3,194 research outputs found

    The Short-Term Effects of Viewing Relationally Aggressive Media on Hostile Cognitions in College Women

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    Correlational and experimental research indicates that relationally aggressive media exposure is associated with increased aggression (e.g., Coyne, Archer, & Eslea, 2004; Coyne et al., 2008; 2011). The General Aggression Model (GAM) (Anderson & Bushman, 2002) suggests that cognitions about aggression mediate the relationship between aggressive media exposure and subsequent behavior, but little research has examined this possibility in regards to relationally aggressive media. The goals of this study were (1) to examine the short-term effects of viewing relationally aggressive media on hostile response generation in women, and (2) to examine whether pre-existing relational aggression moderates these effects. 158 college women were randomly assigned to view either a relationally aggressive or neutral movie clip. After viewing, participants read 5 vignettes that described interpersonal conflicts, and then were asked to generate a behavioral response to each scenario. There was a significant interaction of type of movie clip viewed and pre-existing relational aggression. Specifically, watching the relationally aggressive movie clip caused participants who were high on relational aggression to generate significantly more hostile responses than those low on relational aggression. These findings provide evidence that relationally aggressive media exposure affects cognitive processes underlying aggressive behavior, but that these short-term effects are moderated by individual differences in aggression. Implications for future research are discussed

    Overgeneral past and future thinking in dysphoria: the role of emotional cues and cueing methodology

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    Overgeneral memory, where individuals exhibit difficulties in retrieving specific episodes from autobiographical memory, has been consistently linked with emotional disorders. However, the majority of this literature has relied upon a single methodology, in which participants respond to emotional cue words with explicit instructions to retrieve/simulate specific events. Through use of sentence completion tasks the current studies explored whether overgenerality represents a habitual pattern of thinking that extends to how individuals naturally consider their personal past and future life story. In both studies, when compared with controls, dysphoric individuals evidenced overgeneral thinking style with respect to their personal past. However, overgeneral future thinking was only evident when the sentence stems included emotional words. These findings highlight the importance of investigating the overgenerality phenomenon using a variety of cueing techniques and results are discussed with reference to the previous literature exploring overgenerality and cognitive models of depression

    The production of prestige: an entrepreneurial viagra.

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    The social context plays a role in entrepreneurial activity. It shapes the perception and evaluation of opportunities and the generation of status. At a deeper level peer group perceptions influence and shape how businesses are run; they stimulate activity but searching for local status through business operations rather than maximising business performance occurs. An ethnographic approach was used to address the question: how are entrepreneurs stimulated in their entrepreneurial endeavour and what effects are manifest in their business? Activities of sixty rural entrepreneurs in the Scottish Highlands were examined. Six cases are presented to demonstrate how the production of prestige operates. The search for status influences entrepreneurial activities. The value of this study is that it enriches our understanding of a neglected area of the entrepreneurial process

    Project Selection and Process Plan Design for Alternative IME 143/144 Final Project

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    Hundreds of students each year enroll in IME 143 or IME 144, freshman-level machining classes, and complete an air motor to demonstrate the skills they have acquired on a variety of manufacturing processes. The air motor, however is useful only as a teaching tool in the classroom; once the students bring them home, the air motor becomes little more than a trophy at best. With the capabilities of the machining lab, a final project can be developed that can have a benefit to people in need while maintaining educational value. This project details a process plan for a manual water pump. The pump can be donated for use in developing countries where access to clean water is still in desperate need. The process for manufacturing the water pump had to be deconstructed into specific machining processes and balanced appropriately between the machines available to the classes. The machining lab has a number of different machines that enable students to use 14 different processes. Unlike a production environment, all processes have to be used and balanced to make use of lab time. This often meant using sub-optimal processes and/or procedures. The critical benchmark for implementing the water pump into the curriculum is the cost. Students in IME 143/144 pay lab fees, which cover the cost of materials for the quarter. The fees are 10forIME143and10 for IME 143 and 50 for IME 144. Based on rough estimates from these lab fees, the actual cost of the air motor is between 10and10 and 20. As designed currently, the water pump has a material cost of about 30.However,thisprojectislargerandmorecomplex.Itisrecommendedthatonepumpbemadeforeverytwostudentsbringingtheperstudentcosttoabout30. However, this project is larger and more complex. It is recommended that one pump be made for every two students bringing the per student cost to about 15, within the cost range of the air motor

    Toxicological analysis of stilbenes against the fall armyworm, \u3ci\u3eSpodoptera frugiperda\u3c/i\u3e

