Rasha Abdel Rahman

Rasha Abdel Rahman
Humboldt-Universität zu Berlin | HU Berlin · Neurocognitive Psychology Research Unit

About

128
Publications
26,481
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2,194
Citations

Publications

Publications (128)
Article
Full-text available
The role of meaning facets based on sensorimotor experiences is well-investigated in comprehension but has received little attention in language production research. In two experiments, we investigated whether experiential traces of space influenced lexical choices when participants completed visually-presented sentence fragments (e.g., ‘You are at...
Article
Full-text available
When naming a sequence of pictures of the same semantic category (e.g., furniture ), response latencies systematically increase with each named category member. This cumulative semantic interference effect has become a popular tool to investigate the cognitive architecture of language production. However, not all processes underlying the effect its...
Article
Full-text available
Human visual perception is efficient, flexible and context-sensitive. The Bayesian brain view explains this with probabilistic perceptual inference integrating prior experience and knowledge through top-down influences. Advances in machine learning, such as Artificial Neural Networks (ANNs), have enabled considerable progress in computer vision. Un...
Article
For experimental research on language production, temporal precision and high quality of the recorded audio files are imperative. These requirements are a considerable challenge if language production is to be investigated online. However, online research has huge potential in terms of efficiency, ecological validity and diversity of study populati...
Article
Numerous studies demonstrate that the production of words is delayed when speakers process in temporal proximity semantically related words. Yet the experimental settings underlying this effect are different from those under which we typically speak. This study demonstrates that semantic interference disappears, and can even turn into facilitation,...
Article
Full-text available
In the present study, we employed event-related brain potentials to investigate the effects of semantic similarity on different planning stages during language production. We manipulated semantic similarity by controlling feature overlap within taxonomical hierarchies. In a blocked-cyclic naming task, participants named pictures in repeated cycles,...
Preprint
The role of meaning facets based on sensorimotor experiences is well-investigated in comprehension but has received little attention in language production research. In two experiments, we investigated whether experiential traces of space influenced lexical choices when participants completed visually-presented sentence fragments (e.g., ‘You are at...
Article
Full-text available
Language production experiments with overt articulation have thus far only scarcely been conducted online, mostly due to technical difficulties related to measuring voice onset latencies. Especially the poor audiovisual synchrony in web experiments (Bridges et al. 2020) is a challenge to time-locking stimuli and participants’ spoken responses. We t...
Poster
Full-text available
This study investigates partner-specific neural representations when preparing to address different task partners: a human, a Pepper robot, or a computer.
Article
Full-text available
When listening to a speaker, we need to adapt to her individual speaking char- acteristics, such as error proneness, accent, etc. The present study investigated two aspects of adaptation to speaker identity during processing spoken sentences in multi-speaker situations: the effect of speaker sequence across sentences and the effect of learning spea...
Article
Full-text available
The lexical representation of compound words in speech production is still under debate. While most studies with healthy adult speakers suggest that a single lemma representation is active during compound production, data from neuropsychological studies point towards multiple representations, with activation of the compound’s constituent lemmas in...
Article
Remedies to counter the impact of misinformation are in high demand, but little is known about the neuro-cognitive consequences of untrustworthy information and how they can be mitigated. In this preregistered study, we investigated the effects of social-emotional headline contents on social judgments and brain responses and whether they can be mod...
Article
One of the ongoing debates about visual consciousness is whether it can be considered as an all-or-none or a graded phenomenon. While there is increasing evidence for the existence of graded states of conscious awareness based on paradigms such as visual masking, only little and mixed evidence is available for the attentional blink paradigm, specif...
Article
Full-text available
Despite recent developments in integrating autonomous and human-like robots into many aspects of everyday life, social interactions with robots are still a challenge. Here, we focus on a central tool for social interaction: verbal communication. We assess the extent to which humans co-represent (simulate and predict) a robot’s verbal actions. Durin...
Article
Full-text available
This study investigates in a joint action setting a well-established effect in speech production, cumulative semantic interference, an increase in naming latencies when naming a series of semantically related pictures. In a joint action setting, two task partners take turns naming pictures. Previous work in this setting has demonstrated that naming...
Article
Our capacity to derive meaning from things that we see and words that we hear is unparalleled in other animal species and current AI systems. Despite a wealth of functional magnetic resonance imaging (fMRI) studies on where different semantic features are processed in the adult brain, the development of these systems in children is poorly understoo...
