William E. Hockley's research while affiliated with Wilfrid Laurier University and other places

Publications (84)

Article
In an attempt to better understand recognition memory we look at how three approaches (dual processing, signal detection, and global matching) have addressed the probe, the returned signal and the decision in four recognition paradigms. These are single-item recognition (including the remember/know paradigm), recognition in relational context, asso...
Article
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In recognition, context effects often manifest as higher hit and false-alarm rates to probes tested in an old context compared with probes tested in a new context; sometimes, this concordant effect is accompanied by a discrimination advantage. According to the cue-overload account of context effects (Rutherford, 2004), context acts like any other c...
Article
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Murdock (1974, Human Memory: Theory and Data, Lawrence Erlbaum) distinguished between the encoding and retrieval of item information (the representation of individual events) and associative information (the representation of relations between separate events). Mandler (1980, Psychological Review, 87, 252-271) proposed that recognition decisions co...
Article
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The mirror effect is the finding that in recognition tests, a manipulation that increases the hit rate also decreases the false alarm rate. For example, low frequency words have a higher hit rate and a lower false alarm rate than high frequency words. Because the mirror effect is held to be a regularity of memory, it has had a pronounced influence...
Poster
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Examining the within similarity of pictures compared to sounds that have been used in tests of recognition memory of pictures and sounds.
Article
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Despite the substantial evidence highlighting the role of selective rehearsal in item-method directed forgetting, recent work has suggested that forgetting may occur as a function of an active inhibitory mechanism that is more effortful than elaborative rehearsal processes. In the present work, we test this hypothesis by implementing a double-item...
Preprint
Despite the substantial evidence highlighting the role of selective rehearsal in item-method directed forgetting, recent work has suggested that forgetting may occur as a function of an active inhibitory mechanism that is more effortful than elaborative rehearsal processes. In the present work, we test this hypothesis by implementing a double-item...
Article
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Presenting items multiple times on a study list increases their memorability, a process known as item strengthening. The list-strength effect (LSE) refers to the finding that, compared to unstrengthened (pure) lists, lists for which a subset of the items have been strengthened produce enhanced memory for the strengthened items and depressed memory...
Article
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An ongoing debate in the memory literature concerns whether the list-length effect (better memory for short lists compared with long lists) exists in item recognition (Annis, Lenes, Westfall, Criss, & Malmberg, 2015; Dennis, Lee, & Kinnell, 2008). This debate was initiated when Dennis and Humphreys (2001) showed that, when confounds present in earl...
Article
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Decay and interference are two leading proposals for the cause of forgetting from working and/or short-term memory, and mathematical models of both processes exist. In the present study, we apply a computational model to data from a simple short-term memory task and demonstrate that decay and interference can co-occur in the same experimental parad...
Article
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The effect of item-based directed forgetting (DF) on recognition memory for categorized word lists was examined. For half of the categories, all studied exemplars were followed by a remember cue; for the other half of the categories, all studied exemplars were followed by a forget cue. In Experiment 1, a 2-alternative forced-choice recognition test...
Article
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The picture-superiority effect (PSE) refers to the finding that, all else being equal, pictures are remembered better than words (Paivio & Csapo, 1973). Dual-coding theory (DCT; Paivio, 1991) is often used to explain the PSE. According to DCT, pictures are more likely to be encoded imaginally and verbally than words. In contrast, distinctiveness ac...
Article
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Item-based directed forgetting (DF) was tested using 2-alternative forced-choice recognition to examine the effects of forgetting instructions on memory for perceptual detail and gist of categorised pictures of scenes and objects in three experiments. When the distractor is from the same category as the target (exemplar test condition), discriminat...
Article
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Everyday actions can be characterized by whether they are freely chosen or commanded by external stimuli, and whether they produce pleasant or unpleasant outcomes. To assess how these aspects of actions affect the sense of agency, we asked participants to perform freely selected or instructed key presses which could produce pleasant or unpleasant c...
