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Running head: SURVIVAL PROCESSING AND THE HUNGER GAMES 1 The Psychological Hunger Games: Using Survival to Study Memory Isis Chong California State University, Long Beach Author Note Isis Chong, Department of Psychology, California State University, Long Beach Correspondence concerning this article should be addressed to Isis Chong, Department of Psychology, California State University, Long Beach, Long Beach, CA 90840 E-mail: [email protected] SURVIVAL PROCESSING AND THE HUNGER GAMES 2 Abstract Building upon levels-of-processing theory (Craik & Lockhart, 1972), recent research has found that memory best benefits from survival-related material (Nairne, Thompson & Pandeirada, 2007). Research manipulating processing in regards to the self and to another has failed to find a significant effect of perspective where third-person perspectives have been confounded with first-person perspectives (Kang, McDermott & Cohen, 2008; Weinstein, Bugg & Roediger, 2008). This study argues that by the using a novel scenario based on The Hunger Games series, the two types of processing may be teased apart to yield a significant difference in recall. This study found that processing survival information in regards to the self produces greater recall than processing information in regards to another. These findings suggest that survival processing works as a function of distinctiveness. Keywords: survival processing, self referencing SURVIVAL PROCESSING AND THE HUNGER GAMES 3 Survival Processing and The Hunger Games Levels of processing theory was originally proposed by Craik and Lockhart (1972) to address how encoding affects memory. Craik and Lockhart (1972) postulated that durability of memory is determined by the type of encoding that occurs for any given piece of information. Items that are processed at deeper (more semantic) levels are elaborated upon to a greater degree and require greater cognitive analysis than items that are not processed as deeply. Conversely, items that are processed at shallow levels are not elaborated upon as much or are processed incompletely and this, in the end, makes it less likely that they will be remembered. To illustrate the difference between deep and shallow levels, one must imagine, for example, having to encode a word based on its phonemic properties (a shallow level) versus imagining and thinking about the purpose of this same item (a deeper level). When individuals process information based on the phonetic instruction, later recall suffers in comparison to the latter task. Since its introduction, Craik and Lockheart’s (1972) theory has garnered a significant amount of support. To date, several types of deep processing have been studied. Research has demonstrated that processing words in regards to the self or imageability have ultimately produced the highest level of recall when paired with other shallow encoding tasks such as processing words based on its physical appearance, i.e., counting letters in a word (Challis, Velichkovsky, & Craik, 1996). In addition to these levels, when participants were asked to complete tasks where they actively had to think about the pleasantness of words, they would benefit from having processed this information at a deep level. Most recently, finds of Nairne and his colleagues (2007) have collected data that suggest that the deepest level of processing to date may be survival processing. When participants are asked to imagine themselves in a survival-related scenario, stimuli are remembered at a much SURVIVAL PROCESSING AND THE HUNGER GAMES 4 higher rate than when placed in the other classic, deep conditions. For example, when given tasks such as rating words based on pleasantness or rating them in regards to the self, survival processing has resulted in the highest level of retention. Nairne and his colleagues (2007) have argued that this advantage is a result of evolution and was developed because enhanced memories allow for us to better adapt to our environment. In the original study by Nairne et al. (2007), participants were asked to imagine themselves in a distant grassland area fending for their survival. They would need to plan for a prolonged stay in this foreign location. Having this scenario in mind, participants were then instructed to rate a list of words based on their relevance to this scenario. In other words, participants were to rate words based on their relevance to their own survival. Other scenarios included rating words based on pleasantness and rating words in regards to a moving scenario where participants had to imagine moving to a new domicile. After rating the list, they were given a filler task to take their minds off the task they just completed. Participants were then given a surprise recall task. The survival scenario was shown to be more advantageous for overall recall than the other conditions. This original study has set the paradigm for many other studies that have used these designs to achieve similar results (Butler, Kang, & Roediger, 2009; Kang, McDermott, & Cohen, 2008; Nairne, Pandeirada, & Thompson, 2008; Nairne, Thompson, & Pandeirada, 2007; Weinstein, Bugg, & Roediger, 2008). Building upon their previous work, Nairne et al. (2008) compared other tried and true deep levels to survival processing. In this study, conditions included rating words based on pleasantness, imagery, and self-reference. Other conditions included rating words for pleasantness where participants had to “unscramble” the first two letters of a word, an intentional learning condition, and finally, the aforementioned grasslands survival condition. Memory with SURVIVAL PROCESSING AND THE HUNGER GAMES survival processing surpassed all conditions, even those requiring a great amount of semantic processing. The second experiment in the study found that