Emiliano Macaluso

Emiliano Macaluso
Claude Bernard University Lyon 1 | UCBL · Département de biologie

Professor

About

203
Publications
29,284
Reads
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7,708
Citations
Additional affiliations
December 2015 - present
Claude Bernard University Lyon 1
Position
  • Professor
October 2003 - June 2016
Foundation Santa Lucia
Position
  • Managing Director
January 2000 - October 2003
University College London
Position
  • PostDoc Position

Publications

Publications (203)
Article
Visuospatial attention is strongly lateralized, with the right hemisphere commonly exhibiting stronger activation and connectivity patterns than the left hemisphere during attentive processes. However, whether such asymmetry influences inter‐hemispheric information transfer and behavioral performance is not known. Here we used a region of interest...
Article
Visuo-spatial attention prioritizes the processing of relevant inputs via different types of signals, including current goals and stimulus salience. Complex mixtures of these signals engage in everyday life situations, but little is known about how these signals jointly modulate distributed patterns of activity across the occipital regions that rep...
Article
We examined the effect of combined top-down and bottom-up attentional control sources, using known attention-related EEG components that are thought to re- flect target selection (N2pc) and distractor suppression (PD). We used endogenous cues (valid vs. neutral) for top-down attentional control, and salience in the form of color singletons (either...
Preprint
This work reports an investigation of the effect of combined top-down and bottom-up attentional control sources, using known attention-related EEG components that are thought to reflect target selection (N2pc) and distractor suppression (PD), in easy and difficult visual search tasks.
Article
Full-text available
Episodic memory entails the storage of events together with their spatio-temporal context and retrieval comprises the subjective experience of a link between the person who remembers and the episode itself. We used an encoding procedure with mobile-phones to generate experimentally-controlled episodes in the real world: object-images were sent to t...
Article
Full-text available
Previous studies demonstrated that long-term memory related to object-position in natural scenes guides visuo-spatial attention during subsequent search. Memory-guided attention has been associated with the activation of memory regions (the medial-temporal cortex) and with the fronto-parietal attention network. Notably, these circuits represent ext...
Preprint
Full-text available
Episodic memory entails the storage of events together with their spatio-temporal context and retrieval comprises the subjective experience of a link between the person who remembers and the episode itself. We used an encoding procedure with mobile-phones to generate experimentally-controlled episodes in the real world: object-images were sent to t...
Article
Full-text available
In-scanner head motion represents a major confounding factor in functional connectivity studies and it raises particular concerns when motion correlates with the effect of interest. One such instance regards research focused on functional connectivity modulations induced by sustained cognitively demanding tasks. Indeed, cognitive engagement is gene...
Article
How prospective memory (PM) weakens with increasing age has been largely debated. We hypothesized that automatic and strategic PM processes, respectively mediated by focal and non-focal cues, are differently affected by aging, even starting from 50-60 years of age. We investigated this issue using a 2 × 2 design in which focal and non-focal experim...
Article
Full-text available
Visuo-spatial attentional orienting is fundamental to selectively process behaviorally relevant information, depending on both low-level visual attributes of stimuli in the environment and higher-level factors, such as goals, expectations and prior knowledge. Growing evidence suggests an impact of the locus-cœruleus-norepinephrine (LC-NE) system in...
Article
Full-text available
The rostral prefrontal cortex (rPFC) is crucial in prospective memory (PM) behavior. Several functional magnetic resonance imaging studies showed that its medial (mrPFC) and lateral (lrPFC) portions dissociate during PM tasks. In light of the Multiprocess theory (McDaniel and Einstein 2000), here we tested whether the two portions of the rPFC are d...
Preprint
Full-text available
Visuo-spatial attentional orienting is fundamental to selectively process behaviorally relevant information, depending on both low-level visual attributes of stimuli in the environment and higher-level factors, such as goals, expectations and prior knowledge. Growing evidence suggests an impact of the locus-coeruleus-norepinephrine (LC-NE) system i...