Article
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Konkle, Brady, Alvarez and Oliva (Psychological Science, 21, 1551–1556, 2010) showed that participants have an exceptional long-term memory (LTM) for photographs of scenes. We examined to what extent participants’ exceptional LTM for scenes is determined by presentation time during encoding. In addition, at retrieval, we varied the nature of the lu...
Article
Previous research showed that increasing the number of action alternatives enhances the sense of agency (SoA). Here, we investigated whether choice space could affect subjective judgments of mental effort experienced during action selection and examined the link between subjective effort and the SoA. Participants performed freely selected (among tw...
Article
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The effects of context on item-based directed forgetting were assessed. Study words were presented against different background pictures and were followed by a cue to remember (R) or forget (F) the target item. The effects of incidental and intentional encoding of context on recognition of the study words were examined in Experiments 1 and 2. Recog...
Article
Judgments can depend on the activity directly preceding them. An example is the revelation effect whereby participants are more likely to claim that a stimulus is familiar after a preceding task, such as solving an anagram, than without a preceding task. We test conflicting predictions of four revelation-effect hypotheses in a meta-analysis of 26 y...
Conference Paper
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Studies have shown participants have an exceptional longterm memory (LTM) for photographs of scenes (Konkle et al., 2010). We examined to what extent this memory is determined by presentation time during encoding. At retrieval, the nature of the lures in a forced-choice recognition task was varied, so that they resembled the target in gist or c...
Article
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We examined whether processing fluency contributes to associative recognition of unitized pre-experimental associations. In Experiments 1A and 1B, we minimized perceptual fluency by presenting each word of pairs on separate screens at both study and test, yet the compound word (CW) effect (i.e., hit and false-alarm rates greater for CW pairs with n...
Article
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People remember words that they read aloud better than words that they read silently, a result known as the production effect. The standing explanation for the production effect is that producing a word renders it distinctive in memory and, thus, memorable at test. By 1 key account, distinctiveness is defined in terms of sensory feedback. We formal...
Article
The study of the effects of environmental context for animal learning and human memory has a long history with mixed results. This research is reviewed to determine the conditions in which environmental context influences memory performance and the nature of these effects. Both interference and context reinstatement paradigms are considered. Global...
Article
Studies of interference in working and short-term memory suggest that irrelevant information may overwrite the contents of memory or intrude into memory. While some previous studies have reported greater interference when irrelevant information is similar to the contents of memory than when it is dissimilar, other studies have reported greater inte...
Article
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The intentional and incidental encoding of individual words and associations between pairs of words was examined using the item-based directed forgetting procedure. Item and associative recognition were both greater for word pairs followed by a remember (R) cue than a forget (F) cue. Associative discrimination for F-cued pairs was above chance in m...
Article
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Recent research has suggested the existence of a modality-independent memory system that is responsible for storing representations of simple, scalar stimulus attributes, such as the frequency of an auditory pure tone or the duration of a stimulus. In the present study, we modify an existing computational model of short-term memory (STM) for stimul...
Article
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False remembering has been examined using a variety of procedures, including the Deese-Roediger-McDermott procedure, the false fame procedure and the two-list recognition procedure. We present six experiments in a different empirical framework examining false recognition of words included in the experimental instructions (instruction-set lures). Th...
Article
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We examined if unitization inherent preexperimentally could reduce the associative deficit in older adults. In Experiment 1, younger and older adults studied compound word (CW; e.g., store keeper) and noncompound word (NCW; e.g., needle birth) pairs. We found a reduction in the age-related associative deficit such that older but not younger adults...
Article
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Abstract This study examined the effect of unitization and contribution of familiarity in the recognition of word pairs. Compound words were presented as word pairs and contrasted with non-compound word pairs in an associative recognition task. In Experiments 1 and 2, yes-no recognition hit and false alarm rates were significantly higher for compou...
Article
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In a previous study, Harris et al. (2002) found disruption of vibrotactile short-term memory after applying single-pulse transcranial magnetic stimulation (TMS) to primary somatosensory cortex (SI) early in the maintenance period, and suggested that this demonstrated a role for SI in vibrotactile memory storage. While such a role is compatible with...
