The Phonological Similarity Effect In Working Memory Psychology Essay

The Phonological Similarity Effect In Working retrospection Psychology EssayA considerable amount of cognitive, behavioural research has been conducted on the works depot model and the role of the phonological twine and law of similarity effects on the serial reject figure. The purpose of this study was to extend the existing research available in support of the evidence for Baddeley and tab (1974) workings memory model and the role of the phonological loop. A classify of 18 undergraduate university psychology students were for each one subjected to two individual visual phonological tests to suffer info on opine scores for a re entrepot of six similar and confused letters. The data obtained was analysed separately before per variateing a utilize a two tailed paired related sample t-test. The results indicated that there was a statistically significant distinction in scores obtained on visit of dissimilar and similar letters with higher scores being recorded on c rawfish of dissimilar letters.IntroductionThe theory of a well-defined form of memory that is able to store information on a temporary basis whilst being utilised in the service of cognitive process is not new idea, but theories regarding the components that make up the short-term storage memory have evolved considerably during the last century (Gross, 2010 Myers, 2005).The proposal of the multi-store model (MSM) by Atkinsons and Shiffrin (1968) introduced the concept that short-term memory (STM) and long-term memory (LTM) had differing and distinct modes of storing information. This led to a considerable amount of research being conducted on how STM operated (Baddeley Hitch, 1974). Particular help has been given to auditory and visuospatial input along with acoustically similar or dissimilar associations in the information being stored and the affect this may have on information recalled (Conrad, 1964 Wickelgren, 1965 Schulman, 1971 Atkinson Shiffrin, 1968).In Atkinson and Shi ffrin (1968) model, the function of STM is said to provide a means of defyling and enhancing information before it makes it into long-term memory. This is done through description and coding strategies (Atkinson Shiffrin, 1968). In 1974 Baddeley and Hitch introduced their Working Memory (WM) model, a more dynamic system, as opposed to the more passive Atkinson and Shiffrin MSM (Baddeley Hitch, 1974).A definition of working memory can be stated as the collection of cognitive processes that accords information to be held temporarily in an accessible state, whilst in the service of about cognitive task (Baddeley, 2001). One of the important characteristics that differentiate the WM model from the Atkinson-Shiffrin (1968) MS model is the use of two distinct short-term memory buffers, the phonological loop and the visuospatial report pad and the argument that the independence of these buffers allow for a greater flexibility in memory storage (Baddeley Hitch, 1974 Baddeley, 1986)T hese short term memory buffers be two of the four components that make up the WM model (Baddeley, 1986). At the core is the central executive hub, which processes data and cognitive tasks, followed by the two memory subsystems the visuospatial sketch pad, which processes information received in either visual or spatial form and thephonological loopthe area within the WM that deals with language information in auditory or visual form. The final component is the episodic buffer, which was introduced 20 years after the model was first proposed, which links all the components of WM with long-term memory to enhance function (Baddeley Hitch, 1974 Baddeley, 1986 Baddeley, 2000)According Baddeley (1986) the phonological loop is comprised of two individual subcomponents the phonological store, sometimes called the inner ear which holds auditorily presented verbal information and the articulatory control process (ACP), sometimes called the inner voice. Although limits to working memory are easily observed, ever since George Miller (1956) suggested people can recall approximately seven independent, items or chunks of information at a time, it has been more difficult to determine what specific cognitive faculties underlie these observed limits.It has been proposed in several studies (Conrad, 1964 Wickelgren, 1965) that observed limit recall depends upon details of the stimuli. For example, immediate memory retrieval for lists of serial presented verbal information is better when the lists that contain letters or record books that are dissimilar as indicated in the experiments performed by Conrad (1959) and Wickelgren (1965). Consequently it is claimed there is a correlation between phonologically similar and dissimilar information input and memory span, specifically that the recall for dissimilar words or letters would be greater than that for the similar ones presented either auiditorable or viusally (Conrad, 1964 Wickelgren, 1965 Muller, Seymour, Kieras, Meyer, 2003 Eysneck Keane, 2010).The aim of this study was to examine the evidence for Baddel and Shiffrins (1974) WM model with the hypothises that there is a greater ability to recall letters that are dissimilar in nature to those that share common phonological similarities.MethodParticipantsA total of 18 participants were recruited from within a group of undergraduate students, enrolled on the Swansea Metropolitan Universitys Psychology Joint Hons degree go. The participants ages ranged between 18 and 51 years, (M =26.89, R=33, SD=10.26). The participant group was comprised of six males whos ages ranged between 24 and 51 years, (M=35.5, R=27, SD=11.47) and 12 females whos ages ranged between 18 and 38 