Article
Full-text available
When looking at a speaking person, the analysis of facial kinematics contributes to language discrimination and to the decoding of the time flow of visual speech. To disentangle these two factors, we investigated behavioural and fMRI responses to familiar and unfamiliar languages when observing speech gestures with natural or reversed kinematics. T...
Article
Full-text available
Spontaneous oscillations of the blood oxygenation level-dependent (BOLD) signal are spatially synchronized within specific brain networks and are thought to reflect synchronized brain activity. Networks are modulated by the performance of a task, even if the exact features and degree of such modulations are still elusive. The presence of networks s...
Article
Full-text available
How temporal and contextual information interactively impact on behavior and brain activity during the retrieval of temporal order about naturalistic episodes remains incompletely understood. Here, we used fMRI to examine the effects of contextual signals derived from the content of the movie on the neural correlates underlying memory retrieval of...
Article
Full-text available
Previous literature demonstrated that the processing of emotional stimuli can interfere with goal-directed behavior. This has been shown primarily in the context of working memory tasks, but “emotional distraction” may affect also other processes, such as the orienting of visuo-spatial attention. During fMRI, we presented human subjects with emotio...
Article
Full-text available
Deficits of visuospatial orienting in brain-damaged patients affected by hemispatial neglect have been extensively investigated. Nonetheless, spontaneous spatial orienting in naturalistic conditions is still poorly understood. Here, we investigated the role played by top-down and stimulus-driven signals in overt spatial orienting of neglect patient...
Article
Full-text available
Social conformity refers to the tendency to align one’s own behaviors, beliefs and values to those of others. Little is known about social influence coming from a minority group. To test whether social pressure from sexual minorities triggers avoidance-motivated behaviors, we explored how being influenced by the preferences of gay peers modifies th...
Article
Full-text available
Nowadays, increasing longevity associated with declining cerebral nervous system functions, suggests the need for continued development of new imaging contrast mechanisms to support the differential diagnosis of age-related decline. In our previous papers, we developed a new imaging contrast metrics derived from anomalous diffusion signal represent...
Article
Full-text available
Brain activity at rest is characterized by widely distributed and spatially specific patterns of synchronized low-frequency blood-oxygenation level-dependent (BOLD) fluctuations, which correspond to physiologically relevant brain networks. This network behaviour is known to persist also during task execution, yet the details underlying task-associa...
Article
Objective: High blood pressure (BP) is associated with reduced pain sensitivity, known as BP-related hypoalgesia. The underlying neural mechanisms remain uncertain, yet arterial baroreceptor signaling, occurring at cardiac systole, is implicated. We examined normotensives using functional neuroimaging (fMRI) and pain stimulation during distinct ph...
Chapter
One of the ultimate goals of cognitive neuroscience is to understand how the brain works in the real world. Functional imaging with naturalistic stimuli provides us with the opportunity to study the brain in situations similar to the everyday life. This includes the processing of complex stimuli that can trigger many types of signals related both t...
Poster
Full-text available
Fronto-parietal ERPs during the encoding of simple stimuli can predict subsequent memory (Chen et al. 2014, Exp Brain Res 232:3175-90). However standard ERP methods do not allow extending these findings to more naturalistic conditions, such as memory for complex and dynamic stimuli. Inter-subject synchronization (ISS) provides us with a way to iden...
Article
Functional imaging studies have associated dorsal and ventral fronto-parietal regions with the control of visuo-spatial attention. Previous studies demonstrated that the activity of both the dorsal and the ventral attention systems can be modulated by many different factors, related both to the stimuli and the task. However, the vast majority of th...
Article
Studies indicate that both explicit and implicit processing of affectively charged stimuli may be reflected in specific behavioural markers and physiological signatures. Here, we investigated whether the pleasantness ratings of a neutral target were affected by the subliminal perception of a painful (a slap) or pleasant (a caress) touch delivered t...
Article
There are two main behavioral expressions of multisensory integration (MSI) in speech; the perceptual enhancement produced by the sight of the congruent lip movements of the speaker, and the illusory sound perceived when a speech syllable is dubbed with incongruent lip movements, in the McGurk effect. These two models have been used very often to s...
