Journal of Experimental Psychology-Learning Memory and Cognition最新文献

The continuous flow of information in which we are immersed obliges our cognitive system to maintain accessible the relevant elements for the time necessary for their processing. The present study investigated how working memory balances the resource demands of this necessary storage in the face of demanding processing. In four experiments using a complex span task, we examined the residual performance in memory and processing of individuals who performed at their best in the other component. Reciprocal dual-task costs pointed toward a resource sharing between the two functions. However, whereas prioritizing processing almost abolished participants' memory performance, more than 60% of their processing capacities were preserved while maintaining memory performance at span. We argue that this asymmetry might be adaptive in nature. Working memory might have evolved as an action-oriented system in which short-term memory capacity is structurally limited to spare the resources needed for processing the information it holds. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Young children's prosodic fluency correlates with their reading ability, as children who are better early readers also produce more adult-like prosodic cues to syntactic and semantic structure. But less work has explored this question for high school readers, who are more proficient readers, but still exhibit wide variability in reading comprehension skill and prosodic fluency. In the current study, we investigated acoustic indices of prosodic production in high school students (N = 40; ages 13-19) exhibiting a range of reading comprehension skill. Participants read aloud a series of 12 short stories which included simple statements, wh-questions, yes-no questions, quotatives, and ambiguous and unambiguous multiclausal sentences. In addition, to assess the contribution of discourse coherence, sentences were read in either canonical or randomized order. Acoustic cues known to index prosodic phenomena-duration, fundamental frequency, and intensity-were extracted and compared across structures and participants. Results demonstrated that high school readers as a group consistently signal syntactic and semantic structure with prosody, and that reading comprehension skill, above and beyond lower-level skills, correlates with prosodic fluency, as better comprehenders produced stronger prosodic cues. However, discourse coherence did not produce consistent effects. These results strengthen the finding that prosodic fluency and reading comprehension are linked, even for older, proficient readers. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

How do we maintain a rich and stable perceptual experience across the entire visual scene, even when we are focusing on a subset of visual inputs? The current study explored this question by investigating whether the visual system processes summary statistics of multiple features regardless of task relevance, and how they interact with subsequent perception. To test the processing of multifeature summary statistics under different attentional requirements, we presented multiple Gabor patches with heterogeneous orientations/colors and asked participants to attend to a single feature dimension (Experiments 1 and 3) or a single item (Experiment 2) for the memory task. During the memory maintenance period (before memory response), we asked the participants to perform a discrimination task (Experiments 1 and 2) or a boundary localization task (Experiment 3) to test how the memory of the ensemble representation alters the subsequent perceptual experience. We found evidence for obligatory processing of scene summary statistics presented for the memory task, which interacted with the subsequent perceptual sensitivity. Specifically, not only summary statistics relevant but also those of task-irrelevant feature (Experiments 1 and 3) and outside the focus of attention (Experiment 2) were encoded and bidirectionally interacted with subsequent perception. These results suggest obligatory processing of summary statistics of a scene, which may allow rich and stable visual experience by integrating temporally adjacent visual inputs. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

