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Elhamiasl M, Sanches Braga Figueira J, Barry-Anwar R, Pestana Z, Keil A, Scott LS. The emergence of the EEG dominant rhythm across the first year of life. Cereb Cortex 2024; 34:bhad425. [PMID: 37955646 DOI: 10.1093/cercor/bhad425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 11/14/2023] Open
Abstract
The spectral composition of EEG provides important information on the function of the developing brain. For example, the frequency of the dominant rhythm, a salient features of EEG data, increases from infancy to adulthood. Changes of the dominant rhythm during infancy are yet to be fully characterized, in terms of their developmental trajectory and spectral characteristics. In this study, the development of dominant rhythm frequency was examined during a novel sustained attention task across 6-month-old (n = 39), 9-month-old (n = 30), and 12-month-old (n = 28) infants. During this task, computer-generated objects and faces floated down a computer screen for 10 s after a 5-second fixation cross. The peak frequency in the range between 5 and 9 Hz was calculated using center of gravity (CoG) and examined in response to faces and objects. Results indicated that peak frequency increased from 6 to 9 to 12 months of age in face and object conditions. We replicated the same result for the baseline. There was high reliability between the CoGs in the face, object, and baseline conditions across all channels. The developmental increase in CoG was more reliable than measures of mode frequency across different conditions. These findings suggest that CoG is a robust index of brain development across infancy.
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Affiliation(s)
- Mina Elhamiasl
- Department of Psychology, University of Florida, Gainesville, FL 32611, United States
| | | | - Ryan Barry-Anwar
- Department of Psychology, University of Florida, Gainesville, FL 32611, United States
| | - Zoe Pestana
- Department of Psychology, University of California, Davis, CA 95616, United States
| | - Andreas Keil
- Department of Psychology, University of Florida, Gainesville, FL 32611, United States
| | - Lisa S Scott
- Department of Psychology, University of Florida, Gainesville, FL 32611, United States
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2
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Köster M, Brzozowska A, Bánki A, Tünte M, Ward EK, Hoehl S. Rhythmic visual stimulation as a window into early brain development: A systematic review. Dev Cogn Neurosci 2023; 64:101315. [PMID: 37948945 PMCID: PMC10663747 DOI: 10.1016/j.dcn.2023.101315] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/22/2023] [Accepted: 10/12/2023] [Indexed: 11/12/2023] Open
Abstract
Rhythmic visual stimulation (RVS), the periodic presentation of visual stimuli to elicit a rhythmic brain response, is increasingly applied to reveal insights into early neurocognitive development. Our systematic review identified 69 studies applying RVS in 0- to 6-year-olds. RVS has long been used to study the development of the visual system and applications have more recently been expanded to uncover higher cognitive functions in the developing brain, including overt and covert attention, face and object perception, numeral cognition, and predictive processing. These insights are owed to the unique benefits of RVS, such as the targeted frequency and stimulus-specific neural responses, as well as a remarkable signal-to-noise ratio. Yet, neural mechanisms underlying the RVS response are still poorly understood. We discuss critical challenges and avenues for future research, and the unique potentials the method holds. With this review, we provide a resource for researchers interested in the breadth of developmental RVS research and hope to inspire the future use of this cutting-edge method in developmental cognitive neuroscience.
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Affiliation(s)
- Moritz Köster
- University of Regensburg, Institute of Psychology, Germany.