Article
Full-text available
Spontaneous low-frequency Blood-Oxygenation Level-Dependent (BOLD) signals acquired during resting state are characterized by spatial patterns of synchronous fluctuations, ultimately leading to the identification of robust brain networks. The resting-state brain networks, including the Default Mode Network (DMN), are demonstrated to persist during...
Article
Full-text available
Information processing, particularly of salient emotional stimuli, is influenced by cardiovascular afferent signals. Carotid baroreceptors signal the state of cardiovascular arousal to the brain, controlling blood pressure and heart rate via the baroreflex. Animal studies suggest a lateralization of this effect: Experimental stimulation of the righ...
Data
Supplementary Figure 1 PSD difference between 1 back and 2 back. The figure reports the 95% confidence band for the difference of LFFs power spectral density between task levels 1-back and 2-back. The confidence band does not overlap zero only below 0.02 Hz.
Data
Supplementary Figure 2 Correlation between fALFF and FC changes within the DMN, unthresholded. Unthresholded map of the correlation between fALFF and FC changes within the DMN (unthresholded version of Figure 3). Correlation was generally around 0, except some clusters of positive correlation. Only one of them reached statistical significance (high...
Conference Paper
Full-text available
Synopsis Motivated by previous results obtained in vitro, we investigated the dependence of the anomalous diffusion γ-parameter on local magnetic susceptibility differences (Δχ) in human brain. We performed diff…usion weighted experiments varying diff…usion gradient strengths in eight healthy subjects at 3.0T and measured the rate of relaxation (R2...
Article
Motivated by previous results obtained in vitro, we investigated the dependence of the anomalous diffusion (AD) MRI technique on local magnetic susceptibility differences (Δχ) driven by magnetic field inhomogeneity in human brains. The AD-imaging contrast investigated here is quantified by the stretched-exponential parameter γ, extracted from diffu...
Article
Full-text available
In daily life the brain is exposed to a large amount of external signals that compete for processing resources. The attentional system can select relevant information based on many possible combinations of goal-directed and stimulus-driven control signals. Here, we investigate the behavioral and physiological effects of competition between distinct...
Article
Individuals are able to split attention between separate locations, but divided spatial attention incurs the additional requirement of monitoring multiple streams of information. Here, we investigated divided attention using photos of natural scenes, where the rapid categorization of familiar objects and prior knowledge about the likely positions o...
Article
The role attention plays in our experience of a coherent, multisensory world is still controversial. On the one hand, a subset of inputs may be selected for detailed processing and multisensory integration in a top-down manner, i.e., guidance of multisensory integration by attention. On the other hand, stimuli may be integrated in a bottom-up fashi...
Article
Maternal care during the first year of life provides the foundation for the infant’s emotional and cognitive development. Depressive symptoms in mothers can undermine their early dyadic interaction, which may lead to various psychopathological disorders with long-term consequences. During this period, the mother-child interaction is exclusively pre...
Article
The complexity of the world around us requires the brain to select and prioritize the processing of only a subset of the incoming sensory signals. Bottom-up attention refers to the selection processes that depend on the characteristics of the sensory signals, as opposed to other control processes associated with the current goals, intentions, etc....
Poster
La memoria prospettica (MP) è una forma di memoria implicata nella realizzazione di intenzioni posticipate nel tempo. Durante il periodo di mantenimento dell’intenzione, le persone sono impegnate in attività intercorrenti (ongoing; ONG) e nei paradigmi di MP event-based, l’esecuzione dell’intenzione è associata alla comparsa di un cue (Brandimonte...
Article
Full-text available
In humans, invalid visual targets that mismatch spatial expectations induced by attentional cues are considered to selectively engage a right hemispheric "reorienting" network that includes the temporal parietal junction (TPJ), the inferior frontal gyrus (IFG), and the medial frontal gyrus (MFG). However, recent findings suggest that this hemispher...
Article
Full-text available
The Brief presentation of a complex scene entails that only a few objects can be selected, processed indepth, and stored in memory. Both low-level sensory salience and high-level context-related factors (e.g., the conceptual match/mismatch between objects and scene context) contribute to this selection process, but how the interplay between these f...