recall rates were also not due to the general theme of the scenario. In other words, it isn’t the mere idea of being in an exotic land that creates the advantage. When participants encoded words using a scenario where they imagined being on vacation in an unfamiliar land, recall was poorer than when they had to think about their survival. If survival processing was only due to being placed in a foreign land, then results should have ultimately yielded no significant difference. Results, however, demonstrated that thinking about one’s own survival is a very powerful way of encoding information. Other studies have also tested the effects of survival in other types of locations. Going along with evolutionary theory, one could easily predict that survival-related material would yield much greater memory in a grassland environment than in an urban environment. Collegeaged participants, however, should be more familiar with a city scenario than a grasslands environment. To address this, Weinstein et al. (2008) asked participants to place themselves in not only the original grasslands scenario but also, in moving and city scenarios. In the city scenario, participants were to protect themselves from attackers while living in a city. The moving scenario simply asked participants to rate words based on what would be necessary to successfully purchase and transport items to a new home. Despite more familiarity with the city and moving scenarios, participants had significantly improved recall when placed in the grasslands survival scenario. These results indicate that having to think of one’s own survival will result in deeper levels of encoding and higher recall. Another aspect of previous memory research that is particularly relevant to the study at hand involves the investigation of perspective on the survival processing effect. Weinstein et al. (2008) investigated the aforementioned scenarios (moving, grasslands, and city) and added the 5 SURVIVAL PROCESSING AND THE HUNGER GAMES 6 dimension of perspective. For these three scenarios, participants were asked to rate items based on not only their own survival, but also that of a friend. Upon comparing the overall recall of for these rating conditions, no significant effect of perspective was found. The present study, however, argues that contrary to these findings, a difference in memory should exist between individuals who rate items in the first-person scenario and those in the third-person scenario. The researchers postulated that their nonsignificant finding was a result of a weak manipulation. To explicate, asking participants to think about a friend’s survival was not an engaging enough scenario. The word “friend” may have ultimately proven to be a confound because this word alone may not have been of the necessary strength to prompt this type of third-person processing. Building upon past research, this study sought to test scenarios different to the original grasslands survival scenarios that have been previously used. Ideally, scenarios should be somewhat familiar to the participant so that he or she can fully immerse themselves in the scenario. For this reason, this study sought to use the popular book series, The Hunger Games, as a basis for its survival scenarios. The Hunger Games is a three-book, teen fiction series that, at the time of data collection for the current study, had just been turned into a movie series. This fictional series takes place in a post-apocalyptic world where 24 young people annually fight for their lives while fending off predators and enduring the forces of nature. Only one person is allowed to be the victor, and this person wins by being the last person to survive. Although slightly gruesome, this individual is allowed to have a teammate who watches the game through video cameras and can, to some extent, help and guide the individual in the arena. Of particular interest in the present research is the role of point of view (first-person versus third-person) in determining the survival processing effect. We argue that scenarios that resemble The Hunger Games will be more engaging than past research that has simply asked SURVIVAL PROCESSING AND THE HUNGER GAMES 7 participants to imagine a “friend” in the survival scenario (Weinstein et al., 2008). It is argued that scenarios that employ perspectives such as those of a “friend” or “stranger” (Weinstein et al., 2008) are simply not engaging enough. Upon asking individuals about past scenarios in preliminary testing, it was found that many participants reported difficulty in fully committing to the perspective they had been assigned. If one has to imagine him or herself as the mentor of an individual whose safety is at stake, this may promote imaging the scenario from a third-person perspective, making it a “true” third-person perspective. In other words, this scenario may prove to be stronger manipulation than past scenarios have. This study argues that with a stronger scenario, there should be a significant difference between first- and third-person processing. To accomplish the above goals, two incidental learning conditions were used to test retention rates between individuals who rated items in a first-person and third-person scenario. This study postulated that first-person processing should ultimately yield higher recall than thirdperson processing. Method Participants and Apparatus A total of 96 participants from California State University, Long Beach participated in exchange for partial course credit in an upper-division psychology course. Participants were tested in groups of one to five with the experiment lasting approximately 20 minutes. Stimuli were projected onto a white wall, and participants were asked to record their responses onto blank forms that were handed out on clipboards at the beginning of the experiment. Instructions