| | | | - Anna Bánki
- University of Vienna, Faculty of Psychology, Austria
| | - Markus Tünte
- University of Vienna, Faculty of Psychology, Austria
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3
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Bertels J, de Heering A, Bourguignon M, Cleeremans A, Destrebecqz A. What determines the neural response to snakes in the infant brain? A systematic comparison of color and grayscale stimuli. Front Psychol 2023; 14:1027872. [PMID: 36993883 PMCID: PMC10040846 DOI: 10.3389/fpsyg.2023.1027872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 02/13/2023] [Indexed: 03/18/2023] Open
Abstract
Snakes and primates have coexisted for thousands of years. Given that snakes are the first of the major primate predators, natural selection may have favored primates whose snake detection abilities allowed for better defensive behavior. Aligning with this idea, we recently provided evidence for an inborn mechanism anchored in the human brain that promptly detects snakes, based on their characteristic visual features. What are the critical visual features driving human neural responses to snakes is an unresolved issue. While their prototypical curvilinear coiled shape seems of major importance, it remains possible that the brain responds to a blend of other visual features. Coloration, in particular, might be of major importance, as it has been shown to act as a powerful aposematic signal. Here, we specifically examine whether color impacts snake-specific responses in the naive, immature infant brain. For this purpose, we recorded the brain activity of 6-to 11-month-old infants using electroencephalography (EEG), while they watched sequences of color or grayscale animal pictures flickering at a periodic rate. We showed that glancing at colored and grayscale snakes generated specific neural responses in the occipital region of the brain. Color did not exert a major influence on the infant brain response but strongly increased the attention devoted to the visual streams. Remarkably, age predicted the strength of the snake-specific response. These results highlight that the expression of the brain-anchored reaction to coiled snakes bears on the refinement of the visual system.
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Affiliation(s)
- Julie Bertels
- ULBabyLab, Consciousness, Cognition and Computation Group (CO3), Center for Research in Cognition and Neurosciences (CRCN), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
- Laboratoire de Neuroanatomie et de Neuroimagerie Translationnelles (LNT), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
- *Correspondence: Julie Bertels,
| | - Adelaïde de Heering
- LulLABy, Unité de Recherche en Neurosciences Cognitives (UNESCOG), Center for Research in Cognition and Neurosciences (CRCN), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Mathieu Bourguignon
- Laboratoire de Neuroanatomie et de Neuroimagerie Translationnelles (LNT), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
- Laboratory of Neurophysiology and Movement Biomechanics, ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Axel Cleeremans
- ULBabyLab, Consciousness, Cognition and Computation Group (CO3), Center for Research in Cognition and Neurosciences (CRCN), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Arnaud Destrebecqz
- ULBabyLab, Consciousness, Cognition and Computation Group (CO3), Center for Research in Cognition and Neurosciences (CRCN), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
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4
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Kutlu E, Barry-Anwar R, Pestana Z, Keil A, Scott LS. A label isn't just a label: Brief training leads to label-dependent visuo-cortical processing in adults. Neuropsychologia 2023; 178:108443. [PMID: 36481257 DOI: 10.1016/j.neuropsychologia.2022.108443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 10/26/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022]
Abstract
The current study examines the extent to which hearing individual-level names (e.g., Jimmy) and category-level labels (e.g., Hitchel) paired with novel objects impacts neural responses across a brief (6 min) learning period. Event-related Potentials (ERPs) were recorded while adult participants (n = 44) viewed and heard exemplars of two different species of named novel objects. ERPs were examined for each labeling condition and compared across the first and second half of the learning trials (∼3 min/half). Mean amplitude decreased for the P1 and increased for the N170 from the first to the second half of trials. The decrease in P1 was right lateralized. In addition, the P1 amplitude recorded over right occipitotemporal regions was greater than left occipitotemporal areas, but only for objects paired with individual-level labels. Category-level labels did not show regional P1 differences. The N250 component was greatest over the right occipitotemporal region and was enhanced for objects labeled with individual-level relative to category-level names during the second half of trials. Overall, these findings highlight the unfolding of label-dependent visual processing across a short training period in adults. The results suggest that linguistic labels have an important, top-down impact, on visual processing and that label specificity shapes visuo-cortical responses within a 6-min learning period.
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Affiliation(s)
- Ethan Kutlu
- Psychological and Brain Sciences, University of Iowa, USA
| | | | | | - Andreas Keil
- Department of Psychology, University of Florida, USA
| | - Lisa S Scott
- Department of Psychology, University of Florida, USA.