Preprint
For experimental research on language production, temporal precision and high quality of the recorded audio-files are mandatory. These requirements are a considerable challenge if language production is to be investigated online. However, online research has a huge potential regarding efficiency, ecological validity and diversity of study-populatio...
Preprint
Full-text available
Our capacity to derive meaning from things that we see and words that we hear is unparalleled in other animal species and current AI systems. Despite a wealth of functional magnetic resonance imaging (fMRI) studies on where different semantic features are processed in the adult brain, the development of these systems in children is poorly understoo...
Article
When we refer to an object or concept by its name, activation of semantic and categorical information is necessary to retrieve the correct lexical representation. Whereas in neurotypical individuals it is well established that semantic context can interfere with or facilitate lexical retrieval, these effects are much less studied in people with les...
Article
This study investigates the production of nominal compounds (Experiment 1) and simple nouns (Experiment 2) in a picture-word interference (PWI) paradigm to test models of morpho-lexical representation and processing. The continuous electroencephalogram (EEG) was registered and event-related brain potentials [ERPs] were analyzed in addition to pictu...
Article
Full-text available
The diversified methodology and expertise of interdisciplinary research teams provide the opportunity to overcome the limited perspectives of individual disciplines. This is particularly true at the interface of Robotics, Neuroscience, and Psychology as the three fields have quite different perspectives and approaches to offer. Nonetheless, alignin...
Article
In this preregistered study, we investigate whether themes conveyed by task partners’ narratives reveal semantic relationships between objects that would otherwise be perceived as unrelated. Such ad-hoc formation of thematic relations should result in semantic interference when naming objects related to the theme in a blocked-cyclic naming paradigm...
Article
How domain-general cognitive control is engaged in language processing remains debated. We address how linguistic processes are monitored and regulated by analyzing the effects of previous-trial sentence correctness on the P600 component of the event-related potential (ERP) in the current-trial. In data from a previous experiment about processing s...
Preprint
Full-text available
Not all visual stimuli processed by the brain reach the level of conscious perception. Previous research has shown that the emotional value of a stimulus is one of the factors that can affect whether it is consciously perceived. Here, we investigated whether social-affective knowledge influences a face's chance to reach visual consciousness. Furthe...
Preprint
Full-text available
Language production experiments with overt articulation have thus far only scarcely been conducted online, mostly due to technical difficulties related to measuring voice onset latencies. Especially the poor audiovisual synchrony in web experiments (Bridges et al., 2020) is a challenge to time-locking stimuli and participants' spoken responses. We...
Article
Full-text available
Natural use of language involves at least two individuals. Some studies have focused on the interaction between senders in communicative situations and how the knowledge about the speaker can bias language comprehension. However, the mere effect of a face as social context on language processing remains unknown. In the present study we used event-r...
Preprint
Full-text available
One of the ongoing debates about visual consciousness is whether it can be considered as an all-or-none or a graded phenomenon. This may depend on the experimental paradigm and the task used to investigate this question. The present event-related potential study (N = 32) focuses on the attentional blink paradigm for which so far only little and mix...
Preprint
When we refer to an object or concept by its name, activation of semantic and categorical information is necessary to retrieve the correct lexical representation. While in neurotypical participants it is well established that semantic context can interfere with or facilitate lexical retrieval, these effects are much less studied in people with lesi...
Conference Paper
Full-text available
Robots are getting increasingly more present in many spheres of human life, making the need for robots that can successfully engage in natural social interactions with humans paramount. Successful human-robot interaction could be achieved more effectively if robots could act predictably and could predict the humans' actions. If robots could represe...
Article
Full-text available
How does the credibility we attribute to media sources influence our opinions and judgments derived from news? Participants read headlines about the social behavior of depicted unfamiliar persons from websites of trusted or distrusted well-known German news media. As a consequence, persons paired with negative or positive headlines were judged more...
Preprint
Full-text available
In the present study we show that people's social judgments rely to a large extent on the emotional content of information encountered, apparently unperturbed by its trustworthiness We investigated the potential underlying cognitive-emotional mechanisms reflected in pupil dilation during social judgments and the confidence with which social judgmen...
Article
Does language change what we perceive? Does speaking different languages cause us to perceive things differently? We review the behavioral and electrophysiological evidence for the influence of language on perception, with an emphasis on the visual modality. Effects of language on perception can be observed both in higher-level processes such as re...