were read aloud to participants. Materials and Design SURVIVAL PROCESSING AND THE HUNGER GAMES 8 To match up as best as possible with their study, stimuli were selected from the list of words used by Nairne et al. (2007). A total of 33 words were presented to participants, three being practice words. These words can be found in Appendix A. A simple between-subjects design was used whereby all participants received the same word list, order of words, and filler task. There were 48 randomly assigned participants in both the first-person condition and in the third-person condition. There were four major segments for this experiment, the first of which was a rating task that manipulated the type of encoding performed, explained below. Participants were either prompted with the first-person scenario or a third-person scenario for this task. The instructions for the first-person and third-person scenarios that were used are as follows: First-person scenario: In this task we would you to imagine that you are stranded in the grasslands of a foreign land, without any basic survival materials. You are competing in a survival “game” that you must win. Over the next few months, you’ll need to find steady supplies of food and water and protect yourself from predators and other humans who are competing with you for the same things. We are going to show you a list of words, and we would like you to rate how relevant each of these words would be in for you in this survival situation. Some of the words may be relevant and others may not - it’s up to you decide. Third-person scenario: In this task we would like you to imagine that you are the mentor for a teammate stranded in the grasslands of a foreign land, without any basic survival materials. Your teammate is competing in a survival “game” that you both must win. You watch the SURVIVAL PROCESSING AND THE HUNGER GAMES 9 whole competition on hidden cameras and can offer advice to your teammate in the arena. Over the next few months, you need to help your teammate find steady supplies of food and water and protect themselves from predators and other humans who are competing with you for the same things. We are going to show you a list of words, and we would like you to rate how relevant each of these words would be for your teammate in this survival situation. Some of the words may be relevant and others may not - it’s up to you to decide. After completing a rating task, participants completed a second task, a filler task. The filler task that was administered asked participant’s to write down as many of the fifty United States as they could remember. The performance on this filler task was not scored. Following the filler task, participants completed the third task of the experiment, which was a free recall task. All aspects of this experiment were held constant across participants except for the encoding task (first-person versus third-person) that was assigned. Finally, upon the completion of the free recall task, participants completed the fourth and final task where they were instructed to complete a survey that served as a manipulation check. This manipulation check surveyed participants on their familiarity with The Hunger Games series. This last task consisted of two parts. The first part included both closed-ended and openended questions asking whether participants were reminded of a particular movie or book. The second part of the manipulations included closed-ended questions asking whether participants were specifically familiar with The Hunger Games series specifically. The surveys were handed out in this order to prevent possibly biasing the answers of the participants. Procedure SURVIVAL PROCESSING AND THE HUNGER GAMES 10 Upon arriving inside the laboratory, participants were read aloud instructions for their respective scenarios (first-person or third-person). After receiving one of the two scenarios, participants were asked to rate words based on their relevancy to the survival scenario on a 5-point Likert scale with “1” being completely irrelevant and “5” being completely relevant. Promptly following these instructions, stimuli were projected onto a white wall. Three practice words were presented for 5 seconds each, after which participants were asked to express any problems with understanding the task. Upon expressing their grasp of the task at hand, the test stimuli were presented with the same time interval as the practice words. Following this rating task, participants were asked to complete a 2-minute filler task that asked them to write down as many of the fifty states of the United States of America as they could recall. After this task, participants completed a recall task during which they were asked to recall as many of the thirty words from survival word rating task. The results on this last task, the free recall task, was used to measure the memory of the participants. Finally, the participants were asked to complete the two-part manipulation check. Results The significance level for the statistical comparison of overall recall between conditions was set at p < .05. An independent samples t-test was performed comparing individuals who were prompted with the first-person scenario (M = 48.05%, SD = 11.48%) and individuals who were prompted with the third person scenario (M = 42.92%, SD = 12.15%), a significant mean difference was found, t (96) = 1.302, p < .05. The overall effect size was small, d = 0.29. The results from this study did not vary greatly from past results and were in conjunction with past recall rates. The results from the manipulation task that was administered to SURVIVAL PROCESSING AND THE HUNGER GAMES 11 participants cannot be reported as a number of participants were not able to fully complete the task. Discussion The main goal of this study was to document the differences that exist