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5
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Niesen M, Bourguignon M, Bertels J, Vander Ghinst M, Wens V, Goldman S, De Tiège X. Cortical tracking of lexical speech units in a multi-talker background is immature in school-aged children. Neuroimage 2023; 265:119770. [PMID: 36462732 DOI: 10.1016/j.neuroimage.2022.119770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 11/09/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022] Open
Abstract
Children have more difficulty perceiving speech in noise than adults. Whether this difficulty relates to an immature processing of prosodic or linguistic elements of the attended speech is still unclear. To address the impact of noise on linguistic processing per se, we assessed how babble noise impacts the cortical tracking of intelligible speech devoid of prosody in school-aged children and adults. Twenty adults and twenty children (7-9 years) listened to synthesized French monosyllabic words presented at 2.5 Hz, either randomly or in 4-word hierarchical structures wherein 2 words formed a phrase at 1.25 Hz, and 2 phrases formed a sentence at 0.625 Hz, with or without babble noise. Neuromagnetic responses to words, phrases and sentences were identified and source-localized. Children and adults displayed significant cortical tracking of words in all conditions, and of phrases and sentences only when words formed meaningful sentences. In children compared with adults, the cortical tracking was lower for all linguistic units in conditions without noise. In the presence of noise, the cortical tracking was similarly reduced for sentence units in both groups, but remained stable for phrase units. Critically, when there was noise, adults increased the cortical tracking of monosyllabic words in the inferior frontal gyri and supratemporal auditory cortices but children did not. This study demonstrates that the difficulties of school-aged children in understanding speech in a multi-talker background might be partly due to an immature tracking of lexical but not supra-lexical linguistic units.
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Affiliation(s)
- Maxime Niesen
- Université libre de Bruxelles (ULB), UNI - ULB Neurosciences Institute, Laboratoire de Neuroanatomie et de Neuroimagerie translationnelles (LN2T), 1070 Brussels, Belgium; Université libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, Department of Otorhinolaryngology, 1070 Brussels, Belgium.
| | - Mathieu Bourguignon
- Université libre de Bruxelles (ULB), UNI - ULB Neurosciences Institute, Laboratoire de Neuroanatomie et de Neuroimagerie translationnelles (LN2T), 1070 Brussels, Belgium; Université libre de Bruxelles (ULB), UNI-ULB Neuroscience Institute, Laboratory of Neurophysiology and Movement Biomechanics, 1070 Brussels, Belgium.; BCBL, Basque Center on Cognition, Brain and Language, 20009 San Sebastian, Spain
| | - Julie Bertels
- Université libre de Bruxelles (ULB), UNI - ULB Neurosciences Institute, Laboratoire de Neuroanatomie et de Neuroimagerie translationnelles (LN2T), 1070 Brussels, Belgium; Université libre de Bruxelles (ULB), UNI-ULB Neuroscience Institute, Cognition and Computation group, ULBabyLab - Consciousness, Brussels, Belgium
| | - Marc Vander Ghinst
- Université libre de Bruxelles (ULB), UNI - ULB Neurosciences Institute, Laboratoire de Neuroanatomie et de Neuroimagerie translationnelles (LN2T), 1070 Brussels, Belgium; Université libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, Department of Otorhinolaryngology, 1070 Brussels, Belgium
| | - Vincent Wens
- Université libre de Bruxelles (ULB), UNI - ULB Neurosciences Institute, Laboratoire de Neuroanatomie et de Neuroimagerie translationnelles (LN2T), 1070 Brussels, Belgium; Université libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, Department of translational Neuroimaging, 1070 Brussels, Belgium
| | - Serge Goldman
- Université libre de Bruxelles (ULB), UNI - ULB Neurosciences Institute, Laboratoire de Neuroanatomie et de Neuroimagerie translationnelles (LN2T), 1070 Brussels, Belgium; Université libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, Department of Nuclear Medicine, 1070 Brussels, Belgium
| | - Xavier De Tiège
- Université libre de Bruxelles (ULB), UNI - ULB Neurosciences Institute, Laboratoire de Neuroanatomie et de Neuroimagerie translationnelles (LN2T), 1070 Brussels, Belgium; Université libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, Department of translational Neuroimaging, 1070 Brussels, Belgium
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6
