Fall Semester 2001





Chapter Learning Objectives

Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 9
Chapter 12
Chapter 13
Chapter 14
Chapter 15
Chapter 16
Chapter 17


 
CHAPTER 1 OBJECTIVES
[BACK TO TOP]
1. How can psychology be defined, and what are three ways of expanding on that definition?
2. What was Descartes' version of dualism, and how did it help pave the way for a science of behavior?
3. Why is Descartes' theory, despite its intuitive appeal, unsuitable as a foundation for a complete psychology?
4. How did Hobbes's materialism and the subsequent development of empiricist philosophy help lay the groundwork for a science of psychology?
5. How did the nineteenth-century conception of the nervous system inspire a theory of behavior called reflexology?
6. How did discoveries of localization of function in the brain help establish the idea that the mind can be studied scientifically?
7. How did Darwin's theory of natural selection offer a scientific basis for functional explanations of behavior?
8. Why is Wundt considered the founder of scientific psychology? How are two of his key ideas illustrated by his reaction-time experiments?
9. What was the goal of Titchener's structuralism? Why did his introspective approach to the structure of the mind fail as a scientific method?
10. How was James's functionalism different from Titchener's structuralism? How did James's use of introspection differ from Titchener's?
11. How did a perceptual effect, the phi phenomenon, help promote Gestalt psychology as an alternative to structuralism?
12. How was the Gestalt school of thought applied to descriptions of perception and problem solving?
13. What are four principles of behaviorism set forth by its founder, John B. Watson?
14. How was Skinner's version of behaviorism similar to Watson's, and how was it different?
15. How did ethology and behaviorism differ? Why did they later begin to merge?
16. How did Lashley's early work in physiological psychology challenge Watson's behaviorism? How did it help bring behaviorism and ethology closer together?
17. How did Freud arrive at his concept of an unconscious mind that influences conscious thought and behavior? How was Freud's work different from that occurring in academic circles, and how did it broaden the range of psychological inquiry?
18. In what sense does humanistic psychology present an optimistic view of human nature? What is the goal of humanistic therapy?
19. What are the basic premises of cultural psychology as advocated by Wundt and Vygotsky?
20. How does social psychology differ from cultural psychology? What role did Lewin play in the development of modern social psychology?
21. What were some historical precursors to modern cognitive psychology?
22. How did Piaget's and Chomsky's ideas contribute to the rise of cognitive psychology?
23. How did the computer analogy contribute to the rise of cognitive psychology?
24. How does psychology link the three main divisions of academic studies?
25. How can psychology be understood historically in terms of alternative ways of characterizing the human mind? What is the value of a historical perspective in psychology?



 
CHAPTER 2 OBJECTIVES
[BACK TO TOP]
1.
How did Clever Hans give the appearance of answering questions, and how did Pfungst unveil Hans's methods?
2.
How are facts, theories, and hypotheses related to one another in scientific research?
3.
How does the Clever Hans story illustrate the value of skepticism, the value of controlled experimentation, and the need to rule out observer-expectancy effects?
4.
How does an experiment test causal hypotheses?
5.
What are the independent and dependent variables in (a) Pfungst's experiment with Hans and (b) the experiment on treatments for depression?
6.
How do correlational studies differ from experiments, and why must caution be exerted in inferring causal relationships from them?
7.
How do descriptive studies differ from experiments and from correlational studies?
8.
What are advantages and disadvantages of laboratory studies compared with field studies?
9.
How do self-report methods, naturalistic observations, and tests differ from one another? What are some advantages and disadvantages of each?
10.
How do the mean, median, and standard deviation help describe a set of numbers?
11.
How does a correlation coefficient describe the direction and strength of a correlation?
12.
What might you infer about your hypothesis if your experimental results were statistically significant at the 5 percent level?
13.
How is statistical significance affected by the size of the effect, the number of subjects or observations in each group, and the variability of the scores within each group?
14.
What is the difference between error and bias, and why is bias the more serious problem?
15.
How can a nonrepresentative selection of research participants introduce bias into (a) an experiment and (b) a descriptive study?
16.
What is the difference between reliability and validity of a measurement procedure?
17.
How can the validity of a measurement procedure be assessed, and how can lack of validity contribute to bias?
18.
How can the supposed phenomenon of facilitated communication, by persons with autism, be explained as an observer-expectancy effect?
19.
What are two ways by which an observer's expectations can bias results in a typical experiment? How does blind observation prevent such bias?
20.
How can subjects' expectancies bias the results of an experiment? How does a double-blind procedure control both subjects' and observers' expectancies?
21.
What are the ethical concerns pertaining to privacy, discomfort, deception, and animal welfare? How do researchers strive to satisfy these concerns?