Conference Paper
Full-text available
We examined if unitization inherent preexperimentally could reduce the associative deficit in older adults. In Experiment 1, younger and older adults studied compound word (CW; e.g., store keeper) and noncompound word (NCW; e.g., needle birth) pairs. We found a reduction in the age-related associative deficit such that older but not younger adults...
Article
Traditionally, working and short-term memory (WM/STM) have been believed to rely on storage systems located in prefrontal cortex (PFC). However, recent experimental and theoretical efforts have suggested that, in many cases, sensory or other task-relevant cortex is the actual storage substrate for WM/STM. What factors determine whether a given WM/S...
Article
The encoding of irrelevant stimuli into the memory store has previously been suggested as a mechanism of interference in working memory (e.g., Lange & Oberauer, Memory, 13, 333-339, 2005; Nairne, Memory & Cognition, 18, 251-269, 1990). Recently, Bancroft and Servos (Experimental Brain Research, 208, 529-532, 2011) used a tactile working memory task...
Article
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The effects of the duration of remember and forget cues were examined to test the differential rehearsal account of item-based directed forgetting. In Experiments 1 and 2, cues were shown for 300, 600, or 900 ms, and a directed forgetting effect (better recognition of remember than forget items) was found at each duration. In addition, recognition...
Article
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Previous research has shown that hit and false alarm rates and claims of remembering are greater when test items are shown in the same context that was present at study. In the present article, the effects of environmental context (photographs of scenes shown in the background) were evaluated in a yes-no recognition task when context was manipulate...
Article
The nature of interference in working memory has been a subject of discussion for decades. It has previously been argued that irrelevant stimuli can interfere with working memory by being encoded into memory. Previous findings have suggested that irrelevant sensory activity can interfere with the storage of information in tactile working memory. Mo...
Article
Vibrotactile working memory is increasing in popularity as a model system to test theories of working memory. Notably, however, we know little about vibrotactile working memory capacity. While most other domains of working memory are able to store multiple items (for example, the seven-plus-or-minus-two capacity of verbal memory [17]), previous exa...
Article
Hockley, Hemsworth, and Consoli (1999) found that following the study of normal faces, a recognition test of normal faces versus faces wearing sunglasses produced a mirror effect: The sunglasses manipulation decreased hit rates and increased false-alarm rates. The stimuli used by Hockley et al. (1999) consisted of separate poses of models wearing o...
Article
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In previous studies of interference in vibrotactile working memory, subjects were presented with an interfering distractor stimulus during the delay period between the target and probe stimuli in a delayed match-to-sample task. The accuracy of same/different decisions indicated feature overwriting was the mechanism of interference. However, the dis...
Article
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Previous research has shown that the picture superiority effect (PSE) is seen in tests of associative recognition for random pairs of line drawings compared to pairs of concrete words (Hockley, 2008). In the present study we demonstrated that the PSE for associative recognition is still observed when subjects have correctly identified the individua...
Article
Roediger (2008) argued that none of the general laws of learning and memory have stood the test of time, and when making any generalizations about memory one must add that “it depends”. Undaunted, Surprenant and Neath (2009) have proposed seven principles of memory: cue-dependence, encoding-retrieval, cue-overload, reconstruction, impurity of tasks...
Article
We investigate the effects of word characteristics on episodic recognition memory using analyses that avoid Clark’s (1973) “language-as-a-fixed-effect” fallacy. Our results demonstrate the importance of modeling word variability and show that episodic memory for words is strongly affected by item noise (Criss & Shiffrin, 2004), as measured by the o...
Article
The picture superiority effect has been well documented in tests of item recognition and recall. The present study shows that the picture superiority effect extends to associative recognition. In three experiments, students studied lists consisting of random pairs of concrete words and pairs of line drawings; then they discriminated between intact...