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Stegmann Y, Andreatta M, Pauli P, Keil A, Wieser MJ. Investigating sustained attention in contextual threat using steady‐state
VEPs
evoked by flickering video stimuli. Psychophysiology 2022; 60:e14229. [PMID: 36416714 DOI: 10.1111/psyp.14229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/17/2022] [Accepted: 11/09/2022] [Indexed: 11/24/2022]
Abstract
Anxiety is characterized by anxious anticipation and heightened vigilance to uncertain threat. However, if threat is not reliably indicated by a specific cue, the context in which threat was previously experienced becomes its best predictor, leading to anxiety. A suitable means to induce anxiety experimentally is context conditioning: In one context (CTX+), an unpredictable aversive stimulus (US) is repeatedly presented, in contrast to a second context (CTX-), in which no US is ever presented. In this EEG study, we investigated attentional mechanisms during acquisition and extinction learning in 38 participants, who underwent a context conditioning protocol. Flickering video stimuli (32 s clips depicting virtual offices representing CTX+/-) were used to evoke steady-state visual evoked potentials (ssVEPs) as an index of visuocortical engagement with the contexts. Analyses of the electrocortical responses suggest a successful induction of the ssVEP signal by video presentation in flicker mode. Furthermore, we found clear indices of context conditioning and extinction learning on a subjective level, while cortical processing of the CTX+ was unexpectedly reduced during video presentation. The differences between CTX+ and CTX- diminished during extinction learning. Together, these results indicate that the dynamic sensory input of the video presentation leads to disruptions in the ssVEP signal, which is greater for motivationally significant, threatening contexts.
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Affiliation(s)
- Yannik Stegmann
- Department of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy) University of Würzburg Würzburg Germany
| | - Marta Andreatta
- Department of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy) University of Würzburg Würzburg Germany
- Department of Psychology, Education, and Child Studies Erasmus University Rotterdam Rotterdam Netherlands
| | - Paul Pauli
- Department of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy) University of Würzburg Würzburg Germany
- Center for Mental Health, Medical Faculty University of Würzburg Würzburg Germany
| | - Andreas Keil
- Center for the Study of Emotion and Attention University of Florida Gainesville Florida USA
| | - Matthias J. Wieser
- Department of Psychology, Education, and Child Studies Erasmus University Rotterdam Rotterdam Netherlands
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7
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Peykarjou S. Frequency tagging with infants: The visual oddball paradigm. Front Psychol 2022; 13:1015611. [PMID: 36425830 PMCID: PMC9679632 DOI: 10.3389/fpsyg.2022.1015611] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 10/18/2022] [Indexed: 10/04/2023] Open
Abstract
Combining frequency tagging with electroencephalography (EEG) provides excellent opportunities for developmental research and is increasingly employed as a powerful tool in cognitive neuroscience within the last decade. In particular, the visual oddball paradigm has been employed to elucidate face and object categorization and intermodal influences on visual perception. Still, EEG research with infants poses special challenges that require consideration and adaptations of analyses. These challenges include limits to attentional capacity, variation in looking times, and presence of artefacts in the EEG signal. Moreover, potential differences between age-groups must be carefully evaluated. This manuscript evaluates challenges theoretically and empirically by (1) a systematic review of frequency tagging studies employing the oddball paradigm and (2) combining and re-analyzing data from seven-month-old infants (N = 124, 59 females) collected in a categorization task with artifical, unfamiliar stimuli. Specifically, different criteria for sequence retention and selection of harmonics, the influence of bins considered for baseline correction and the relation between fast periodic visual stimulation (FPVS) responses and looking time are analyzed. Overall, evidence indicates that analysis decisions should be tailored based on age-group to optimally capture the observed signal. Recommendations for infant frequency tagging studies are developed to aid researchers in selecting appropriate stimulation and analysis strategies in future work.