 

 
CHAPTER 3 OBJECTIVES
[BACK TO TOP]
1.
How can genes affect behavioral traits through their role in protein synthesis?
2.
What does it mean to say that genes can influence behavioral traits only through interaction with the environment? How, in general, do genes figure into long-term behavioral changes that derive from experience?
3.
How does meiosis produce egg or sperm cells that are all genetically different from one another, and what consequence does this have for the offspring of sexually reproducing creatures?
4.
What is the difference between a dominant and a recessive gene (or allele)?
5.
What does it mean to say that you and a specific relative are x percent related?
6.
Why do three-fourths of the offspring of two heterozygous parents show the dominant trait and one-fourth show the recessive trait?
7.
How did Scott and Fuller show that the difference between cocker spaniels and basenji hounds in fearfulness is controlled by a single gene locus with the "fear" allele dominant over the "nonfear" allele?
8.
Why would it be a mistake to conclude from Scott and Fuller's work that fear in dogs is due to a single gene or due to genes and not environment?
9.
How has knowledge of the genetic basis of PKU led to an environmental treatment?
10.
How does the paired nature of genes reduce the incidence of genetic disorders?
11.
What is the evidence that a particular deficit in language acquisition may depend on a single dominant gene?
12.
How does the distribution of scores for a polygenic trait differ from that usually obtained for a single-gene trait?
13.
How did Tryon produce "maze bright" and "maze dull" strains of rats; how did he show that the difference was due to genes, not rearing?
14.
Why is the strain difference produced by Tryon not appropriately characterized in terms of general "brightness" or "dullness"?
15.
How is natural selection similar to and different from artificial selection?
16.
What is the source of genetic variation on which natural selection acts?
17.
How did a study of finches illustrate the effect of environmental change on evolution?
18.
What are three mistaken beliefs about evolution, all related to the misbelief that foresight is involved?
19.
Why does evolution apply as much to behavior as to anatomy?
20.
What is the functionalist approach in psychology, and how is it applied at the evolutionary level?
21.
What is the difference between ultimate and proximate explanations of behavior?
22.
What are two means by which useless characteristics might emerge in evolution?
23.
How did Tinbergen identify the sign stimulus for the attack response in the male stickleback?
24.
What evidence supports the idea that humans are biologically predisposed to express particular emotions in particular species-typical ways?
25.
Why are species-typical behaviors in mammals better characterized in terms of biological preparedness than as fixed action patterns, and how is such preparedness evident for two-legged walking and language in humans?
26.
Why is the concept of species-typical behavior relative rather than absolute?
27.
What is the purpose of deprivation experiments, and how is that purpose illustrated in studies of fighting in rats and singing in white-crowned sparrows?
28.
What is the difference between a homology and an analogy, in behavior as well as anatomy?
29.
How did Darwin use comparison by homology to infer the evolutionary steps through which honeybees acquired their hive-making ability?
30.
How do studies of monkeys and apes support the view that the human greeting smile and happy smile have separate evolutionary origins?
31.
How can comparison by homology be used to infer the original functions of behaviors that are now vestigial?
32.
What sorts of questions do sociobiologists ask, and how do they use comparison by analogy to help answer them?
33.
Based on Trivers's theory of parental investment, why does high investment by the female lead to (a) polygyny, (b) large size of males, and (c) high selectivity in the female's choice of mate?
34.
How do sex differences in spotted sandpipers help confirm Trivers's theory?
35.
How does the high rate of monogamy among birds and carnivores help support Trivers's theory?
36.
For what evolutionary reasons might monogamously mated females and males copulate with partners other than their mate?
37.
What appears to be the evolutionary advantage of polygynandry for chimpanzees and bonobos, and in what ways is it more fully developed for the latter than the former?
38.
How do territorial signaling and the home-court advantage help reduce bloodshed in territorial animals?
39.
How do submissive signals and dominance hierarchies help reduce aggression within the colony?
40.
How can male chimpanzees and bonobos achieve dominance through means other than their own fighting ability?
41.
How do the kin selection and reciprocity theories take the altruism out of "altruism"?
42.
Why is the equation of "natural" with "right" considered a fallacy?
43.
Why is it a mistake to believe that characteristics that are influenced by genes cannot be modified except by modifying genes?
44.
What evidence suggests we are predisposed to live in communities, and how do our communities compare with those of other apes?
45.
What evidence suggests that the kin selection theory of altruism applies to humans, as it does to other species?
46.
What evidence suggests that humans evolved as a moderately polygynous species?
47.
How do sociobiologists explain the link between sexual jealousy and violence in men?
48.