When participants study items one-by-one and are directed to either remember or forget the respective item directly after its presentation, retention of to-be-forgotten items is regularly worse than of to-be-remembered items. We tested whether this directed forgetting effect which is regularly observed for item memory generalizes to source memory. In three experiments, participants studied items in two different source colors (N = 101) or at two different source locations (N = 64; N = 81). Sources were manipulated orthogonally to item type (remember vs. forget). At test, we asked participants to recognize all studied items and also to identify their source. We used a multinomial processing tree model to disentangle item memory, source memory, and guessing. In all three experiments, we replicated the directed forgetting effect in item memory. Source memory for to-be-forgotten items that were recognized despite the intention to forget, however, tended to be even better than source memory for to-be-remembered items that were recognized. These results suggest that the directed forgetting effect does not simply translate from item to source memory. Rather source memory seems to be disproportionally increased in to-be-forgotten items that are remembered. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Letter position coding has been extensively examined in studies of isolated word identification, spurring the development of computational models. However, these models are largely restricted to explaining word identification in foveal vision, despite the fact that early lexical processing during reading occurs in the parafovea. We report four experiments that examined the flexibility of parafoveal letter identity and position coding using a variant of the same-different match task. Participants matched transposed- and substituted-letter strings to reference words, with the former being displayed at various retinal eccentricities for 100 ms versus 300 ms to respectively preclude or allow eye movements. The first pair of experiments demonstrated the relative difficulty of coding parafoveal letter positions as compared to their identities, as well as the standard benefit in identifying words displayed in the right visual field. The second pair of experiments further demonstrated that the location of letter-position uncertainty (i.e., transposed letters) interacts with both eccentricity and visual field. Initial letter transpositions were more easily detected in the left visual field, whereas transpositions of the final letters were more accurately detected in the right visual field. As discussed, these results are challenging for existing models of reading, which can individually account for some of our findings but not the results in their entirety. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Events are temporally bounded experiences involving people, objects, and actions that can be segmented into sequences of smaller, meaningful events (e.g., steps involved in constructing a piece of furniture), but the role of inner language in remembering such events has been unclear. We investigated whether inner language enhances memory for events in a naturalistic, nonverbal task where participants constructed simple models from memory. Across three experiments, we used linguistic suppression in a dual-task paradigm to test whether inner language improved overall memory performance and completion time, additionally exploring the number of events that could be recalled. We found that access to inner language at encoding consistently affected memory performance: when inner language was disrupted at encoding, participants were poorer at recalling the models and remembered fewer events. This effect was present whether or not the number of events to be recalled exceed event memory capacity (estimated as approximately seven to eight events). Critically, linguistic suppression impaired memory performance to a greater extent than a control secondary task that did not affect access to language; that is, impairment was not solely due to dual-task interference. The results support the proposal that inner language enhances event memory via a mechanism of linguistic bootstrapping, which makes event representation more efficient by allowing more information to be encoded in an event model even when language is not being used in the task. These findings therefore extend theories of event memory and add to a growing body of evidence that inner language is a highly valuable cognitive tool. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Representations in the focus of attention (FoA) of working memory (WM) have the highest activation state and processing privilege among representations in WM. There are two distinct processes for representations entering the FoA: involuntary and voluntary. The former is an automatic attentional response to stimuli, while the latter is directed by the central executive. Although extensive WM research has examined these processes individually, their interaction, particularly in competitive scenarios, remains poorly understood. To address this, we conducted experiments by displaying memorized stimuli that contain a color singleton to trigger an involuntary process, followed by a retro-cue in the WM maintenance phase to initiate a voluntary process. By manipulating the retro-cue validity, we probed how the singleton effect was modulated when the two processes had distinct targets. Our findings indicated that when the retro-cue validity was low, the singleton effect remained unaffected by a retro-cue directing to a nonsingleton target. However, when the retro-cue validity was high, the singleton effect was eliminated on reaction time, suggesting that involuntary and voluntary processes compete for a limited capacity of the FoA, with the stronger one prevailing in this competition. These findings illuminate the intricate interplay between involuntary and voluntary attentional processes in WM and offer critical insights into the nature and allocation mechanisms of the FoA. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Research on iconicity or sound symbolism chronicles associations between aspects of word meaning and word form. In valence sound symbolism, specifically, vowels were demonstrated to be associated with valence, so that the vowel /i/ (as in English sea) is judged to fit positively valenced stimuli, whereas the vowel /o/ (as in German Boot) is judged to fit negatively valenced stimuli. However, because previous findings were based on judgments or name invention tasks, they may reflect deliberate strategies. The present research aims to demonstrate the automaticity of valence sound symbolism in online language processing by means of a speeded response task. A total of 163 participants performed a speeded categorization task in which they were requested to classify one of two simultaneously presented stimuli, pseudowords containing the vowels /i/ or /o/ and pictures with positive or negative emotional facial expressions. Thus, stimulus pairings could be either congruent (/i/-words and positive expressions; /o/-words and negative expressions) or incongruent (/i/-words and negative expressions; /o/-words and positive expressions). We observed faster and more accurate responses for congruent over incongruent combinations (the simple effects were significant for positive but not for negative expressions). Thus, sound symbolic congruency (vs. incongruency) of an irrelevant stimulus facilitated responses, which accords with an automatic process contributing to valence sound symbolism and indicates that valence sound symbolism is deeply engrained in the human cognitive system. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Humans have a limited amount of cognitive resources to process various cognitive operations at a given moment. The Source of Activation Confusion model of episodic memory proposes that resources are consumed during each processing, and once depleted, they need time to recover gradually. This has been supported by a series of behavioral findings in the past. However, the neural substrate of the resources is not known. In the present study, over an existing electroencephalogram data set of a free recall task (Kahana et al., 2022), we provided a neural index reflecting the amount of cognitive resources available for forming new memory traces. Unique to our approach, we obtained the neural index not through correlating neural patterns with behavior outcomes or experimental conditions, but by demonstrating its alignment with a latent quantity of cognitive resources inferred from the Source of Activation Confusion model. In addition, we showed that the identified neural index can be used to propose novel hypothesis regarding other long-term memory phenomena. Specifically, we found that according to the neural index, neural encoding patterns for subsequently recalled items correspond to greater available cognitive resources compared with those for subsequently unrecalled items. This provides a mechanistic account for the long-established subsequent memory effects (i.e., differential neural encoding patterns between subsequently recalled vs. subsequently unrecalled items), which has been previously associated with attention, fatigue, and properties of the stimuli. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Controversies persist in the literature regarding the existence of bilingual language control during comprehension, which may be attributed to overlooking the modulating effect of word concreteness. To test this hypothesis, we conducted an experiment using abstract and concrete words, thereby manipulating the activation level of the nontarget language. Sixty Chinese-English bilinguals were instructed to switch between two languages in word reading tasks. We found that abstract words (e.g., [correct], wrong) did not show switching costs, indicating no additional time for switching between languages compared to repeating the same language. In contrast, concrete words (e.g., [sunny], rainy) elicited significant larger switching costs. These findings might suggest greater language control demands on the nontarget language when reading more concrete words. This study offers insights into the modulating effect of word concreteness in language processing on bilingual language control during reading comprehension. (PsycInfo Database Record (c) 2024 APA, all rights reserved).