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8
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Peykarjou S, Langeloh M, Baccolo E, Rossion B, Pauen S. Superior neural individuation of mother's than stranger's faces by five months of age. Cortex 2022; 155:264-276. [PMID: 36044787 DOI: 10.1016/j.cortex.2022.07.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 12/22/2021] [Accepted: 07/07/2022] [Indexed: 01/23/2023]
Abstract
Human adults are better at recognizing different views of a given face as belonging to the same person when that person is familiar rather than unfamiliar. To clarify the developmental origin of this well-established phenomenon, one group of five-month-olds (N = 22) was presented with pictures of four different unfamiliar female faces at a fixed rate (6 Hz, 166 msec stimulus onset asynchrony), interrupted every 5th stimulus (1.2 Hz) by either their mother's face (mother oddball condition) or, in different stimulation sequences, a stranger's face (stranger oddball condition). In another group of five-month-olds (N = 17), stimulation sequences were reversed such that their mothers' or a given stranger's face were repeated at 6 Hz and interrupted every 5 stimuli by pictures of different female faces (mother standard, stranger standard conditions, respectively). Twelve variable images of each identity served as stimulus material. Besides clear frequency-tagged EEG responses at the 6 Hz stimulation rate over the medial occipital region in all conditions, significant activity at 1.2 Hz and harmonics (2.4 Hz, etc.) was observed in this region, reflecting selective responses to facial identity across changes of views. This effect was strongest when the mother's face was immediately repeated at every stimulation cycle (mother standard). Overall, these observations point to an early developmental advantage of identifying a familiar face presented from different views during immediate stimulus repetition.
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Affiliation(s)
| | - Miriam Langeloh
- Department of Psychology, Heidelberg University, Heidelberg, Germany; Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Elisa Baccolo
- Università Degli Studi di Milano-Bicocca, Milan, Italy
| | - Bruno Rossion
- Université de Lorraine, CNRS, CRAN, Nancy, France; Université de Lorraine, CHRU-Nancy, Service de Neurologie, Nancy, France
| | - Sabina Pauen
- Department of Psychology, Heidelberg University, Heidelberg, Germany
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Poncet F, Leleu A, Rekow D, Damon F, Dzhelyova MP, Schaal B, Durand K, Faivre L, Rossion B, Baudouin JY. A neural marker of rapid discrimination of facial expression in 3.5- and 7-month-old infants. Front Neurosci 2022; 16:901013. [PMID: 36061610 PMCID: PMC9434348 DOI: 10.3389/fnins.2022.901013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/29/2022] [Indexed: 01/23/2023] Open
Abstract
Infants’ ability to discriminate facial expressions has been widely explored, but little is known about the rapid and automatic ability to discriminate a given expression against many others in a single experiment. Here we investigated the development of facial expression discrimination in infancy with fast periodic visual stimulation coupled with scalp electroencephalography (EEG). EEG was recorded in eighteen 3.5- and eighteen 7-month-old infants presented with a female face expressing disgust, happiness, or a neutral emotion (in different stimulation sequences) at a base stimulation frequency of 6 Hz. Pictures of the same individual expressing other emotions (either anger, disgust, fear, happiness, sadness, or neutrality, randomly and excluding the expression presented at the base frequency) were introduced every six stimuli (at 1 Hz). Frequency-domain analysis revealed an objective (i.e., at the predefined 1-Hz frequency and harmonics) expression-change brain response in both 3.5- and 7-month-olds, indicating the visual discrimination of various expressions from disgust, happiness and neutrality from these early ages. At 3.5 months, the responses to the discrimination from disgust and happiness expressions were located mainly on medial occipital sites, whereas a more lateral topography was found for the response to the discrimination from neutrality, suggesting that expression discrimination from an emotionally neutral face relies on distinct visual cues than discrimination from a disgust or happy face. Finally, expression discrimination from happiness was associated with a reduced activity over posterior areas and an additional response over central frontal scalp regions at 7 months as compared to 3.5 months. This result suggests developmental changes in the processing of happiness expressions as compared to negative/neutral ones within this age range.