Article
Observing someone rapidly moving their eyes induces reflexive shifts of overt and covert attention in the onlooker. Previous studies have shown that this process can be modulated by the onlookers' personality, as well as by the social features of the person depicted in the cued-face. Here, we investigated whether individual's preference for social...
Article
Observing someone rapidly moving their eyes induces reflexive shifts of overt and covert attention in the onlooker. Previous studies have shown that this process can be modulated by the onlooker's personality, as well as by the social features of the person depicted in the cued face. Here, we investigated whether an individual's preference for soci...
Article
Full-text available
Recent demonstrations of scale invariance in cognitive domains prompted us to investigate whether a scale-free pattern might exist in retrieving the temporal order of events from episodic memory. We present four experiments using an encoding-retrieval paradigm with naturalistic stimuli (movies or video clips). Our studies show that temporal order j...
Article
Full-text available
Previous studies have shown that multisensory stimuli can contribute to attention control. Here we investigate whether irrelevant audio-visual stimuli can affect the processing of subsequent visual targets, in the absence of any direct bottom-up signals generated by low-level sensory changes and any goal-related associations between the multisensor...
Article
Full-text available
Several methods are available for the identification of functional networks of brain areas using functional magnetic resonance imaging (fMRI) time-series. These typically assume a fixed relationship between the signal of the areas belonging to the same network during the entire time-series (e.g., positive correlation between the areas belonging to...
Article
Full-text available
The fractionation view holds that distinct cognitive operations are mediated by subregions of the inferior parietal lobule (IPL). Within IPL, we hypothesised that retrieval-related activity in different parts of the right supramarginal gyrus (rSMG) may be modulated differentially by information acquired via different combinations of attention signa...
Article
Full-text available
We investigated the neural correlates supporting three kinds of memory judgments after very short delays using naturalistic material. In two functional magnetic resonance imaging (fMRI) experiments, subjects watched short movie clips, and after a short retention (1.5-2.5 s), made mnemonic judgments about specific aspects of the clips. In Experiment...
Article
Full-text available
The ability to detect changes in the environment is necessary for appropriate interactions with the external world. Changes in the background go more unnoticed than foreground changes, possibly because attention prioritizes processing of foreground/near stimuli. Here, we investigated the detectability of foreground and background changes within nat...
Article
Full-text available
Autonomic nervous system activity is an important component of human emotion. Mental processes influence bodily physiology, which in turn feeds back to influence thoughts and feelings. Afferent cardiovascular signals from arterial baroreceptors in the carotid sinuses are processed within the brain and contribute to this two-way communication with t...
Article
reorienting response of the left hemisphere to invalid visual targets in the right side of space: relevance for the spatial neglect syndrome, CORTEX (2015), doi: 10.1016/j.cortex.2014.12.009. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the...
Article
Full-text available
Guilt plays a significant role in the occurrence and maintenance of obsessive–compulsive disorder (OCD). Two major types of guilt have been identified: one deriving from the transgression of a moral rule (deontological guilt DG), another (altruistic guilt AG), relying on the assumption of having compromised a personal altruistic goal. Clinical evid...
Conference Paper
Full-text available
Background / Purpose: Using ecologically valid stimuli (a movie), we used a novel interference-retrieval paradigm to investigate "attention capture" in memory. We aimed to disentangle the attentional processes related to exogenous capture and prior task encoding effort during retrieval of episodic details. Main conclusion: Exogenous attention...
Article
PurposeIn this MRI study, diffusional kurtosis imaging (DKI) and T2* multiecho relaxometry were measured from the white matter (WM) of human brains and correlated with each other, with the aim of investigating the influence of magnetic-susceptibility (ΔχH2O-TISSUE) on the contrast.Methods We focused our in vivo analysis on assessing the dependence...
Article
Full-text available
Previous studies on crossmodal spatial orienting typically used simple and stereotyped stimuli in the absence of any meaningful context. This study combined computational models, behavioural measures and functional magnetic resonance imaging to investigate audiovisual spatial interactions in naturalistic settings. We created short videos portraying...