Article
Full-text available
Recognition memory for words was tested in same or different contexts using the remember/know response procedure. Context was manipulated by presenting words in different screen colors and locations and by presenting words against real-world photographs. Overall hit and false-alarm rates were higher for tests presented in an old context compared to...
Article
In three experiments, we investigated prior findings that, following some memory tasks, essentially flat d' or forced-choice retention curves are produced. These curves have been interpreted as indicating that forgetting is not present over the intervals examined; however, we propose in this article that forgetting is actually present whenever hit...
Article
Strength-based mirror effects occur when the hit rate is higher and the false alarm rate is lower following strongly encoded study lists than when following more weakly encoded study lists. In Experiments 1A and 1B, strength-based mirror effects were observed in separate tests of single item and associative recognition for random word pairs. In Exp...
Article
The revelation effect is evidenced by an increase in positive recognition responses when the test probe is immediately preceded by an unrelated problem-solving task. As an alternative to familiarity-based explanations of this effect (Hicks & Marsh, 1998; Westerman & Greene, 1998), Niewiadomski and Hockley (2001) proposed a decision-based account in...
Article
The revelation effect is a puzzling phenomenon in which items on a recognition test are more likely to be judged as "old" when they are immediately preceded by a problem-solving task, such as anagram solution. The present experiments were designed to evaluate Westerman and Greene's (1998) and Hicks and Marsh's (1998) familiarity-based accounts of t...
Article
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The authors use the qualitative differences logic to demonstrate that 2 separate memory influences underlie performance in recognition memory tasks, familiarity and recollection. The experiments focus on the mirror effect, the finding that more memorable stimulus classes produce higher hit rates but lower false-alarm rates than less memorable stimu...
Article
Chizuko Izawa was the first of William Estes' Ph.D. students at Stanford and had Richard Atkinson as a member of her dissertation committee and Richard Shiffrin and Michael Humphreys as classmates. She has been a member of the faculty at Tulane University since 1972. She has produced nearly 70 publications, including three books. She has also serve...
Article
The revelation effect occurs when items on a recognition test are more likely to be judged as being old if they are preceded by a cognitive task that involves the processing of similar types of stimuli. This effect was examined for item (single-word) and associative (word-pair) recognition. We found, in Experiments 1 and 2, a revelation effect for...
Article
Recognition memory for item information (single words) and associative information (word pairs) was tested immediately and after retention intervals of 30 min and 1 day (Experiment 1) and 2 days and 7 days (Experiment 2) using Tulving's (1985) remember/know response procedure. Associative recognition decisions were accompanied by more "remember" re...
Article
Full-text available
A mirror effect was found for a stimulus manipulation introduced at test. When subjects studied a set of normal faces and then were tested with new and old faces that were normal or wearing sunglasses, the hit rate was higher and the false alarm rate was lower for normal faces. Hit rate differences were reflected in remember and sure recognition re...
Article
The degree to which item and associative information can be distinguished at retrieval was assessed using a frequency-judgment task. Words were shown various numbers of times individually and as members of word pairs. At test, subjects judged the frequency of the word pairs and a word's frequency as an individual item, its frequency as a member of...
Article
In Experiment 1, adults estimated the frequency of typical and atypical actions presented in stories about scripted routines. Judgments of frequency were more accurate for atypical than for typical actions. In Experiments 2 and 3, children and adults estimated the frequency of atypical actions that were presented in lists, or embedded in stories th...
Article
The assumption that item and associative information are processed separately and that there is a tradeoff in the amount of each type of information that can be encoded in a given study interval (e.g., Anderson & Bower, 1972; Murdock, 1982, 1992) was examined. When item information was emphasized at study, recognition memory for associative informa...
Article
In five experiments, participants studied pairs of words and yes/no recognition memory for both item and associative information was tested. Two stimulus manipulations, nouns versus nonnouns and high versus low word concreteness, produced the mirror effect for both item and associative recognition. The mirror effect was reflected in both measures o...
Article
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Four experiments are reported that extend previous research and firmly demonstrate that item information is more susceptible to decay or interference than is associative information. The forgetting rate for single words is shown to be greater than the forgetting rate for associations between random pairs of words in a continuous recognition paradig...
