Papers by Maria Montefinese
Italy was the first Western country with numerous COVID-19 infections that underwent a strong loc... more Italy was the first Western country with numerous COVID-19 infections that underwent a strong lockdown. This represents the first threat-related mass isolation in the history that can be in-depth studied by scientists to understand the side effects of pandemic lockdown in the psychophysical domain. There is increasing evidence that Italian lockdown was associated with larger incidence of stress, anxiety, and mood symptoms. It was thus expected that, at a more basic level, also emotion perception -namely how an individual judges the affective content of common words- changed substantially during lockdown, especially in individuals with high COVID-19 fear and high negative affect. We measured the effects of this long-term isolation and the related pandemic phobia in an online survey on 71 healthy Italian participants. They completed the Positive and Negative Affect Schedule and Fear of COVID-19 Scale and judged valence, arousal, and dominance of words either related or unrelated to CO...
Models of semantic representation predict that automatic priming is determined by associative and... more Models of semantic representation predict that automatic priming is determined by associative and co-occurrence relations (i.e., spreading activation accounts), or to similarity in…
Biological psychology, 2018
Differences in pupil dilation are observed for studied compared to new items in recognition memor... more Differences in pupil dilation are observed for studied compared to new items in recognition memory. According to cognitive load theory, this effect reflects the greater cognitive demands of retrieving contextual information from study phase. Pupil dilation can also occur when new items conceptually related to old ones are erroneously recognized as old, but the aspects of similarity that modulate false memory and related pupil responses remain unclear. We investigated this issue by manipulating the degree of featural similarity between new (unstudied) and old (studied) concepts in an old/new recognition task. We found that new concepts with high similarity were mistakenly identified as old and had greater pupil dilation than those with low similarity, suggesting that pupil dilation reflects the strength of evidence on which recognition judgments are based and, importantly, greater locus coeruleus and prefrontal activity determined by the higher degree of retrieval monitoring involved...
Cognition & emotion, Jan 6, 2018
In this study, we tested the linguistic relativity hypothesis by studying the effect of grammatic... more In this study, we tested the linguistic relativity hypothesis by studying the effect of grammatical gender (feminine vs. masculine) on affective judgments of conceptual representation in Italian and German. In particular, we examined the within- and cross-language grammatical gender effect and its interaction with participants' demographic characteristics (such as, the raters' age and sex) on semantic differential scales (affective ratings of valence, arousal and dominance) in Italian and German speakers. We selected the stimuli and the relative affective measures from Italian and German adaptations of the ANEW (Affective Norms for English Words). Bayesian and frequentist analyses yielded evidence for the absence of within- and cross-languages effects of grammatical gender and sex- and age-dependent interactions. These results suggest that grammatical gender does not affect judgments of affective features of semantic representation in Italian and German speakers, since an ov...
Frontiers in Psychology, 2015
Frontiers in psychology, 2015
Psychological Research, 2014
In everyday life, human beings can report memories of past events that did not occur or that occu... more In everyday life, human beings can report memories of past events that did not occur or that occurred differently from the way they remember them because memory is an imperfect process of reconstruction and is prone to distortion and errors. In this recognition study using word stimuli, we investigated whether a specific operationalization of semantic similarity among concepts can modulate false memories while controlling for the possible effect of associative strength and word co-occurrence in an old-new recognition task. The semantic similarity value of each new concept was calculated as the mean cosine similarity between pairs of vectors representing that new concept and each old concept belonging to the same semantic category. Results showed that, compared with (new) low-similarity concepts, (new) highsimilarity concepts had significantly higher probability of being falsely recognized as old, even after partialling out the effect of confounding variables, including associative relatedness and lexical co-occurrence. This finding supports the feature-based view of semantic memory, suggesting that meaning overlap and sharing of semantic features (which are greater when more similar semantic concepts are being processed) have an influence on recognition performance, resulting in more false alarms for new high-similarity concepts. We propose that the associative strength and word co-occurrence among concepts are not sufficient to explain illusory memories but is important to take into account also the effects of featurebased semantic relations, and, in particular, the semantic similarity among concepts.
Frontiers in Behavioral Neuroscience, 2013
Memory & Cognition, 2013
According to the feature-based model of semantic memory, concepts are described by a set of seman... more According to the feature-based model of semantic memory, concepts are described by a set of semantic features that contribute, with different weights, to the meaning of a concept. Interestingly, this theoretical framework has introduced numerous dimensions to describe semantic features. Recently, we proposed a new parameter to measure the importance of a semantic feature for the conceptual representationthat is, semantic significance. Here, with speeded verification tasks, we tested the predictive value of our index and investigated the relative roles of conceptual and featural dimensions on the participants' performance. The results showed that semantic significance is a good predictor of participants' verification latencies and suggested that it efficiently captures the salience of a feature for the computation of the meaning of a given concept. Therefore, we suggest that semantic significance can be considered an effective index of the importance of a feature in a given conceptual representation. Moreover, we propose that it may have straightforward implications for feature-based models of semantic memory, as an important additional factor for understanding conceptual representation.