What four lessons are proposed as coming to psychology from evolutionary thought and research? Through what examples was each supported in this chapter? tioned response to a drug-related stimulus often

 

 

 
CHAPTER 4 OBJECTIVES
[BACK TO TOP]
1.
What is behaviorism, and what two classes of learning are identified by this perspective?
2.
What is a reflex, and how can it change through habituation?
3.
How did Pavlov discover the conditioned reflex? How did he then systematize the process of conditioning and name the relevant stimuli and responses?
4.
How can classical conditioning be understood as an objectification of the philosophers' law of association by contiguity?
5.
How can a conditioned reflex be extinguished? What evidence indicates that extinction does not return the animal to the untrained state?
6.
How can generalization in classical conditioning be abolished through discrimination training, and how can discrimination training be used to assess an animal's sensory capacities?
7.
How did Watson demonstrate that an emotional reaction can be conditioned?
8.
Why is the conditioned response to a drug-related stimulus often the opposite of the most direct effect of the drug?
9.
How does the conditioning of counteractive drug effects help explain why an addict's usual dose can sometimes be an "overdose"?
10.
How did Thorndike's training procedure differ from Pavlov's, and how did it help lead Thorndike to formulate the law of effect?
11.
How did Skinner's method for studying learning differ from Thorndike's, and why did he prefer the term reinforcer to Thorndike's satisfaction?
12.
How did Hefferline condition people to make a tiny thumb twitch, and how is this relevant for understanding the acquisition of motor skills?
13.
How can biofeedback training be described as operant conditioning?
14.
How can operant conditioning be used to get an animal to do something that it presently doesn't do?
15.
How do the four types of partial-reinforcement schedules differ from one another, and why is it generally adaptive to respond faster to ratio schedules than to interval schedules?
16.
How can partial-reinforcement schedules be used to produce behavior that is very resistant to extinction?
17.
How can a neutral stimulus be turned into a discriminative stimulus to control an operant response?
18.
How can a discriminative stimulus for one response serve as a reinforcer for a new response and thereby link two responses together in a chain?
19.
How does negative reinforcement differ from positive reinforcement?
20.
How does punishment differ from reinforcement, and how do the two kinds of punishment parallel the two kinds of reinforcement?
21.
What are some problems with the use of punishment to improve a child's behavior?
22.
In the most general terms, how does the cognitive perspective differ from the behavioral perspective?
23.
What is some evidence, from people and pigeons, that conditioned and discriminative stimuli are interpreted before they are responded to?
24.
How is it possible to test the S-R and S-S theories of classical conditioning, and how does an experiment involving habituation support the latter?
25.
How does the construct of expectancy help explain the ways in which a conditioned response is different from an unconditioned response?
26.
What are three different conditions in which the pairing of a new stimulus with an unconditioned stimulus does not result in classical conditioning? How do these observations support a cognitive view of conditioning?
27.
How can the view that operant conditioning involves means-end knowledge be experimentally tested? What are the results of one such test?
28.
How are reward contrast effects explained from a cognitive perspective, and what is the evidence that they depend on brain structures not present in fish and reptiles?
29.
How does the overjustification effect illustrate a limitation in the use of reward to promote certain behaviors in people?
30.
How did Tolman show that rats use cognitive maps and that they learn such maps whether they are rewarded or not?
31.
How did Bandura demonstrate two different functions of observational learning in experiments with children?
32.
How does Bandura's theory illustrate the idea that learning cannot be understood in isolation from other mental processes?
33.
How does the ecological perspective differ from the behavioral and cognitive perspectives?

34.

