Experimental psychology最新文献

The irrelevant sound effect (ISE) describes the disruption of processes involved in maintaining information in working memory (WM) when irrelevant noise is present in the environment. While some posit that the ISE arises due to split obligation of attention to the irrelevant sound and the to-be-remembered information, others have argued that background noise corrupts the order of information within WM. Support for the latter position comes from research showing that the ISE appears to be most robust in tasks that emphasize ordered maintenance by a serial rehearsal strategy, and diminished when rehearsal is discouraged or precluded by task characteristics. This prior work confounds the demand for seriation with rehearsal. Thus, the present study aims to disentangle ordered maintenance from a rehearsal strategy by using a running memory span task that requires ordered output but obviates the utility of rehearsal. Across four experiments, we find a significant ISE that persists under conditions that should discourage the use of rehearsal and among individuals who self-report use of alternative strategies. These findings indicate that rehearsal is not necessary to produce an ISE in a serial recall task and thus fail to corroborate accounts of the ISE that emphasize the involvement of rehearsal.

Previous studies have discussed the symmetry of bidirectional mapping between approximate number system (ANS) and symbolic number system (SNS). However, these studies neglected the essential significance of bidirectional mapping in the development of numerical cognition. That is, with age, the connection strength between the ANS and SNS in ANS-SNS mapping could be higher than that in SNS-ANS mapping. Therefore, this study attempted to explore the symmetry of bidirectional mapping by examining whether the connection between the ANS and SNS is the same. Using two types of dot array materials (extensive and intensive) and sequence priming paradigms, this study found a stable negative priming effect in the ANS-SNS priming task, but no priming effect in the SNS-ANS priming task. In addition, although sensory cues (extensive and intensive) could affect performance in the ANS-SNS mapping task, these cues did not affect performance in the ANS-SNS priming task. In general, this study provides valuable insight into the symmetry of bidirectional mapping.

In response-interference tasks, congruency effects are reduced in trials that follow an incongruent trial. This congruence sequence effect (CSE) has been taken to reflect top-down cognitive control processes that monitor for and intervene in case of conflict. In contrast, episodic-memory accounts explain CSEs with bottom-up retrieval of stimulus-response links. Reconciling these opposing views, an emerging perspective holds that memory stores instances of control - abstract control-states - creating a shortcut for effortful control processes. Support comes from a study that assessed CSEs in a prime-target task. Here, repeating an irrelevant context feature boosted CSEs, possibly by retrieving previously stored control-states. We present a conceptual replication using the Eriksen flanker task because previous research found that CSEs in the flanker task reflect different control mechanisms than CSEs in the prime-target task. We measured CSEs while controlling for stimulus-response memory effects and manipulated contextual information (vertical spatial location) independently from the stimulus information, which introduced the conflict (horizontal spatial location). Results replicate previous findings - CSEs increased for context-repetition compared to context-changes. This study shows that retrieval of control-states is not limited to a specific task or context feature and therefore generalizes the notion that abstract control parameters are stored into trial-specific event files.

This research addressed current controversies concerning the contribution of semantic conflict to the Stroop interference effect and its reduction by a single-letter coloring and cueing procedure. On the first issue, it provides, for the first time, unambiguous evidence for a contribution of semantic conflict to the (overall) Stroop interference effect. The reported data remained inconclusive on the second issue, despite being collected in a considerable sample and analyzed with both classical (frequentist) and Bayesian inferential approaches. Given that in all past Stroop studies, semantic conflict was possibly confounded with either response conflict (e.g., when semantic-associative items [SKY_blue] are used to induce semantic conflict) or with facilitation (when color-congruent items [BLUE_blue] are used as baseline to derive a magnitude for semantic conflict), its genuine contribution to the Stroop interference effect is the most critical result reported in the present study. Indeed, it leaves no doubt - in complete contrast to dominant single-stage response competition models (e.g., Roelofs, 2003) - that selection occurs at the semantic level in the Stroop task. The immediate implications for the composite (as opposed to unitary) nature of the Stroop interference effect and other still unresolved issues in the Stroop literature are outlined further.

Implicit sequence learning is an integral part of human experience, yet the nature of the mechanisms underlying this type of learning remains a matter of debate. In the current study, we provide a test for two accounts of implicit sequence learning, that is, one that highlights sequence learning in the absence of any motor responses (with suppressed eye movements) and one that highlights the relative contribution of the motor processes (i.e., eye movements) to learning. To adjudicate between these accounts and determine whether a motor response is a requisite process in sequence learning, we used anticipation measures to compare performance on the standard oculomotor serial reaction time (SRT) task and on a version of the SRT task where the eye movements were restricted during the learning phase. our results demonstrated an increased proportion of correct anticipations in the standard SRT task compared to the restricted-movement task.

Action video game players (AVGPs) are proven to be significantly different from non-AVGPs (NAVGPs) in attention, which is proposed to be divided into three functional networks: alerting, orienting, and execution control. However, whether the hemispheric lateralization of attentional functions is influenced by the action video game is unclear. In the present study, we examined the lateralization of the three attentional functions in a group of AVGPs (n = 33) compared to NAVGPs (n = 34). The results showed that, relative to NAVGPs, the interactions between orienting and executive control in the left hemispheres of AVGPs were higher than those in the right hemisphere. Moreover, the correlations among the functions are much more sensitive in the left hemisphere. These results suggest significant left lateralization of the attentional functions in AVGPs.

Automobile accidents are a frequent occurrence in the United States and commonly result in legal ramifications. Through a fundamental attribution error (FAE) framework (Ross, 1977), the current research examined how individuals perceive blame and negligence in these cases. In Study 1 (N = 360), we manipulated the driver (you vs. stranger) of a hypothetical accident scenario and the situational circumstances surrounding the accident (favorable vs. unfavorable). Supporting the FAE, individuals' situational blame attributions only varied as a function of situational circumstances when they themselves were hypothetically driving. However, neither the driver nor the situation significantly predicted dispositional blame attributions. Yet, Study 1 provided initial support for the importance of an individual's trait tendency to neglect situational constraints when making dispositional blame attributions. In Study 2 (N = 212), we again manipulated situational circumstances surrounding the hypothetical accident, but within the context of a mock civil trial. Results provided additional support for the importance of this trait tendency and expanded our findings of dispositional blame attributions to perceptions of negligence. Implications include the importance of considering trait individual differences in the likelihood to ignore situational demands when individuals are making legally relevant judgments about automobile accidents.

The current research investigated whether individual differences in working memory capacity (WMC) and affective states have differential effects on lexical-semantic repetition priming outcomes based on whether participants were first- or second-language English speakers. Individual differences in priming effects have often been overlooked in the priming literature. Using logistic mixed-effects models to account for within-subject variation, the current paper investigated a three-way interaction between WMC, negative affect (NA) score, and language primacy on lexical-semantic repetition priming outcomes. The results indicate that a statistically significant three-way interaction exists between language primacy, WMC, and NA scores. No significant interaction effect was found for positive affect scores. We present an argument which posits that an individual's primary language and subsequent familiarity with the primed concepts, in conjunction with individual differences in WMC and mood, plays an important role in determining the most effective strategy used to complete a word-stem completion task. The implications of the findings presented highlight that second-language English speakers are more susceptible to priming effects when prime-inducing stimuli are constructed using English lexicon; however, larger WMC and heighted negative affective states help to mitigate these priming effects.