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Affiliation(s)
- Fanny Poncet
- Development of Olfactory Communication and Cognition Laboratory, Centre des Sciences du Goût et de l’Alimentation, CNRS, Université Bourgogne Franche-Comté, INRAE, Institut Agro, Dijon, France
- Université Grenoble Alpes, Saint-Martin-d’Hères, France
- *Correspondence: Fanny Poncet,
| | - Arnaud Leleu
- Development of Olfactory Communication and Cognition Laboratory, Centre des Sciences du Goût et de l’Alimentation, CNRS, Université Bourgogne Franche-Comté, INRAE, Institut Agro, Dijon, France
| | - Diane Rekow
- Development of Olfactory Communication and Cognition Laboratory, Centre des Sciences du Goût et de l’Alimentation, CNRS, Université Bourgogne Franche-Comté, INRAE, Institut Agro, Dijon, France
| | - Fabrice Damon
- Development of Olfactory Communication and Cognition Laboratory, Centre des Sciences du Goût et de l’Alimentation, CNRS, Université Bourgogne Franche-Comté, INRAE, Institut Agro, Dijon, France
| | | | - Benoist Schaal
- Development of Olfactory Communication and Cognition Laboratory, Centre des Sciences du Goût et de l’Alimentation, CNRS, Université Bourgogne Franche-Comté, INRAE, Institut Agro, Dijon, France
| | - Karine Durand
- Development of Olfactory Communication and Cognition Laboratory, Centre des Sciences du Goût et de l’Alimentation, CNRS, Université Bourgogne Franche-Comté, INRAE, Institut Agro, Dijon, France
| | - Laurence Faivre
- Inserm UMR 1231 GAD, Genetics of Developmental Disorders, and Centre de Référence Maladies Rares “Anomalies du Développement et Syndromes Malformatifs,” FHU TRANSLAD, CHU Dijon and Université de Bourgogne-Franche Comté, Dijon, France
| | - Bruno Rossion
- Université de Lorraine, CNRS, CRAN–UMR 7039, Nancy, France
- Service de Neurologie, Université de Lorraine, CHRU-Nancy, Nancy, France
| | - Jean-Yves Baudouin
- Laboratoire “Développement, Individu, Processus, Handicap, Éducation”, Département Psychologie du Développement, de l’Éducation et des Vulnérabilités, Institut de Psychologie, Université de Lyon, Université Lumière Lyon 2, Bron, France
- Jean-Yves Baudouin,
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10
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Kabdebon C, Fló A, de Heering A, Aslin R. The power of rhythms: how steady-state evoked responses reveal early neurocognitive development. Neuroimage 2022; 254:119150. [PMID: 35351649 PMCID: PMC9294992 DOI: 10.1016/j.neuroimage.2022.119150] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 12/17/2022] Open
Abstract
Electroencephalography (EEG) is a non-invasive and painless recording of cerebral activity, particularly well-suited for studying young infants, allowing the inspection of cerebral responses in a constellation of different ways. Of particular interest for developmental cognitive neuroscientists is the use of rhythmic stimulation, and the analysis of steady-state evoked potentials (SS-EPs) - an approach also known as frequency tagging. In this paper we rely on the existing SS-EP early developmental literature to illustrate the important advantages of SS-EPs for studying the developing brain. We argue that (1) the technique is both objective and predictive: the response is expected at the stimulation frequency (and/or higher harmonics), (2) its high spectral specificity makes the computed responses particularly robust to artifacts, and (3) the technique allows for short and efficient recordings, compatible with infants' limited attentional spans. We additionally provide an overview of some recent inspiring use of the SS-EP technique in adult research, in order to argue that (4) the SS-EP approach can be implemented creatively to target a wide range of cognitive and neural processes. For all these reasons, we expect SS-EPs to play an increasing role in the understanding of early cognitive processes. Finally, we provide practical guidelines for implementing and analyzing SS-EP studies.