between first- and third-person processing in survival scenarios. Based on past research on self-referencing (Rogers, Kuiper, & Kirker, 1977; Kuiper, & Rogers, 1979; Nairne, et al., 2007; Weinstein et al., 2008), it was expected that the first-person processing condition would yield higher recall than the third-person processing condition. Past research (Rogers, Kuiper, & Kirker, 1977; Kuiper, & Rogers, 1979; Nairne et al., 2007; Weinstein et al., 2008) had not manipulated scenarios for familiarity or for urgency and it was believed that this was why there had not been any clear or distinct results. Past research has simply referred to the other person as a “friend” (Weinstein et al., 2008) and in the experimenters’ opinion, failed to accurately match conditions. It was predicted that this study would produce greater differences among conditions. In agreement with what was hypothesized by the researchers, and in concordance with classic memory research, this study was able to tease apart first- and third-person processing with the use of a novel survival scenario. Our results bring forth the question of the differences between our manipulation and others before it. To explicate further, by making use of a novel scenario, we were able to tease apart firstand third- person processing while other scenarios could not. This suggests that because our scenario was much more vivid and engaging, that memory may ultimately work as a function of distinctiveness. If survival processing is truly adaptive and at the foundation of what we call memory, first-person scenarios should always yield better recall than third-person scenarios. Past research, however, has not found this to be the case. This history, together with our results, point SURVIVAL PROCESSING AND THE HUNGER GAMES 12 us toward the direction of questioning whether survival processing is truly the deepest level of processing. Recent research has come to suggest that the survival processing effect might not be due to evolutionary processes like originally thought (Howe & Otgaar, 2013). In conjunction with our findings and their suggestion that survival processing is not, in fact an adaptation that we have developed over the years, it is proposed that our results may be a matter of distinctiveness at work. Future research should be aimed at creating novel and distinct scenarios without a survival component. These non-survival scenarios should then be compared to equally distinct and rich survival scenarios. Creating the aforementioned conditions may allow us to uncover whether our memory works as a result of an evolutionary adaptation, or instead, distinctiveness. At this present moment, we stand at the helm of uncovering what belies the survival processing effect. Although our results demonstrated that it is indeed possible to draw a line between first-person and third-person processing, they have also brought forth the question of whether survival processing is, in fact, its own phenomenon and not simply a result of the distinctiveness survival scenarios carry. With the suggestions for future research mentioned prior, we may be able to delve further into this matter and truly uncover how it is that our memory works. SURVIVAL PROCESSING AND THE HUNGER GAMES 13 References Butler, A. C., Kang, S. K., & Roediger, H. (2009). Congruity effects between materials and processing tasks in the survival processing paradigm. Journal Of Experimental Psychology: Learning, Memory, and Cognition, 35(6), 1477-1486. doi:10.1037/a0017024 Challis, B. H., Velichovsky, B. M., & Craik, F. M. (1996). Levels-of-processing effects on a variety of memory tasks: New findings and theoretical implications. Consciousness and Cognition: An International Journal, 5(1-2), 142-164. doi:10.1006/ccog.1996.0009 Craik, F. I., & Lockhart, R. S. (1972). Levels of processing: A framework for memory research. Journal Of Verbal Learning & Verbal Behavior, 11(6), 671-684. doi:10.1016/S0022-5371(72)80001-X Howe, M. L. & Otgaar, H. (2013). Proximate mechanisms and the development of adaptive memory. Current Directions in Psychological Science, 22(1), 16-22. doi:10.1177/0963721412469397 Kang, S. K., McDermott, K. B., & Cohen, S. M. (2008). The mnemonic advantage of processing fitness-relevant information. Memory & Cognition, 36(6), 1151-1156. doi:10.3758/MC.36.6.1151 Kuiper, N. A., & Rogers, T. B. (1979). Encoding of personal information: Self–other differences. Journal Of Personality and Social Psychology, 37(4), 499-514. doi:10.1037/0022-3514.37.4.499 Nairne, J. S., Thompson, S. R., & Pandeirada, J. S. (2007). Adaptive memory: Survival processing enhances retention. Journal Of Experimental Psychology: Learning, Memory, and Cognition, 33(2), 263-273. doi:10.1037/0278-7393.33.2.263 SURVIVAL PROCESSING AND THE HUNGER GAMES 14 Nairne, J. S., & Pandeirada, J. S. (2008). Adaptive memory: Remembering with a stone-age brain. Current Directions In Psychological Science, 17(4), 239-243. doi:10.1111/j.14678721.2008.00582.x Nairne, J. S., Pandeirada, J. S., & Thompson, S. R. (2008). Adaptive memory: The comparative value of survival processing. Psychological Science, 19(2), 176-180. doi:10.1111/j.14679280.2008.02064.x Rogers, T. B., Kuiper, N. A., & Kirker, W. S. (1977). Self-reference and the encoding of personal information. Journal Of Personality And Social Psychology, 35(9), 677-688. doi:10.1037/0022-3514.35.9.677 Weinstein, Y., Bugg, J. M., & Roediger, H. (2008). Can the survival recall advantage be explained by basic memory process? Memory & Cognition, 36(5), 913-919. doi:10.3758/MC.36.5.913 SURVIVAL PROCESSING AND THE HUNGER GAMES Appendix A Critical Stimuli apartment aunt bear book broccoli car carbon catfish cathedral chair diesel door eagle emerald finger flute juice mountain orange pan pepper screwdriver shoes silk silver snow soccer sock sword teacher truck whiskey 15