Article
Gronlund and Ratcliff (1991, Journal of Mathematical Psychology, 35, 319–344) compared the ability of the decision model proposed by Hockley and Murdock (1987, Psychological Review, 94, 341–358) and Ratcliff's (1978, Psychological Review, 85, 59–108; 1988, Psychological Review, 95, 238–255) diffusion model to account for speed-accuracy trade-off in...
Article
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The list-strength effect arises when increasing the strength of some items in a list reduces memory for the remaining items. The list-strength effect was investigated under conditions of rapid visual presentation. Randomized and blocked formats were used for the mixed lists. Performance was measured with both yes–no and forced-choice recognition pr...
Article
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Individuals judged how often examples of taxonomic categories had occurred in a study list. An availability hypothesis was tested--that frequency estimates are based on the retrieval of instances. Cued (by category names) recall of the examples served as an index of availability. The hypothesis was confirmed--there were strong positive correlations...
Article
This chapter discusses short-term memory for associations. The experiments described in the chapter test the recognition of associative information over retention intervals filled with the presentation and testing of other paired associates. The recognition is used rather than recall because the recognition provides a less complex view of associati...
Article
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The model of the decision system in Murdock's (1982, 1983) two-stage memory-and-decision model for item recognition is developed and tested. The underlying strength distributions are assumed to result from the operation of a distributed-memory system. The decision model assumes that extraneous noise is added to the result of the memory comparison p...
Article
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Eich (1985) recently presented a distributed memory model in which the pattern of results used to support the levels-of-processing view of Craik and Lockhart (1972) was modeled by different degrees of similarity between the encoding context and the to-be-recalled item. We report two experiments in which both phonemic and semantic similarity were va...
Article
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Activation decay functions were examined in two different tasks: lexical decision and word recognition. Activation (amount of facilitation) was measured both for item repetition and for priming between newly learned associates. Results indicate that there are at least three different components of activation: a short-term component that decays with...
Article
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Examined the convolution analysis of RT distributions in 3 experiments employing 4 cognitive tasks with 14 college students. In Exp I ( n = 6), a visual search task was contrasted with a short-term memory search task. In Exp II ( n = 4) and Exp III ( n = 4), a relative judgment of recency task was contrasted with a 2-alternative, forced-choice reco...
Article
The accuracy and response latency of absolute frequency judgments were measured as a function of test lag (the number of intervening items between presentations of a test item) in a continuous memory task. Frequency was varied from one to three presentations in Experiments 1 and 2 and from one to five presentations in Experiment 3. The proportion o...
Article
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The accuracy and response latency of yes/no recognition decisions were measured in 3 experiments by the continuous recognition paradigm. Ss were 12 right-handed undergraduates. Lag––the number of intervening items between target presentations––was varied from 0 to 40. A logarithmic function provided a good description of the relation between lag an...
Article
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Conducted 2 experiments to examine S. Sternberg's (see record 1966-10810-001) theory that humans scan a memorized set of items serially and exhaustively to determine whether it contains a given probe item. Eight undergraduates memorized sets of 2, 4, 6, 8, 12, and 16 items and were presented with a series of 96 probes for each set. Although mean R...

Citations

... In these tasks, the level of function of STM can be gauged by the number of stimuli set as targets at the beginning of the task (Sternberg, 1966). The continuous recognition task (CRT) is a different testing approach within the SDT category and has become a standard approach for assessing EM (Hockley, 1982(Hockley, , 2022. In a CRT, stimuli are presented in a series, and the participant is instructed to attend to each stimulus and indicate if a stimulus is a repetition of one previously shown in the series. ...
... The direct-access to the test item (cf. Clark & Gronlund, 1996), i.e., the lack of a search or item matching mechanism, and the implementation of episodic memory strength as different resting level activations also place the AROM and the AROM+ in the category of signal-detection based approaches to recognition memory, as compared to dual-process or global-matching models (for an in depth review of recognition memory models see Humphreys et al., 2023). It is this direct access to test items' representations which is meant to enable fast accumulation of evidence for both old and new responses. ...