years, (M=22.58, R=20, SD=6.5).MaterialsThe study materials consisted of two square offs of six sequence separate one set for the similar letters and one for the dissimilar letters. The similar letter set comprised of the letters P, E, V, T, C and G with the dissimilar letter set comprisin g of the letters J, H, P, V, X and F. Each participant was given a blank recall sheet to record their answers with researcher victimization a score sheet to record their individual scores for each set of letters.DesignThis quantitative within-subject study sought to investigate the scores obtained between two variables using the paradigm of serial verbal recall. The independent variable (IV) being the similar and dissimilar letter sets used and the dependent variable (DV), being that of the recall scores of each participant. gulls were recorded between 0 and 6 for each of the tests with only letters recalled in their correct positions being positively scored. All the data obtained was analysed using a two tailed paired related sample t-test within a SPSS package.ProcedureBoth the participants and researchers were all part of the undergraduate psychology course and due to the study being performed as part of their studies, no consent for was required to be signed. Participants were informed of the requirements for the study before each researcher selected two individuals from the participant pool in order to carry out the experiment, with each participant being well-tried individually and in isolation of the other.The experiment purpose was explained to each individual participant prior to testing, with a test run being conducted in order to assure full understanding was reached. Each set of six similar and dissimilar letters were presented to the participant separately, with each letter card being presented visually for 1 second, with a 2 second resist between the presentations of each new letter. After all of the six letters had been shown a 5 second delay was counted down by the researcher to allow for rehearsal, before the Recall Now card was shown. The participant then attempted to recall the letters shown in their correct sequence of display on the recall sheet. This was repeated for the next set of letters, with the same procedures being repeated. T here was no preference of order for the similar or dissimilar letter sets to be shown first.The recall sheets were returned to the researcher who calculated their scores on each of the tests with all scores for each pair of participants collected by the researchers and collated together to give an overall data set of 36 sets of scores.ResultsTable 1 Comparison of recall scores between similar and dissimilar word setsTest TypeTotal ScoreMeanParticipants (n)Std DeviationtdfSig. (2-tailed)Similar1303.66361.662.38350.23Dissimilar1584.391.5Table 1 shows the mean scores obtained for each of the conditions being tested similar recall test (M=3.61, SD=1.66) and dissimilar recall test (M=4.39, SD=1.5). As the table indicates the participants scored higher on the dissimilar recall test by right recalling more letters in the right order of display than when tested on the similar letter set.Analysis of these results show a significant difference in the recall scores, t (35) = 2.38, p Discussio nThe results obtained in this study has shown that there is a significant difference in the number of letters recalled in correct sequence between similar and dissimilar sets of letters, with dissimilar letters being recalled better than phonologically similar acoustic sounding letters. These results support previous acoustic similarity recall effects in STM research (Conrad, 1964 Wickelgren, 1965 Muller, Seymour, Kieras, Meyer, 2003 Jones, Macken, Nicholls, 2004 Page, Cumming, Norris, Hitch, McNeil, 2006) and in turn support the concept of the phonological loop as proposed by Baddeley and Hitch (1974) WM model.The study also supports the findings of Smith, Wilson, and Reisberg (1995) in that the visual presentation of the letters sets were processed indirectly into the phonological store component of the phonological loop through the ACP allowing the participants to exercise the letters observed acoustically using the inner voice.However, there are some concerns on the effects of phonological complexity related to word length including the number of syllables or phonemic length of the letters within words, which suggests that the word length effect in the serial recall task may be better explained by differences in linguistic and lexical properties of words (Jalbert, Neath, Bireta, Surprenant, 2011).It can be argued that studies of this nature have a low ecological value, as they dont appoint the real world. Baddeley, Gathercole, Papagno (1998), claim that the function of the phonological loop has evolved in order to facilitate the learning of unique phonological forms of new words. They propose that this is its primary purpose, to store unfamiliar acoustic patterns while more permanent memory records are being fabricated.Despite this study supporting the hypothesis that there is a phonological effect that influences the ability to successfully recall more letters that are dissimilar in nature as opposed to those that share common phonological similar ities, the use of the phonological loop in retaining sequences of familiar letters/words is, it is argued secondary to its primary function of learning language (Baddeley, Gathercole, Papagno, 1998).ReferencesAtkinson, R. C., Shiffrin, R. M. (1968). Human memory A proposed system and its control processes. In K. Spence, J. Spence (Eds.), The Psychology of Learning and Motivation (Vol. 2, pp. 90-191). New York Academic Press.Baddeley, A. D. 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