What are two ways in which food-aversion learning differs from typical examples of classical conditioning, and how do these differences make sense in terms of the function of such learning?
35.
How might rats learn which food contains a needed vitamin?
36.
How are Davis's observations with human babies similar to results of food-selection experiments with rats? Why should we be cautious in interpreting Davis's study?
37.
What evidence, with rats and people, points to the importance of social learning in food selection?
38.
In sum, what has natural selection imparted to young omnivores about food selection?
39.
What is some evidence that people and monkeys are biologically predisposed to learn to fear some things more easily than other things?
40.
What aspect of a young fowl's ability to follow its mother depends on learning, and how is that learning guided by inborn biases?
41.
How might the ecological perspective help us predict which place-learning tasks an animal will find easy or difficult to master? What special place-learning abilities have been observed in (a) rats, (b) birds that hide food, and (c) Pacific salmon?
42.
What features of each perspective on learning are noted here as an aid in beginning your review of and reflection on the ideas in this chapter?

 

 
CHAPTER 5 OBJECTIVES
[BACK TO TOP]
1.
What are three basic tasks of the nervous system?
2.
What are the three types of neurons and the function of each?
3.
What are the main parts of a motor neuron, and what is the function of each part?
4.
How do interneurons and sensory neurons differ anatomically from motor neurons?
5.
How do the autonomic and skeletal motor systems differ from each other?
6.
How do the sympathetic and parasympathetic portions of the autonomic system differ from each other?
7.
How does the spinal cord serve as (1) a conduit between spinal nerves and the brain, (2) an organizer of rhythmic locomotor movements, and (3) an organizer of certain reflexes?
8.
How is the brainstem similar to and different from the spinal cord? What role does the brainstem play in the control of behavior?
9.
In what sense is the thalamus a relay station?
10.
What are the main functions of the cerebellum and basal ganglia? Why are these structures classed together even though they are anatomically distinct?
11.
Why is the limbic system so named, and what functions does it perform?
12.
What are three ways by which the hypothalamus controls the body's internal environment?
13.
What are the four lobes of the cortex, and what are the three functional categories of areas that exist within these lobes?
14.
What does it mean to say that cortical sensory and motor areas are organized topographically?
15.
What is some evidence that the primary motor cortex comes relatively late in the chain of command preceding an action and that its function is to refine the more delicate parts of the action?
16.
What is some evidence that the premotor and supplementary motor areas of the cortex help set up programs for skilled actions?
17.
How do association areas in (a) the frontal lobe and (b) the parietal and temporal lobes contribute to movement control?
18.
From an evolutionary perspective, why does it make sense to view the nervous system as a hierarchy of movement-control mechanisms?
19.
How is the hierarchy of motor control illustrated by an imaginative tour through the nervous system of a person who decides to eat some peanuts?
20.
What is the difference between knowing where a brain function occurs and knowing how it occurs?
21.
In what ways are the two hemispheres of the cortex functionally symmetrical and in what ways not?
22.
How is it possible to test each hemisphere separately in split-brain patients, and how do such tests confirm the view that the left hemisphere controls speech and the right hemisphere has superior spatial ability?
23.
What is the difference between Broca's and Wernicke's aphasias in (a) language production, (b) language comprehension, and (c) area of brain destroyed?
24.
How did Carl Wernicke account for the brain's involvement in speech comprehension and production, and how has that account been revised in recent times?
25.
How can PET be used to make a picture reflecting the relative amount of neural activity in various parts of the brain as a person engages in particular cognitive tasks? How is the procedure exemplified in a study involving word perception and production?
26.
How does the resting potential arise from the distribution of ions across the cell membrane?
27.
How do the two phases of the action potential (depolarization and repolarization) result from the successive opening and closing of two kinds of channels through the membrane?
28.
How is an axon's conduction speed related to its diameter and the presence or absence of a myelin sheath?
29.
How do neurotransmitters at excitatory and inhibitory fast synapses affect the rate at which action potentials are produced in the postsynaptic neuron?
30.
How does slow synaptic transmission differ from fast transmission, and, in general, what sorts of functions are served by slow transmission?
31.
What brain changes have been observed in rats and mice caged in enriched compared with deprived environments?
32.
What is some evidence, from studies of other animals and of humans, that practice at specific sensory discrimination tasks can alter neural connections so that more neurons become devoted to the task?
33.
How can the gill-withdrawal reflex be classically conditioned in Aplysia, and what is the neural mechanism that underlies the conditioning?
34.
How are hormones similar to, and different from, neurotransmitters?
35.
What are two lines of evidence supporting the idea that hormones and neurotransmitters have a common evolutionary origin?
36.
What are examples of long-term and short-term effects of hormones?
37.
At a molecular level, how do hormones exert their effects?
38.
How does the brain control the release of hormones from the two lobes of the pituitary and thereby control the release of other hormones as well?
39.
What are three ways in which drugs can alter activity at a synapse?
40.
How can the effects of curare, L-dopa, and psychoactive drugs be interpreted in terms of the hierarchical model of movement control?
41.
How can drug tolerance and withdrawal symptoms be explained in terms of physiological adaptation to a drugged state? For amphetamines, how might this adaptation occur at the molecular level?
42.