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Affiliation(s)
- Claire Kabdebon
- Laboratoire de Sciences Cognitives et Psycholinguistique, Département d'études cognitives, ENS, EHESS, CNRS, PSL University, Paris, France; Haskins Laboratories, New Haven, CT, USA.
| | - Ana Fló
- Cognitive Neuroimaging Unit, CNRS ERL 9003, INSERM U992, CEA, Université Paris-Saclay, NeuroSpin Center, Gif/Yvette, France
| | - Adélaïde de Heering
- Center for Research in Cognition & Neuroscience (CRCN), Université libre de Bruxelles (ULB), Brussels, Belgium
| | - Richard Aslin
- Haskins Laboratories, New Haven, CT, USA; Department of Psychology, Yale University, New Haven, CT, USA
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11
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Figueira JSB, Kutlu E, Scott LS, Keil A. The FreqTag toolbox: A principled approach to analyzing electrophysiological time series in frequency tagging paradigms. Dev Cogn Neurosci 2022; 54:101066. [PMID: 35184025 PMCID: PMC8861396 DOI: 10.1016/j.dcn.2022.101066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 10/13/2021] [Accepted: 01/13/2022] [Indexed: 11/25/2022] Open
Abstract
Steady-state visual evoked potential (ssVEP) frequency tagging is an increasingly used method in electrophysiological studies of visual attention and perception. Frequency tagging is suitable for studies examining a wide range of populations, including infants and children. Frequency tagging involves the presentation of different elements of a visual array at different temporal rates, thus using stimulus timing to “tag” the brain response to a given element by means of a unique time signature. Leveraging the strength of the ssVEP frequency tagging method to isolate brain responses to concurrently presented and spatially overlapping visual objects requires specific signal processing methods. Here, we introduce the FreqTag suite of functions, an open source MATLAB toolbox. The purpose of the FreqTag toolbox is three-fold. First, it will equip users with a set of transparent and reproducible analytical tools for the analysis of ssVEP data. Second, the toolbox is designed to illustrate fundamental features of frequency domain and time-frequency domain approaches. Finally, decision criteria for the application of different functions and analyses are described. To promote reproducibility, raw algorithms are provided in a modular fashion, without additional hidden functions or transformations. This approach is intended to facilitate a fundamental understanding of the transformations and algorithmic steps in FreqTag, and to allow users to visualize and test each step in the toolbox.
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12
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Rossion B, Retter TL, Liu‐Shuang J. Understanding human individuation of unfamiliar faces with oddball fast periodic visual stimulation and electroencephalography. Eur J Neurosci 2020; 52:4283-4344. [DOI: 10.1111/ejn.14865] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/19/2020] [Accepted: 05/30/2020] [Indexed: 01/08/2023]
Affiliation(s)
- Bruno Rossion
- CNRS, CRAN UMR7039 Université de Lorraine F‐54000Nancy France
- Service de Neurologie, CHRU‐Nancy Université de Lorraine F‐54000Nancy France
| | - Talia L. Retter
- Department of Behavioural and Cognitive Sciences Faculty of Language and Literature Humanities, Arts and Education University of Luxembourg Luxembourg Luxembourg
| | - Joan Liu‐Shuang
- Institute of Research in Psychological Science Institute of Neuroscience Université de Louvain Louvain‐la‐Neuve Belgium
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13
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Rekow D, Leleu A, Poncet F, Damon F, Rossion B, Durand K, Schaal B, Baudouin JY. Categorization of objects and faces in the infant brain and its sensitivity to maternal odor: further evidence for the role of intersensory congruency in perceptual development. COGNITIVE DEVELOPMENT 2020. [DOI: 10.1016/j.cogdev.2020.100930] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Stegmann Y, Ahrens L, Pauli P, Keil A, Wieser MJ. Social aversive generalization learning sharpens the tuning of visuocortical neurons to facial identity cues. eLife 2020; 9:55204. [PMID: 32515731 PMCID: PMC7311168 DOI: 10.7554/elife.55204] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 06/08/2020] [Indexed: 12/11/2022] Open
Abstract
Defensive system activation promotes heightened perception of threat signals, and excessive attention to threat signals has been discussed as a contributory factor in the etiology of anxiety disorders. However, a mechanistic account of attentional modulation during fear-relevant processes, especially during fear generalization remains elusive. To test the hypothesis that social fear generalization prompts sharpened tuning in the visuocortical representation of social threat cues, 67 healthy participants underwent differential fear conditioning, followed by a generalization test in which participants viewed faces varying in similarity with the threat-associated face. We found that generalization of social threat sharpens visuocortical tuning of social threat cues, whereas ratings of fearfulness showed generalization, linearly decreasing with decreasing similarity to the threat-associated face. Moreover, individuals who reported greater anxiety in social situations also showed heightened sharpened tuning of visuocortical neurons to facial identity cues, indicating the behavioral relevance of visuocortical tuning during generalization learning.
