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According to the temporal-coding hypothesis (TCH; Savastano & Miller, Behavioural Processes 44:147–162, 1998), acquired associations include temporal information concerning the interval between the associated elements. Moreover, the TCH posits that subjects can integrate two independently acquired associations that share a common element (e.g., S2–S1 and S1–US), which results in the creation of a third association with its own temporal relationship (S2–US). Some evidence has suggested that such temporal integration occurs at the time of testing (Molet, Miguez, Cham, & Miller, Journal of Experimental Psychology: Animal Behavior Processes 38:369–380, 2012). Here we report two fear-conditioning experiments with rats conducted to identify the associative structure of the integrated temporal relationship. The goal was to distinguish between two possible associative structures that could exist following an initial test on which temporal integration occurs: (1) Conditioned responding to S2 on subsequent tests could be the result of recurring successive activation of two independently learned temporal maps that remain independently stored in memory (i.e., S2–S1 plus S1–US). (2) Temporal integration at the moment of initial testing could result in the formation of a direct S2–US (or S2–response) temporal map. Integration was found to occur at test and to produce a new association that was independent of associations with the common element (S1). However, the associative status of S1 appeared to modulate whether or not the new association with S2 was US-specific (S2–US) or directly activated a fear response (S2–response). 相似文献
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Dai Peng Williams Cody Tyler Witucki Allison Michelle Rudge David Wÿss 《Science & Education》2021,30(3):659-692
Science & Education - Issues associated with nature of science (NOS) have long been recognized as an essential component of scientific literacy. While consensus exists regarding the importance... 相似文献
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Paul Craddock Jessica S. Wasserman Cody W. Polack Thierry Kosinski Charlotte Renaux Ralph R. Miller 《Learning & behavior》2018,46(2):171-181
Second-order conditioning (SOC; i.e., conditioned responding to S2 as a result of S1–US pairings followed by S2–S1 pairings) is generally explained by either a direct S2→US association or by an associative chain (i.e., S2→S1→US). Previous research found that differences in responses to S2 after S1 was extinguished often depended on the nature of the S2–S1 pairings (i.e., sequential or simultaneous). In two experiments with human participants, we examined the possibility that such differences result from S1 evoking S2 during extinction of S1 following simultaneous but not sequential S2–S1 pairings. This evocation of S2 by S1 following simultaneous pairings may have paired the evoked representation of S2 with absence of the outcome, thereby facilitating mediated extinction of S2. Using sequential S2-S1 pairings, both Experiments 1 and 2 failed to support this account of how extinction of S1 reduced responding to S2. Experiment 1 found that extinguishing S1 reduced responding to S2, while extinguishing S2 had little effect on responses to S1, although forward evocation of S1 during extinction of S2 paired the evoked representation of S1 with absence of the outcome. In Experiment 2, evocation of S2 during S1 nonreinforced trials was prevented because S2–S1 pairings followed (rather than proceeded) S1-alone exposures. Nevertheless, responding to S2 at test mimicked S1 responding. Responding to S2 was high in the context in which S1 had been reinforced and low in the context in which S1 had been nonreinforced. Collectively, these experiments provide additional support for the associative-chain account of SOC. 相似文献
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The authors present and empirically test a multivariate model of the use of mental health counseling services. Use of such services by 1st‐year college students is directly a result of need for these services and willingness to use them. Beliefs about mental health services and demographic characteristics are not directly related to use, but indirectly affect use by influencing willingness to use. Implications for college counseling programs are discussed. 相似文献
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Science education researchers have long advocated the central role of the nature of science (NOS) for our understanding of scientific literacy. NOS is often interpreted narrowly to refer to a host of epistemological issues associated with the process of science and the limitations of scientific knowledge. Despite its importance, practitioners and researchers alike acknowledge that students have difficulty learning NOS and that this in part reflects how difficult it is to teach. One particularly promising method for teaching NOS involves an explicit and reflective approach using the history of science. The purpose of this study was to determine the influence of a historically based genetics unit on undergraduates’ understanding of NOS. The three-class unit developed for this study introduces students to Mendelian genetics using the story of Gregor Mendel’s work. NOS learning objectives were emphasized through discussion questions and investigations. The unit was administered to undergraduates in an introductory biology course for pre-service elementary teachers. The influence of the unit was determined by students’ responses to the SUSSI instrument, which was administered pre- and post-intervention. In addition, semi-structured interviews were conducted that focused on changes in students’ responses from pre- to post-test. Data collected indicated that students showed improved NOS understanding related to observations, inferences, and the influence of culture on science. 相似文献
