Sunday, October 19, 2014

Language





     Rita Mae Brown, playwright, once stated “Language is the road map of a culture.  It tells you where its people come from and where they are going” (Dold, 2011, para. 12).  This suggests that language is a representation of peoples past, present, and future.  As such, language is essential to each person so that he or she may communicate this representation to others.  For this reason there are specific rules (i.e., grammar) that characterize language; however, these rules vary across languages and define understanding.  Defining language must be done by explaining the nuances and the key features in each of the four levels of language that challenge cognitive processing.
Language and lexicon
     Language, “a stream of words, their pronunciation, and the methods of combining them” is the process that humans use to communicate (Language, 2013, para. 1a).  Thus, allowing them to express thoughts and feelings through speech or symbols; however, the lexicon of a language is the vocabulary or the collection of words of that particular language (e.g., Greek lexicon, Latin lexicon, Hebrew lexicon, etc.).  There are also certain professions (e.g., computer programming, medical providers) and epic films (e.g., Harry Potter or Star Trek) that poses their own lexicon (i.e., directory of words).  Although different cultures may have their own language (e.g., Spanish, English, French, etc.), understanding the specific lexicon of that language makes it possible to understand and communicate in that language (profession, or realm). 
The four levels of language structure and processing
     Regardless of which culture one comes from, language has four distinct levels and processing: phonemes, words, sentences, and texts.  Furthermore, “each level is characterized by rules” (Willingham, 2007, p. 416):   
     Phonemes – In the first phase of language, infants or new learners communicate through the use of phonemes; a series or small set of units known as speech sounds (e.g., the coo’s and babbling of infants) that eventually are used to form words.  However, labial phonemic representations (e.g., the b and p in the bit and pit) and phonetic representations (e.g., the p in spun and the p in pun) are produced differently in different situations (Phonemes, n.d.).  Although categorically people do not hear these slight differences.
     Words – With practice the phonemic coo’s and babbles eventually become coherent words, which are powerful on their own because of the meaning that each word holds.  Without words, as in the animal kingdom, there would be no language.  Word recognition, however, is not based on meaning but on “pronunciation, spelling, and part of speech” (Willingham, 2007, p. 453). 
     Sentences - When a string of individual words are combined, they become sentences.  Although more than just a string of words, sentences help to express thoughts and feelings when speaking or writing.  Although a sentence may not be grammatically correct, understanding can still be attained by searching long-term memory for recognition.  Furthermore, researchers reflect that syntax (i.e., structure) and semantics (i.e., meaning) have been found to play intricate roles in how sentences are parsed.
     Text - More complex yet is how many sentences form a text.  There are three levels to a text: the surface code (wording), a textbase (propositions), and a situation model (integration of knowledge).  Depending on the proposition and surface code used to form these texts, suggests the levels of complexity and meaning, which can be copious. 
Evaluating the key features of language
     As previously mentioned language is an expression of thoughts and feelings, therefore it has specific properties that clarify its critical processes.  In order for a people to express thoughts and feelings, a language must be communicative, thus allowing individuals to relay information in such a way that it can be understood by others.  Another feature of language is that it is arbitrary.  By this, the meaning of a sound or symbol is not absolute; for example, the word ‘box’ in English has no meaning in Spanish, but the word ‘caja’(container) roughly translates to the same meaning.  Willingham (2007) indicates that “[a]rbitrariness is a key feature of symbols” (p. 411).  However, there is specific structure to language.  This structure is vital to understanding, for example whether issuing a statement, ‘it is raining outside’ or asking a question ‘is it raining outside?’ depends on the way the words are structured.
     Language is also generative.  Each of the approximately 600,000 words in the English language can be added to another providing limitless meaning (Willingham, 2007).  Noam Chomsky, as restated by Willingham (2007), indicated that “a distinctive property of language is that we almost never say the same thing twice” (p. 412).  Because of this, language is dynamic and ever changing.  Regardless of the language, as the rules of grammar change, new languages are formed and old languages die out, thus affecting how someone understands and process the dynamics of that language.       
Language processing in cognitive psychology
      Exploring cognitive psychology reveals that learning encompasses the mental processes of perception, attention, thought, language, and memory.  However, of these processes, language is the anchor in which humans acquire the majority of his or her information in order to communicate his or her thoughts and feelings to the world.  Cognitive psychology suggests that the mind works logically; like a computer.  It takes in expressed or implied information and processes it through thought (Psychology Today, n.d.).  Without the proper lexicon of a language that communication is hindered.  Furthermore, the structure and grammar in which people use to express themselves builds a representation that helps others comprehend the dynamics of his or her intent and meaning.  Although as a generative form of communication, subtle changes in words or structure change the way the representation is expressed and perceived. 
     The more developed the language skills, the better that representation will be expressed and understood.  Because memory is a reconstruction of storied representations, language affects the way in which memory is stored, retrieved, and utilized.  Although there are many things that affect how someone thinks, what and how something is said is only one of them (Sapir, 1956 as restated by Willingham, 2007).  Therefore, it is thought that cultural differences can and do affect word meaning within each language.  The Whorfian hypothesis suggests that “the difference may be one of convenience” and that different cultures “favor” specific thought processes over others (Willingham, 2007, p. 434).  An example of this can be seen in the grammatical gender systems of language; whereas, English has gender codes for only a few nouns and pronouns (e.g., girl, boy, he, she), other languages (e.g., Spanish, German, Arabic, Hebrew) assign masculine, feminine, and in some instances a neuter gender roles to their words and sentence structure.
     Although language is designed to express and communicate specific thoughts and feelings, the underlying processes that make language understandable depend on the level of expression and understanding.  While one may not fully understand the phonemes as expressed, both visual and auditory cognitive processes help in the perception of this information.  However, categorical perception allows people to hear phonemes correctly, even when there are slight differences, such as the differences in the pronunciation of p and b (Willingham, 2007).  Regardless of this ambiguity, phonemes are an important key to forming subsequent words.  These words, although arbitrary, are assigned symbolic meaning associated with one’s culture and when combined in a specific structure have the power to express a multitude of thoughts and feelings.  Word recognition, according to Willingham (2007), is thought to be a process of a memory representation from the lexicon based on “pronunciation, spelling, and part of speech” (p. 453).  Combining words into a sentence is accomplished by combining both syntax and semantics.  Although, even sentences not grammatically correct may still be understandable as cognitive processing searches long-term memory for recognition.  A text, however, can convey an enormous amount of representations for more in-depth communication of time and space.  Because of the generative nature of language there can be many representations or expressions used for the same situation, making language extremely dynamic.  As new words are introduced and the lexicon of a language changes so does the way it is perceived.  The Whorfian hypothesis suggests many reasons for this; convenience and specific thought processes are but two.  The cognitive processes that allow such language changes to take place are part of the thought process involved in language development and understanding.  However, as stated earlier, the more developed the language skills, the better that representation will be expressed and understood.  As a basic need for most humans, language is the one skill set that everyone wants to acquire, and then, as history reflects they promptly change it.