Article
Language production ultimately aims to convey meaning. Yet words differ widely in the richness and density of their semantic representations, and these differences impact conceptual and lexical processes during speech planning. Here, we replicated the recent finding that semantic richness, measured as the number of associated semantic features acco...
Preprint
Full-text available
Numerous studies demonstrate that the production of words is delayed when speakers process in temporal proximity semantically related words. Yet the experimental settings underlying this effect are different from those under which we typically speak. This study demonstrates that semantic interference disappears, and can even turn into facilitation,...
Preprint
Full-text available
This study investigates in a joint action setting a well-established effect in speech production, cumulative semantic interference, an increase in naming latencies when naming a series of semantically related pictures. In a joint action setting, two task partners take turns naming pictures. Previous work in this setting demonstrated that naming lat...
Poster
Full-text available
Previous research suggests that a task partner's speaking affects own language production. In single-subject settings, naming latencies for semantically related objects increase with each additional semantic category member (cumulative semantic interference effect, Howard et al., (2006). In dual-subject settings, in which two partners take turns na...
Article
How we perceive and evaluate other persons depends on appearance-based impressions as well as top-down information such as knowledge about someone’s character. To date, little is known about how these two sources of information affect the conscious perception of faces, about their relative contributions and possible interactions. Here, we directly...
Preprint
Does language “reach into” perception to change what we perceive? Does speak- ing different languages cause us to perceive things differently? We review the behavioral and electrophysiological evidence that visual perception is shaped by both long-term experience with language and its rapid involvement in-the- moment. These effects can be observed...
Article
Full-text available
Semantic context modulates precision and speed of language production. Using different experimental designs including the Picture-Word-Interference (PWI) paradigm, it has consistently been shown that categorically related distractor words (e.g., cat) inhibit retrieval of the target picture name (dog). Here we introduce a novel variant of the PWI pa...
Preprint
Full-text available
How does the credibility we attribute to media sources influence our opinions and judgments derived from news? Participants read headlines about the social behavior of depicted unfamiliar persons from websites of trusted or distrusted well-known German news media. As a consequence, persons paired with negative or positive headlines were judged more...
Article
Zusammenfassung Welche Wirkung hat soziale Ausgrenzung auf die Wahrnehmung des Gegenübers und wie kann dieser Effekt mithilfe experimenteller Methoden erfasst werden? Die Beantwortung dieser Frage kann Psychologen, Soziologen, aber auch Klinikern wertvolle Erkenntnisse für das Verständnis und den konkreten Umgang mit den betroffenen Menschen oder G...
Preprint
Full-text available
When we imagine an object and when we actually see that object, similar brain regions become active. Yet, the time course of neurocognitive mechanisms that support imagery is still largely unknown. The current view holds that imagery does not share early perceptual mechanisms, but starts with high-level visual representations. However, evidence of...
Preprint
Semantic context modulates precision and speed of language production. Using different experimental designs including the Picture-Word-Interference (PWI) paradigm, it has consistently been shown that categorically related distractor words (e.g., cat) inhibit retrieval of the target picture name (dog). Here we introduce a novel variant of the PWI pa...
Article
Semantic processing in language production includes different meaning relations determining the selection of lexical representations that best express the intended message. Here, we discuss assumptions of the swinging lexical network proposal (SLN), proposed to account for effects of different semantic relations in a variety of experimental paradig...
Article
It is becoming increasingly established that information from long-term memory can influence early perceptual processing, a finding that is in line with recent theoretical approaches to cognition such as the predictive coding framework. Notwithstanding, the impact of semantic knowledge on conscious perception and the temporal dynamics of such an in...
Article
In the Stroop task color words are shown in various print colors. When print colors are named or classified with button presses, interference occurs if word meaning is color-incongruent and facilitation if it is congruent. Although the Stroop effects in vocal and manual task versions are similar, it is unclear whether the underlying mechanisms are...
Article
Full-text available
With event-related potentials we examined how speaker identity affects the processing of speech errors. In two experiments with probe verification and sentence correctness judgement tasks, respectively, grammatical agreement violations and slips of the tongue were embedded in German sentences spoken in native or Chinese accent. Portraits of Europea...
Article
With event-related potentials we examined how speaker identity affects the processing of speech errors. In two experiments with probe verification and sentence correctness judgement tasks, respectively, grammatical agreement violations and slips of the tongue were embedded in German sentences spoken in native or Chinese accent. Portraits of Europea...