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Gonzalo Miguez Bridget McConnell Cody W. Polack Ralph R. Miller 《Learning & behavior》2018,46(3):265-280
This report is part of a larger project examining associative interference as a function of the nature of the interfering and target associations. Lick suppression experiments with rats assessed the effects of context shifts on proactive outcome interference by latent inhibition (LI) and Pavlovian conditioned inhibition (CI) treatments on subsequently trained Pavlovian conditioned excitation treatment. LI and CI were trained in Context A during Phase 1, and then excitation treatment was administered in Context B during Phase 2, followed by tests for conditioned excitation in Contexts A, B, or C. Experiment 1 preliminarily established our LI and CI treatments and resulted in equally retarded acquisition of behavioral control when the target cue was subsequently trained as a conditioned excitor and tested in Context A. However, only CI treatment caused the target to pass a summation test for inhibition. Centrally, Experiment 2 consisted of LI and CI treatments in Context A followed by excitatory training in Context B. Testing found low excitatory control by both LI and CI cues in Context A relative to strong excitatory control in Context B, but CI treatment transferred to Context C more strongly than LI treatment. Experiment 3 determined that LI treatment failed to transfer to Context C even when the number of LI trials was greatly increased. Thus, first-learned LI appears to be relatively context specific, whereas first-learned CI generalizes to a neutral context. These observations add to existing evidence that LI and CI treatments result in different types of learning that diverge sharply in transfer to a novel test context. 相似文献
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Recently, deception research has focused primarily on micro‐analytic methods of lie detection (e.g., eye contact duration, response latency, vocal errors). This study adopted a macro‐assessment approach, where deception detection is based on global evaluations of communication, specifically honesty evaluation based on communicator style. 385 subjects viewed four different videotape segments of individuals participating in a simulated job interview. Two of the individuals were truthful throughout the interview, and two fabricated false information on some questions. Subjects were asked to evaluate or assess the honesty level of these individuals, as well as assess a number of communicator style dimensions. Multiple regression analyses revealed that honesty assessments can be predicted from communication style characterized by high friendliness, attentiveness, and preciseness, and low animated and dramatic styles. Some differences were observed for communicator style predictions of honesty based on liars/truthers, subject gender, target gender, and deceit‐orientation differences. Implications for future research are noted. 相似文献
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Laurie Pratt Richard L. Wiseman Michael J. Cody Pamela F. Wendt 《Communication quarterly》2013,61(1):46-66
The explosive growth of Internet and E‐mail use has provided exceptional opportunities for humans to mediate their communication and thus their relationships in new ways. This study reports on a content analysis of interrogative strategies used in E‐mail messages exchanged over six months between intergenerational sets of senior citizens and youngsters. A great deal of relationship development is facilitated by the use of questions which are a core aspect of uncertainty reduction processes. While Uncertainty Reduction Theory (URT) has been a predominant theoretical position for examining face‐to‐face initial interaction, its utility for examining communication in an asynchronous, computer‐mediated environment was only partially effective. Data analyses focused on politeness of questions, types of questions, and, temporal effects. Results suggest that the interrogative strategies we engage in to achieve interpersonal connectedness are sometimes different in computer‐mediated communication (CMC) and a new standard for transacting relational message exhange may be emerging. 相似文献
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Younbo Jung Wei Peng Meghan Moran Seung-A Annie Jin Margaret McLaughlin Michael Cody 《Educational gerontology》2013,39(3):193-212
Investigated were why some low income, predominantly immigrant seniors (n = 91) choose to enroll in free training and start to use computers and the Internet while others choose not to enroll. The study was conducted in collaboration with a senior center in downtown Los Angeles that provides free Internet access and training to its seniors. The results suggest that psychological variables (e.g., computer anxiety, computer self-efficacy, and aging anxiety) are stronger predictors of older adults' enrollment than their age or actual experience in using computers. Discussed are ways to motivate seniors to participate in computer training by reducing potential barriers. 相似文献