Does Evaluative Learning Rely on the Perception of Contingency?

Author(s):  
Florian Kattner ◽  
Wolfgang Ellermeier

An experiment is reported studying the impact of objective contingency and contingency judgments on cross-modal evaluative conditioning (EC). Both contingency judgments and evaluative responses were measured after a contingency learning task in which previously neutral sounds served as either weak or strong predictors of affective pictures. Experimental manipulations of contingency and US density were shown to affect contingency judgments. Stronger contingencies were perceived with high contingency and with low US density. The contingency learning task also produced a reliable EC effect. The magnitude of this effect was influenced by an interaction of statistical contingency and US density. Furthermore, the magnitude of EC was correlated with the subjective contingency judgments. Taken together, the results imply that propositional knowledge about the CS-US relationship, as reflected in contingency judgments, moderates evaluative learning. The data are discussed with respect to different accounts of EC.

2018 ◽  
Vol 72 (1) ◽  
pp. 41-51 ◽  
Author(s):  
Marcos Díaz-Lago ◽  
Helena Matute

The purpose of this research is to investigate the impact of a foreign language on the causality bias (i.e., the illusion that two events are causally related when they are not). We predict that using a foreign language could reduce the illusions of causality. A total of 36 native English speakers participated in Experiment 1, 80 native Spanish speakers in Experiment 2. They performed a standard contingency learning task, which can be used to detect causal illusions. Participants who performed the task in their native tongue replicated the illusion of causality effect, whereas those performing the task in their foreign language were more accurate in detecting that the two events were causally unrelated. Our results suggest that presenting the information in a foreign language could be used as a strategy to debias individuals against causal illusions, thereby facilitating more accurate judgements and decisions in non-contingent situations. They also contribute to the debate on the nature and underlying mechanisms of the foreign language effect, given that the illusion of causality is rooted in basic associative processes.


Author(s):  
Tom Beckers ◽  
Uschi Van den Broeck ◽  
Marij Renne ◽  
Stefaan Vandorpe ◽  
Jan De Houwer ◽  
...  

Abstract. In a contingency learning task, 4-year-old and 8-year-old children had to predict the outcome displayed on the back of a card on the basis of cues presented on the front. The task was embedded in either a causal or a merely predictive scenario. Within this task, either a forward blocking or a backward blocking procedure was implemented. Blocking occurred in the causal but not in the predictive scenario. Moreover, blocking was affected by the scenario to the same extent in both age groups. The pattern of results was similar for forward and backward blocking. These results suggest that even young children are sensitive to the causal structure of a contingency learning task and that the occurrence of blocking in such a task defies an explanation in terms of associative learning theory.


2019 ◽  
Vol 123 (3) ◽  
pp. 781-805
Author(s):  
Manuel Dupont

Three experiments investigated a common but intriguing phenomenon, that is, repeated personal name confusion, a phenomenon at the border between language and memory. The purpose of those experiments was to evaluate the impact of the semantic and phonological similarities on name confusion and to compare repeated naming confusions (i.e., repeatedly confounding two names) with single confusions (i.e., confounding two names only once) in a same experimental paradigm. In all experiments, participants (64 middle-aged participants for each experiment) were asked to memorize the association between 16 names and 16 faces (face-name learning task). In Experiments 1 and 2, the two studied variables were the phonological similarity between the confused names and the semantic similarity between the two bearers of the confused names (using a visually derived semantic code in Experiment 1 and an identity-specific semantic code in Experiment 2). In Experiment 3, the impact of those two semantic similarities between the bearers of the confused names was taken into account, whereas the phonological similarity was not taken into account. First, results showed a main effect of the phonological and semantic similarity on name confusion (more confusions when the names were phonologically related or when the bearers of the names were semantically related). Second, we found that (1) the combination of the phonological and the semantic similarity and (2) the combination of the two semantic similarities led to an increase of name confusions. Third, in the three experiments, we found that the semantic and phonological similarities had a similar impact on repeated and single confusions. Finally, results showed that participants always made more single than repeated confusions, except in the case when the bearers of the confused names shared two semantic features.


2014 ◽  
Vol 26 (3) ◽  
pp. 447-458 ◽  
Author(s):  
Ernest Mas-Herrero ◽  
Josep Marco-Pallarés

In decision-making processes, the relevance of the information yielded by outcomes varies across time and situations. It increases when previous predictions are not accurate and in contexts with high environmental uncertainty. Previous fMRI studies have shown an important role of medial pFC in coding both reward prediction errors and the impact of this information to guide future decisions. However, it is unclear whether these two processes are dissociated in time or occur simultaneously, suggesting that a common mechanism is engaged. In the present work, we studied the modulation of two electrophysiological responses associated to outcome processing—the feedback-related negativity ERP and frontocentral theta oscillatory activity—with the reward prediction error and the learning rate. Twenty-six participants performed two learning tasks differing in the degree of predictability of the outcomes: a reversal learning task and a probabilistic learning task with multiple blocks of novel cue–outcome associations. We implemented a reinforcement learning model to obtain the single-trial reward prediction error and the learning rate for each participant and task. Our results indicated that midfrontal theta activity and feedback-related negativity increased linearly with the unsigned prediction error. In addition, variations of frontal theta oscillatory activity predicted the learning rate across tasks and participants. These results support the existence of a common brain mechanism for the computation of unsigned prediction error and learning rate.


