Cognitive Sciences. 6 (9): 371–372. doi:10.1016/S1364-6613(02)01970-8. PMID   12200175. S2CID   45055944.
  20. Wilson, Timothy D.; Yoav Bar-Anan (August 22, 2008). "The Unseen Mind". Science. 321 (5892): 1046–1047. doi:10.1126/science.1163029. PMID   18719269. S2CID   11434647.
  21. Pronin, Emily (January 2007). "Perception and misperception of bias in human judgment". Trends in Cognitive Sciences. 11 (1): 37–43. doi:10.1016/j.tics.2006.11.001. ISSN   1364-6613. PMID   17129749. S2CID   2754235.
  22. Wegner, Daniel M. (2008). "Self is Magic" (PDF). In John Baer; James C. Kaufman; Roy F. Baumeister (eds.). Are we free?: psychology and free will. New York: Oxford University Press. ISBN   978-0-19-518963-6. Archived from the original (PDF) on 2017-01-20. Retrieved 2008-07-02.
  23. 1 2 3 4 Pronin, Emily; Matthew B. Kugler (July 2007). "Valuing thoughts, ignoring behavior: The introspection illusion as a source of the bias blind spot". Journal of Experimental Social Psychology. 43 (4): 565–578. doi:10.1016/j.jesp.2006.05.011. ISSN   0022-1031.
  24. Pronin, Emily; Jonah Berger; Sarah Molouki (2007). "Alone in a Crowd of Sheep: Asymmetric Perceptions of Conformity and Their Roots in an Introspection Illusion". Journal of Personality and Social Psychology. 92 (4): 585–595. doi:10.1037/0022-3514.92.4.585. ISSN   0022-3514. PMID   17469946.
  25. "Jains say it with Michchhami Dukkadam; Sthanakwasi Jains who observe Samvatsari today will break fasts and Derawasi Jains to perform the rituals on Friday & Saturday". DNA (Daily News & Analysis). Athena Information Solutions Pvt. Ltd. 2 September 2011.
  26. Browne, Renni; King, David (2004). Self-Editing for Fiction Writers: How to Edit Yourself into Print. New York, NY: HarperCollins Publishers Inc. ISBN   978-0-06-054569-7.
  27. Kress, Nancy (2003). "Make "Em Think". Writer's Digest (August): 38.
  28. Bickham, Jack M. (1993). Scene & Structure . Cincinnati, OH: Writer's Digest Books. pp.  12–22, 50–58. ISBN   978-0-89879-551-6.

Further reading