International Journal of Psychophysiology, 2013
Human memory is an imperfect process, prone to distortion and errors that range from minor distur... more Human memory is an imperfect process, prone to distortion and errors that range from minor disturbances to major errors that can have serious consequences on everyday life. In this study, we investigated false remembering of manipulatory verbs using an explicit recognition task and pupillometry. Our results replicated the "classical" pupil old/new effect as well as data in false remembering literature that show how items must be recognize as old in order for the pupil size to increase (e.g., "subjective" pupil old/new effect), even though these items do not necessarily have to be truly old. These findings support the strength-of-memory trace account that affirms that pupil dilation is related to experience rather than to the accuracy of recognition. Moreover, behavioral results showed higher rates of true and false recognitions for manipulatory verbs and a consequent larger pupil diameter, supporting the embodied view of language.
Behavior Research Methods, 2012
Of the eight electronic supplementary material (ESM) files included with this article, seven were... more Of the eight electronic supplementary material (ESM) files included with this article, seven were inadvertently omitted. All ESM files are now available online.
Behavior Research Methods, 2012
Semantic norms for properties produced by native speakers are valuable tools for researchers inte... more Semantic norms for properties produced by native speakers are valuable tools for researchers interested in the structure of semantic memory and in category-specific semantic deficits in individuals following brain damage. The aims of this study were threefold. First, we sought to extend existing semantic norms by adopting an empirical approach to category (Exp. 1) and concept (Exp. 2) selection, in order to obtain a more representative set of semantic memory features. Second, we extensively outlined a new set of semantic production norms collected from Italian native speakers for 120 artifactual and natural basic-level concepts, using numerous measures and statistics following a featurelisting task (Exp. 3b). Finally, we aimed to create a new publicly accessible database, since only a few existing databases are publicly available online.
Cognitive processing, Jan 17, 2018
It is widely accepted that different number-related tasks, including solving simple addition and ... more It is widely accepted that different number-related tasks, including solving simple addition and subtraction, may induce attentional shifts on the so-called mental number line, which represents larger numbers on the right and smaller numbers on the left. Recently, it has been shown that different number-related tasks also employ spatial attention shifts along with general cognitive processes. Here we investigated for the first time whether number line estimation and complex mental arithmetic recruit a common mechanism in healthy adults. Participants' performance in two-digit mental additions and subtractions using visual stimuli was compared with their performance in a mental bisection task using auditory numerical intervals. Results showed significant correlations between participants' performance in number line bisection and that in two-digit mental arithmetic operations, especially in additions, providing a first proof of a shared cognitive mechanism (or multiple shared c...
Specialty section: This article was submitted to Cognition, a section of the journal
Functional specificity of the locus coeruleus-norepinephrine system in the attentional networks
Cognitive Science, 2017
Similarity measures, extent to which two concepts have similar meanings, are key to understanding... more Similarity measures, extent to which two concepts have similar meanings, are key to understanding how concepts are represented, with different theoretical perspectives relying on very different sources of data from which similarity can be calculated. Experiential/embodied theories use verbal features or property ratings; distributional/relational ones use cooccurrence. Similarity may also be estimated from tasks like word-association, priming, and other rating studies. Often the different theoretical perspectives are placed in opposition; here we test the extent to which similarity representations based on different measures converge. We used Representational Similarity Analysis and multidimensional scaling on 31 similarity measures. Similarity in age-of-acquisition and word-length were related to similarity in naming and priming; and affective similarity and co-occurrence were also related. More importantly, representational resemblance was shown among embodied, distributional and ...
Patients with multimodal semantic impairment following stroke (referred to here as ‘semantic apha... more Patients with multimodal semantic impairment following stroke (referred to here as ‘semantic aphasia’, SA) are highly sensitive to the cognitive control demands of the task being performed and poor at inhibiting strongly associated distracters and focusing on less dominant aspects of meaning. Here, using feature selection tasks, we tested the role played by a semantic measure of featural salience on the control processes in healthy participants (Experiment 1) and SA patients (Experiment 2). Healthy participants showed a worse performance when the distracter feature was highly salient and the target feature was less salient for the concept, i.e., when there was an interference with voluntary selection of the target feature (Experiment 1). Consistent with these results, the SA patients showed a poorer performance than older controls when the target feature was weakly related to the concept (Experiment 2). In line with the feature-based models of the semantic memory, we discuss these p...
PeerJ, 2021
Background The strong and long lockdown adopted by the Italian government to limit COVID-19 sprea... more Background The strong and long lockdown adopted by the Italian government to limit COVID-19 spreading represents the first threat-related mass isolation in history that can be studied in depth by scientists to understand individuals’ emotional response to a pandemic. Methods We investigated the effects on individuals’ mental wellbeing of this long-term isolation by means of an online survey on 71 Italian volunteers. They completed the Positive and Negative Affect Schedule and Fear of COVID-19 Scale and judged valence, arousal, and dominance of words either related or unrelated to COVID-19, as identified by Google search trends. Results Emotional judgments changes from normative data varied depending on word type and individuals’ emotional state, revealing early signals of individuals’ mental distress to COVID-19 confinement. All individuals judged COVID-19-related words to be less positive and dominant. However, individuals with more negative feelings and COVID-19 fear also judged C...
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Papers by Maria Montefinese