 

Phineas Gage: Cognitive Function




     Cognitive processes define the ways in which people take in, store, transform, and manipulate information.  Although it is evident that these internal mental processes take place, researchers continue to seek the exact location that make up cognitive functioning.  In ancient times, cognition was thought to dwell in the heart, but science has shown that cognition is a function of the brain.  Ethically, the only human brains that can be used to study cognitive functioning are those that have sustain damage through injury or illness.  One of the most famous cases of brain damage was Phineas Gage, who in 1848 survived an explosion that sent a tamping iron through his left cheek bone and out the top of his head (Macmillian & Macmillian, 1999).  His story provided extensive research opportunities for doctors to study the role the brain plays in cognitive function and how the different areas of the brain support cognitive function.
The Role of the Brain in Cognitive Functions
     Gage lost a major part of his left frontal lobe when the tamping iron pierced his head.  Even with the extensive damage to Gage’s brain he was still able to maintain motor function and speech, as-well-as recall the incident (Macmillian & Macmillian, 1999).  It was not, however, until his physical recovery that people began to take note of the changes in his personality.  John Harlow, the physician that worked with Gage noted that he (once a hardworking, sensible man) became surly, aggressive, and profane; thus, suggesting that cognitive and behavioral changes take place within the frontal lobe (Damasio, Grabowski, Frank, Galaburda, & Damasio, 1994).  This was further confirmed when surgeons (e.g., Starr and McBurney) began noticing mental changes in patients with frontal lobe lesions.  Later, modified surgical procedures removing only tumorous tissues produced little to no behavioral abnormalities. Gage’s case encouraged further neurological research about the theory of localization of brain function and assisted in defining the different areas of the brain that stimulate the different cognitive functions.
How Brain Areas Support Cognitive Function
     Since Gage’s incident, continued brain research has identified four primary regions that support cognitive functioning: “the occipital, temporal, parietal, and frontal lobes” (Stevens, 2010, para. 1).  Just how these four primary regions support cognitive function varies with each lobe.  The occipital lobe supports visual processing, encoding, and information relay.  The temporal lobe processes recognition (face and place), recall, and storage (memory), as well as language comprehension and sound processing.  Although the parietal lobe assists in visual information, its primary responsibility is that of spatial processing, sensation, and perception integration.  The frontal lobe, as seen in Gage’s case, supports rational decision making (personal and social), the processing of emotion, and personality (Damasio, et. al., 1994).
In the two decades of Gage’s incident, recovery, and the manner in which he lived his life came a turning point for neurological researchers.  Gage was a living, breathing person with sustainable brain damage, his story stimulated additional studies regarding the localization of cognitive brain function.  As additional cases of brain lesions emerged, surgeon’s uncovered primary cognitive regions within the brain, supporting the theory that cognitive functions are localized to the brain.  Frontal, occipital, temporal, and parietal lobes each support different cognitive functions.  While this is true that each lobe may support different cognitive functions, together they produce the functioning human mind.