2017 ◽  
Vol 60 (6S) ◽  
pp. 1712-1725 ◽  
Author(s):  
Mara Steinberg Lowe ◽  
Adam Buchwald

Purpose This study investigated whether whole nonword accuracy, phoneme accuracy, and acoustic duration measures were influenced by the amount of feedback speakers without impairment received during a novel speech motor learning task. Method Thirty-two native English speakers completed a nonword production task across 3 time points: practice, short-term retention, and long-term retention. During practice, participants received knowledge of results feedback according to a randomly assigned schedule (100%, 50%, 20%, or 0%). Changes in nonword accuracy, phoneme accuracy, nonword duration, and initial-cluster duration were compared among feedback groups, sessions, and stimulus properties. Results All participants improved phoneme and whole nonword accuracy at short-term and long-term retention time points. Participants also refined productions of nonwords, as indicated by a decrease in nonword duration across sessions. The 50% group exhibited the largest reduction in duration between practice and long-term retention for nonwords with native and nonnative clusters. Conclusions All speakers, regardless of feedback schedule, learned new speech motor behaviors quickly with a high degree of accuracy and refined their speech motor skills for perceptually accurate productions. Acoustic measurements may capture more subtle, subperceptual changes that may occur during speech motor learning. Supplemental Materials https://doi.org/10.23641/asha.5116324


2020 ◽  
Author(s):  
Shannon Jade Wake ◽  
Helen Dodd ◽  
Jayne Morriss

Individuals who score high in Intolerance of Uncertainty (IU) display reduced threat extinction learning and retention. Recently, it was shown that replacing threat associations with novel associations (i.e. presenting a novel non-aversive tone 100% of the time vs. presenting nothing) can promote threat extinction retention in individuals with high IU. This effect could be driven by the tone’s novelty or reliability. Here we seek to address this question by adjusting the reliability via the reinforcement schedule of the novel tone. We propose to measure skin conductance response during an associative learning task in which participants (n = 90) will be assigned to one of three conditions; standard extinction, 100% reinforcement NFE or 50% reinforcement NFE. This work will further our understanding of the role novelty, reliability and IU in threat extinction. Ultimately, this research will inform future models of IU and clinical treatments of anxiety and stress disorders.


2019 ◽  
Vol 9 (5) ◽  
pp. 106
Author(s):  
Shannon Bosshard ◽  
Monika Koller ◽  
Peter Walla

In the present study, using both implicit and explicit measures, we addressed the issue of whether strongly developed relationships towards brands could be modified through the use of evaluative conditioning. Using an online survey, individual participant brand lists were created, and formed the basis of this experiment. Participants were then exposed to conditioning during a longitudinal study. Throughout the experiment, a combination of explicit and implicit measures was used to assess changes in attitude. Specifically, participants were asked to rate the brand names on a Likert-type scale. Simultaneously, changes in the brains electrical activity in response to the brands were recorded via electroencephalography (EEG). Upon completion of this task, participants underwent two Implicit Association Tests (IAT; one for liked brands and one for disliked brands). There were two main findings of this study. Firstly, no significant changes in attitude were observed via the use of explicit measures, and those that were found relating to the IAT were regarded as questionable. Secondly, EEG presented consistent results which showed that conditioning elicited changes in cortical activity towards both liked and disliked brands, which suggest it may be a useful tool in measuring the impact of evaluative conditioning that is not reflected in verbal responses.


2020 ◽  
Author(s):  
N Dolfen ◽  
B R King ◽  
L Schwabe ◽  
M A Gann ◽  
M P Veldman ◽  
...  

Abstract The functional interaction between hippocampo- and striato-cortical regions during motor sequence learning is essential to trigger optimal memory consolidation. Based on previous evidence from other memory domains that stress alters the balance between these systems, we investigated whether exposure to stress prior to motor learning modulates motor memory processes. Seventy-two healthy young individuals were exposed to a stressful or nonstressful control intervention prior to training on a motor sequence learning task in a magnetic resonance imaging (MRI) scanner. Consolidation was assessed with an MRI retest after a sleep episode. Behavioral results indicate that stress prior to learning did not influence motor performance. At the neural level, stress induced both a larger recruitment of sensorimotor regions and a greater disengagement of hippocampo-cortical networks during training. Brain-behavior regression analyses showed that while this stress-induced shift from (hippocampo-)fronto-parietal to motor networks was beneficial for initial performance, it was detrimental for consolidation. Our results provide the first experimental evidence that stress modulates the neural networks recruited during motor memory processing and therefore effectively unify concepts and mechanisms from diverse memory fields. Critically, our findings suggest that intersubject variability in brain responses to stress determines the impact of stress on motor learning and subsequent consolidation.


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