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    The fall armyworm (FAW), Spodoptera frugiperda, is a global pest of multiple economically important row crops and the development of resistance to commercially available insecticidal classes has inhibited FAW control. Thus, there is a need to identify chemical scaffolds that can provide inspiration for the development of novel insecticides for FAW management. This study aimed to assess the sensitivity of central neurons and susceptibility of FAW to chloride channel modulators to establish a platform for repurposing existing insecticides or designing new chemicals capable of controlling FAW. Potency of select chloride channel modulators were initially studied against FAW central neuron firing rate and rank order of potency was determined to be fipronil \u3e lindane \u3e Z-stilbene \u3e DIDS \u3e GABA \u3e E-stilbene. Toxicity bioassays identified fipronil and lindane as the two most toxic modulators studied with topical LD50\u27s of 41 and 75 ng/mg of caterpillar, respectively. Interestingly, Z-stilbene was toxic at 300 ng/mg of caterpillar, but no toxicity was observed with DIDS or E-stilbene. The significant shift in potency between stilbene isomers indicates structure-activity relationships between stilbene chemistry and the binding site in FAW may exist. The data presented in this study defines the potency of select chloride channel modulators to FAW neural activity and survivorship to establish a platform for development of novel chemical agents to control FAW populations. Although stilbenes may hold promise for insecticide development, the low toxicity of the scaffolds tested in this study dampen enthusiasm for their development into FAW specific insecticides

    Individual differences in susceptibility to false memories: The effect of memory specificity

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    Previous research has highlighted the wide individual variability in susceptibility to the false memories produced by the Deese/Roediger-McDermott (DRM) procedure [Deese, J. (1959). On the prediction of occurrence of particular verbal intrusions in immediate recall. Journal of Experimental Psychology, 58, 17–22; Roediger, H. L., III, & McDermott, K. B. (1995). Creating false memories: Remembering words not presented in lists. Journal of Experimental Psychology: Learning, Memory, & Cognition, 21, 803–814]. The current study investigated whether susceptibility to false memories is influenced by individual differences in the specificity of autobiographical memory retrieval. Memory specificity was measured using the Sentence Completion for Events from the Past Test (SCEPT) [Raes, F., Hermans, D., Williams, J. M. G., & Eelen, P. (2007). A sentence completion procedure as an alternative to the Autobiographical Memory Test for assessing overgeneral memory in non-clinical populations. Memory, 15, 495-507]. Memory specificity did not correlate with correct recognition, but a specific retrieval style was positively correlated with levels of false recognition. It is proposed that the contextual details that frequently accompany false memories of nonstudied lures are more accessible in individuals with specific retrieval styles

    Water‐borne and plasma corticosterone are not correlated in spotted salamanders

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    Water‐borne hormone measurement is a noninvasive method suitable for amphibians of all sizes that are otherwise difficult to sample. For this method, containment‐water is assayed for hormones released by the animal. Originally developed in fish, the method has expanded to amphibians, but requires additional species‐specific validations. We wanted to determine physiological relevance of water‐borne corticosterone in spotted salamanders (Ambystoma maculatum) by comparing concentrations to those taken using established corticosterone sampling methods, such as plasma. Using a mixture of field and laboratory studies, we compared water‐borne corticosterone levels to other traditional methods of sampling corticosterone for spotted salamander larvae, metamorphs, and adults. Despite multiple attempts, and detecting differences between age groups, we found no correlations between water‐borne and plasma corticosterone levels in any age group. Water‐borne sampling measures a rate of release; whereas plasma is the concentration circulating in the blood. The unique units of measurement may inherently prevent correlations between the two. These two methods may also require different interpretations of the data and the physiological meaning. We also note caveats with the method, including how to account for differences in body size and life history stages. Collectively, our results illustrate the importance of careful validation of water‐borne hormone levels in each species in order to understand its physiological significance

    Water‐borne and Plasma Corticosterone are not Correlated in Spotted Salamanders

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    Water‐borne hormone measurement is a noninvasive method suitable for amphibians of all sizes that are otherwise difficult to sample. For this method, containment‐water is assayed for hormones released by the animal. Originally developed in fish, the method has expanded to amphibians, but requires additional species‐specific validations. We wanted to determine physiological relevance of water‐borne corticosterone in spotted salamanders (Ambystoma maculatum) by comparing concentrations to those taken using established corticosterone sampling methods, such as plasma. Using a mixture of field and laboratory studies, we compared water‐borne corticosterone levels to other traditional methods of sampling corticosterone for spotted salamander larvae, metamorphs, and adults. Despite multiple attempts, and detecting differences between age groups, we found no correlations between water‐borne and plasma corticosterone levels in any age group. Water‐borne sampling measures a rate of release; whereas plasma is the concentration circulating in the blood. The unique units of measurement may inherently prevent correlations between the two. These two methods may also require different interpretations of the data and the physiological meaning. We also note caveats with the method, including how to account for differences in body size and life history stages. Collectively, our results illustrate the importance of careful validation of water‐borne hormone levels in each species in order to understand its physiological significance
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