... Given that the role of context load has long been deemed crucial for elucidating the theoretical underpinnings of the context reinstatement effect in recognition (see Ensor et al., 2022;Isarida et al., 2018;Rutherford, 2004), various studies have been conducted to test the competing predictions of the cuing-with-context and the ICE accounts. However, their interpretation is arguably not settled. ...
... Importantly, EC effects greatly depend on remembering US (e.g., Pleyers et al., 2007;Stahl et al., 2023;Waroquier et al., 2020; but see Balas & Sweklej, 2012;see Sweldens et al., 2014 for a review), and specifically on remembering US valence (Stahl et al., 2009). Memory for CS-US pairings may be seen as an instance of memory for associative information 6 : upon presentation of a CS (the probe, or retrieval cue), participants may retrieve its relation to other stimuli; here, the US (i.e., associative information; e.g., Hockley, 2022; for memory-based approaches of the EC effect, see Gast, 2018;Stahl & Aust, 2018). In the present procedure, the CS may cue the retrieval of various pieces of information regarding the two US: their specific identity, their valence, and whether they were told to be used or discarded to form an impression of the CS. ...
... When such highly controlled stimulus sets are used, some long-standing results are still observed but others are no longer found. For example, Neath et al. (2022) reported frequency effects (better memory of low-compared to highfrequency words) and concreteness effects (better memory for concrete than abstract words) in recognition, and both effects are also observed in serial recall (Neath & Quinlan, 2021;Neath & Surprenant, 2020, respectively). In contrast, whereas Neath et al. reported an effect of contextual diversity in recognition (better memory for words that appear in fewer contexts than words that appear in many different contexts), Guitard et al. (2019) found no effect of contextual diversity on serial recall. ...
... There have been a number of proposals for why free recall may best reveal LSE, including that free recall may better capture shifts in context activation (Wilson & Criss, 2017), while cued-recall or recognition may disrupt priority signals for retrieval by requiring retrieval to occur in a certain order (e.g. Ensor et al., 2020). While the specifics remain debated, the overarching point is that the LSE for non-emotional information seems to arise due to a combination of factors present at encoding and retrieval. ...
... The effect is commonly attributed to continued rehearsal of to-be-remembered, but stopped rehearsal of to-be-forgotten information (Basden & Basden, 1996;Bjork, 1972;Woodward & Bjork, 1971). An issue of current debate is whether stopping rehearsal is an active and effortful process (e.g., Fawcett & Taylor, 2008, 2012Fellner et al., 2020) or whether the forgetting arises more passively (e.g., Scholz & Dutke, 2019;Tan et al., 2020). ...
... This confirms our first hypothesis; the number of intersections and the number of choices therefore seem to be equivalent determinants of task difficulty in our study. This outcome could not be predicted from extant literature since depending on methodological details, the list length may or may not play a role for serial order memory (Dennis and Humphreys, 2001) and for paired associate memory (Ensor et al., 2020). Also depending on methodological details, the use of repeated items (e.g., "left" being used six times on route 18(3) but nine times on route 18(2)) may facilitate, degrade or not affect memory (Kahana and Jacobs, 2000;Cowan and Hardman, 2021). ...
... In contrast to list-method directed forgetting, the dominant account for the item-method is that encoding differences drive the forgetting effect (Basden et al., 1993;Montagliani & Hockley, 2019;Tan et al., 2020). According to this view, items are maintained in working memory until the instructional cue is presented. ...
... If labelling pictures improves their memorability, then labelling stimuli from other sensory domains should likewise yield a mnemonic benefit. Consistent with this, Crutcher and Beer (2011) found better free recall for environmental sounds than their spoken labels (but see Ensor, Bancroft, et al., 2019), and Clark et al. (1974) found better recognition for sounds that could be labelled compared to sounds that could not be labelled. ...