Preprint
Affective information about other people’s social behavior may prejudice social interactions and bias person judgments. The trustworthiness of person-related information, however, can vary considerably, as in the case of gossip, rumours, lies, or so-called “fake news”. Here, we investigated how spontaneous person-likability and explicit person judg...
Article
Language is assumed to augment human cognition. But can language also affect basic mechanisms of perception, suggesting cognitive penetrability of perception? This idea is highly controversial: linguistic categorization may induce top-down effects on ongoing perceptual processing. Alternatively, such effects may not concern perception proper, but p...
Preprint
Full-text available
Language production ultimately aims to convey meaning. Yet, words differ widely in the richness and density of their semantic representations and these differences impact conceptual and lexical processes during speech planning. Here, we replicate the recent finding that semantic richness, measured as the number of associated semantic features accor...
Article
Full-text available
Affective information about other people’s social behavior may prejudice social interactions and bias person judgments. The trustworthiness of person-related information, however, can vary considerably, as in the case of gossip, rumors, lies, or “fake news.” Here, we investigated how spontaneous person likability and explicit person judgments are i...
Article
This study investigated effects of healthy ageing and of non-verbal attentional control on speech production. Young and older speakers participated in a picture-word interference (PWI) task with compound targets. To increase the processing load, the two pictures of the compounds' constituents were presented side-by-side for spoken naming (e.g., a p...
Article
The production of nominal compounds in the presence of morphological, semantic, and unrelated distractor words (picture-word interference paradigm) was investigated in young (M = 27 years) and older (M = 70.5 years) German speakers to test models of speech production and lexical representation. Constituent distractors of compound targets (lip or st...
Article
Full-text available
The present study investigated how lexical selection is influenced by the number of semantically related representations (semantic neighbourhood density) and their similarity (semantic distance) to the target in a speeded picture-naming task. Semantic neighbourhood density and similarity as continuous variables were used to assess lexical selection...
Article
Full-text available
Heterogeneous effects of semantic distance in language production have sparked a debate on the central assumption of many language production models, namely that lexical selection is a competitive process. In the present ERP study, we manipulated semantic distance in the picture word interference (PWI) paradigm systematically within taxonomic hiera...
Article
Full-text available
Can our native language influence what we consciously perceive? While evidence accumulates that language modulates visual discrimination, little is known about the relation between language structure and consciousness. We employed EEG and the attentional blink paradigm in which targets are often unnoticed. Native Greek speakers (N=28), who distingu...
Article
The ultimate goal of speaking is to convey meaning, and meaning may relate not only to categorical or associative semantics, but also to social and emotional aspects. However, while semantic effects are well-investigated, little is known about how emotional contents shape different planning stages during language production. In two experiments we i...
Article
Full-text available
Here we present an application of an EEG processing pipeline customizing EEGLAB and FieldTrip functions, specifically optimized to flexibly analyze EEG data based on single trial information. The key component of our approach is to create a comprehensive 3-D EEG data structure including all trials and all participants maintaining the original order...
Article
Here we present an application of an EEG processing pipeline customizing EEGLAB and FieldTrip functions, specifically optimized to flexibly analyze EEG data based on single trial information. The key component of our approach is to create a comprehensive 3-D EEG data structure including all trials and all participants maintaining the original order...
Poster
Full-text available
Functional Loci of Verbal and Manual Stroop Effects and their Reduction by Posthypnotic Suggestions: EEG and ERP Analyses
Article
Acting jointly with a partner is different from acting alone. In this study we investigate whether speaking with a partner is different from speaking alone. Drawing upon a well-established effect in language production we investigate the degree of cumulative semantic interference experienced when naming a sequence of pictures together with a partne...
Article
Full-text available
Overt articulation produces strong artifacts in the electroencephalogram and in event-related potentials (ERPs), posing a serious problem for investigating language production with these variables. Here we describe the properties of articulation-related artifacts and propose a novel correction procedure. Experiment 1 co-recorded ERPs and trajectori...
Article
We investigated within-category semantic distance effects in the continuous naming paradigm with reaction times (RTs) and event-related potentials (ERPs). Cumulative semantic interference and ERP effects were observed only for closely related members of basic level categories with high feature overlap (e.g. apes: orangutan, chimpanzee), indicating...