 

Cognitive Psychology Definition


PSY/360
     Knowing is the key underpinning of cognition.  Norbert Wiener, Edward Tolman, George Miller, and Ulrich Neisser were instrumental in the development of cognitive psychology; although, “people have been thinking about how the mind works for more than 2,400 years” (Willingham, 2007, p. 5).  Dissatisfied with the behaviorist perspective of reasoning these men turned to the mental processes in which people perceive, think, learn, memorize, and use information.  Turning from the observable to the unobservable, however, created its own difficulties (e.g., how does one prove what is perceived and not seen?).  Time is the answer; history has lent itself to the development of cognitive psychology and the observation of the unobservable.
Milestones in the Development of Cognitive Psychology
Philosophical Underpinnings
     Philosophers have pondered on such topics that involve the relationship between the material brain, the conscious mind, and moral motivations for over 2,400 years (Chiong, 2011; Willingham, 2007).  In trying to gain access on how perception, memory, and the origin (nature or nurture) of knowledge are attained, their assumptions, not their questions became the springboard upon which psychology emerged; questioning what can and cannot be explained.  Such philosophical underpinnings are the foundations of the technology that influence society even today.
The Advent of the Scientific Method
     As the age of empirical investigation advance, scientists’ became unsatisfied with only philosophical underpinnings and began to demand scientific proof to such theories of how people think and respond.  A logical process that can be observed and contemplated; with this method, Willingham (2007) explains, “The world can be understood and predicted” (p. 10).  Although this is a very deterministic point of view, it seems reasonable until one tries to apply it to studying the mind.  However, the struggles of trying to apply such scientific methods to the workings of the mind ultimately launched modern psychology.
The Rise and Fall of Behaviorism
     At a time when structured, observable science was in place, William Wundt (1832-1920) pursued, published, taught, wrote, and pushed for his adjenda; psychology – the study of the mind. Wundt’s method of study became known as introspectionism; however, in 1913 Watson challenged introspectionists’ assumptions that they could account for mental processes.  Instead he offered behaviorism; “the study of human psychology through the examination and analysis of objectively observable and quantifiable behavioral events” (behaviorism, n.d., para 1).  Although behaviorism provided the framework for understanding how learning takes place, it did not answer the underlying concerns of how human mental processes (e.g., language, and memory) function.   
The Age of the Computer
     Not until the dawning of the computer age, with its capacity to take information, store it, and retrieve it for later use, did such metaphors for the human mind ignite.  This seemed to be the answer for mental human processes also.  Believing that humans use representations and processes, new assumptions were surfacing around this “information processing model” (Willingham, 2007, p. 28).  These assumptions, suggests Willingham (2007), are that thought and behavior are a process, objects and events (sights and sounds) underlie processing, and information processing (interpretation of events) is completed in organized stages (retrieved from memory and expressed through speech and behavior).  This line of thought was useful to opening the way for further study in the area of cognitive psychology.
Importance of Behavioral Observation in Cognitive Psychology
     Neisser (1978) once quoted “If X is an interesting or socially important aspect of memory, then psychologists have hardly ever studied X” (as restated by Hyman, 2012, para. 6).  With the assumptions that there is no way to observe directly mental processes, one must infer the processes as a direct result of one’s behavior (Willingham, 2007).  Such behavioral observation allows psychologists to test and evaluate theories and assumptions; however, concerning cognitive psychology unobservable abstract constructs can be used; such as those used in both computer science and neuroscience.  Taking what is known and combining with inferences, a hypothesis can be drawn and tested for outcome.  This process brings cognitive psychology back into the scientific realm.
     History is a good indicator of how man’s mental processes continue to grow and expand.  From ancient philosophers it is learned that it is not what, but how someone goes about obtaining information that become the foundations that influence change in society.  However, even logical processes, such as the scientific method may not be able to uncover every truth.  Behaviorism, for example, once again took psychology away from the constructs of the mind to an observable behavioral evaluation, even though much was learned about how behaviors are formed, it did not explain the internal mental processes to produce said behaviors.  It was not until psychologists metaphorically compared computer processes to human mental processes that cognitive psychology achieved its largest advances.  This, however, did incorporate the knowledge of observation and the scientific method, brining cognitive psychology back into the sciences.  The future of cognitive psychology is bright as it advances into the neurosciences and perhaps back to its philosophical roots.