What three broad ideas are suggested as a framework for reviewing the chapter?

 

 
CHAPTER 9
[BACK TO TOP]
1.
What are the main components of the so-called modal model of the mind? What is the purpose of such a model?
2.
What is the function of sensory memory, and how do its characteristics suit it for that function?
3.
How did Eriksen and Collins demonstrate that seeing the icon is like seeing the original stimulus?
4.
What is some evidence that sounds might be modified in echoic memory before they are consciously heard?
5.
What are the basic functions of working memory, and what are its main components? How is working memory like the central processing unit of a computer?
6.
How do variations in the span of short-term memory, and means of interfering with that span, support the concept of a phonological loop involving subvocal repetition?
7.
How do we use the visuospatial sketch pad to make judgments about spatial relationships?
8.
What is the evidence that the visuospatial sketch pad and the phonological loop have different characteristics and can operate independently of each other? How did an experiment by Kosslyn demonstrate a similarity between visual imagery and actual looking?
9.
How did Farah demonstrate that brain areas crucial for specific aspects of visual perception are crucial for comparable aspects of visual imagery drawn from memory?
10.
In the modal model, what are the functions of attention, encoding, and retrieval?
11.
In the modal model, what is the function of long-term memory, and how is this memory store different from working memory?
12.
What is some evidence for and against the idea that repetition in working memory promotes encoding into long-term memory?
13.
What is some evidence, from both the classroom and the laboratory, that the more deeply a person thinks about an item of information, the more likely it is that the item will be encoded into long-term memory?
14.
How can chunking be used to increase the amount of information that can be maintained in short-term memory or encoded into long-term memory?
15.
Why can master chess players remember the arrangement of chess pieces after a single, brief look, whereas novices can't?
16.
What is a hierarchical organization, and how can such an organization improve long-term memory?
17.
How does Paivio's dual-coding theory explain the value of visualization in memory encoding? How does the key-word method make use of both visualization and chunking?
18.
What is the decay theory of forgetting, and why is it not well accepted today?
19.
What is the difference between retroactive and proactive interference, and what are the conditions under which these effects are most likely to occur?
20.
What do the principles of association by contiguity and association by similarity say about retrieval from long-term memory? According to James, how does the second principle depend on the first?
21.
What sorts of experimental results was Collins and Loftus's spreading-activation model designed to portray? How does the model continue the tradition of associationism begun by Aristotle?
22.
How does the encoding-specificity principle help explain the value of elaborative encoding and the remarkable performance of experimental subjects on a recall test for 500 nouns?
23.
How can context-dependent memory be demonstrated, and how is it consistent with the encoding-specificity principle?
24.
How can state-dependent memory be demonstrated, and what significance might it have for understanding effects of mood on memory?
25.
How did Bartlett demonstrate that culture-specific schemas affect the way that people remember a story?
26.
How did Loftus demonstrate that information added after an event can affect people's apparent memory for the event? What evidence led McCloskey and Zaragoza to dispute Loftus's interpretation of her results?
27.
How does the problem of memory construction figure into issues of psychotherapy and legal action?
28.
Why should hypnotized subjects' claims of vivid memories not be taken at face value?
29.
How do the two subclasses of explicit memory differ from each other?
30.
Why are implicit memories not well described in terms of the modal model? What are some examples of different kinds of implicit memories?
31.
In what sense are implicit memories more situation-dependent than explicit memories?
32.
What is some evidence that perceptual priming involves implicit memory and that the encoding process for it is different from that for explicit memory?
33.
How can conceptual priming be demonstrated, and what function does it probably serve?
34.
How does the case of H. M. support the idea of a sharp distinction between short-term explicit memory and long-term explicit memory?
35.
What evidence indicates that the hippocampus and structures near it are involved in encoding long-term memories?
36.
What is the evidence that the hippocampus and nearby temporal-lobe structures are not essential for forming or using implicit memories?
37.
How have studies of monkeys led to a distinction between habit and cognitive memory systems paralleling that between implicit and explicit systems in humans?
38.
What is some evidence that episodic and semantic memory may involve different neural systems?
39.
How can the chapter be reviewed from a functional perspective? How might the modal model skew our understanding of memory? How are laboratory and ecological approaches to memory both represented in this chapter?

 

 
CHAPTER 11
[BACK TO TOP]
1.
What is the evidence that infants prefer to look at novel stimuli?
2.
What is the evidence that infants are motivated to control their environment and are emotionally involved in gaining and retaining control?
3.
What is the evidence that infants' examining of objects (a) involves active mental processing, (b) helps them learn about the unique properties of specific objects, and (c) occurs regardless of whether or not adults encourage it?
4.
What are three ways by which infants, beginning at roughly 6 to 12 months, use their observations of adults' behavior to guide their own explorations?
5.
How have empiricist and nativist philosophers differed in their view of the origin of a person's knowledge of core physical principles?
6.
What is the rationale behind the habituation method for studying infants' knowledge of physical principles? With this method, what have researchers found about the knowledge of 2- to 4-month-olds?
7.
How did Piaget test infants' understanding of object permanence? How might the discrepancy between Piaget's results and the results of selective-looking experiments be explained?
8.
What evidence suggests that self-produced locomotion leads to improvement in retrieving hidden objects and to fear of heights? How might the latter effect be explained from an evolutionary perspective?
9.
In Piaget's theory, what is a scheme, how do schemes develop through assimilation and accommodation, and what is the special value of operations? How do all these cooncepts relate to Piaget's idea that mental growth occurs through the child's own, self-motivated actions?
10.
In Piaget's stage theory, (a) what are the four stages and the ages roughly associated with each, (b) how are the child's capacities and limitations at each stage related to the kind of scheme that is most prominent, and (c) how does the child's behavior at each stage promote advancement toward the next stage?
11.
What do developmental psychologists today tend to admire most about Piaget's theory, and what criticisms have been raised concerning (a) Piaget's claims about age differences in reasoning, (b) his theory of the process of change, and (c) his emphasis on the physical rather than social environment?
12.
What is the information-processing perspective on cognitive development, and how does it differ from Piaget's perspective?
13.
How might a continuous increase in the capacity of working memory produce stagelike development in problem-solving ability?
14.
What is the evidence that an increase in mental speed results from biological maturation, and how might that account for increased working-memory capacity?
15.
How does Siegler's explanation of improvement in solving balance-beam problems differ from the kind of explanation that Piaget would offer?
16.
How does Karmiloff-Smith's theory of mental redescription build on the concepts of implicit and explicit knowledge to account for the emergence of creativity in a domain?
17.
How does the theory of explication account for the worsened block-balancing performance of 6-year-olds compared with 4-year-olds?
18.
How does Vygotsky's perspective on cognitive development differ from Piaget's?
19.
In Vygotsky's view, how does acquisition of language lead to a higher form of thought?
20.
According to Vygotsky, what is the function of noncommunicative speech in children? What evidence supports Vygotsky's view?
21.
According to Vygotsky, how are a child's abilities stretched and improved through collaboration with other people? How does Vygotsky's apprentice view of the child contrast with Piaget's scientist view?
22.
In what sense are we all psychologists in everyday life, and what evidence suggests that young children are too?
23.
What evidence suggests that most 4-year-olds, but not most 3-year-olds, understand that people can hold false beliefs?
24.
What evidence suggests that pretend play may be an evolutionary adaptation whose function is to enable children to understand false beliefs and other nonliteral mental states?
25.
How does research on people with autism support the premise that the understanding of minds and the understanding of physical objects are fundamentally distinct abilities?
26.
How does research on autism support the idea that an understanding of false belief and deception may derive, in part, from prior engagement in pretend play?