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Affiliation(s)
- Yannik Stegmann
- Department of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy), University of Würzburg, Würzburg, Germany
| | - Lea Ahrens
- Department of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy), University of Würzburg, Würzburg, Germany
| | - Paul Pauli
- Department of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy), University of Würzburg, Würzburg, Germany.,Center for Mental Health, Medical Faculty, University of Würzburg, Würzburg, Germany
| | - Andreas Keil
- Center for the Study of Emotion and Attention, University of Florida, Gainesville, United States
| | - Matthias J Wieser
- Department of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy), University of Würzburg, Würzburg, Germany.,Department of Psychology, Education, and Child Studies, Erasmus University Rotterdam, Rotterdam, Netherlands
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15
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Bertels J, Bourguignon M, de Heering A, Chetail F, De Tiège X, Cleeremans A, Destrebecqz A. Snakes elicit specific neural responses in the human infant brain. Sci Rep 2020; 10:7443. [PMID: 32366886 PMCID: PMC7198620 DOI: 10.1038/s41598-020-63619-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/27/2020] [Indexed: 12/17/2022] Open
Abstract
Detecting predators is essential for survival. Given that snakes are the first of primates' major predators, natural selection may have fostered efficient snake detection mechanisms to allow for optimal defensive behavior. Here, we provide electrophysiological evidence for a brain-anchored evolved predisposition to rapidly detect snakes in humans, which does not depend on previous exposure or knowledge about snakes. To do so, we recorded scalp electrical brain activity in 7- to 10-month-old infants watching sequences of flickering animal pictures. All animals were presented in their natural background. We showed that glancing at snakes generates specific neural responses in the infant brain, that are higher in amplitude than those generated by frogs or caterpillars, especially in the occipital region of the brain. The temporal dynamics of these neural responses support that infants devote increased attention to snakes than to non-snake stimuli. These results therefore demonstrate that a single fixation at snakes is sufficient to generate a prompt and large selective response in the infant brain. They argue for the existence in humans of an inborn, brain-anchored mechanism to swiftly detect snakes based on their characteristic visual features.
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Affiliation(s)
- J Bertels
- Consciousness, Cognition and Computation Group (CO3), Center for Research in Cognition and Neurosciences (CRCN), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium. .,Laboratoire de Cartographie Fonctionnelle du Cerveau (LCFC), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium.
| | - M Bourguignon
- Laboratoire de Cartographie Fonctionnelle du Cerveau (LCFC), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - A de Heering
- Consciousness, Cognition and Computation Group (CO3), Center for Research in Cognition and Neurosciences (CRCN), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - F Chetail
- Laboratoire Cognition Langage Développement (LCLD), Center for Research in Cognition and Neurosciences (CRCN), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - X De Tiège
- Laboratoire de Cartographie Fonctionnelle du Cerveau (LCFC), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - A Cleeremans
- Consciousness, Cognition and Computation Group (CO3), Center for Research in Cognition and Neurosciences (CRCN), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - A Destrebecqz
- Consciousness, Cognition and Computation Group (CO3), Center for Research in Cognition and Neurosciences (CRCN), ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
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16
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Lochy A, Schiltz C, Rossion B. The right hemispheric dominance for face perception in preschool children depends on the visual discrimination level. Dev Sci 2020; 23:e12914. [PMID: 31618490 PMCID: PMC7379294 DOI: 10.1111/desc.12914] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/31/2019] [Accepted: 10/08/2019] [Indexed: 01/08/2023]
Abstract
The developmental origin of human adults' right hemispheric dominance in response to face stimuli remains unclear, in particular because young infants' right hemispheric advantage in face-selective response is no longer present in preschool children, before written language acquisition. Here we used fast periodic visual stimulation (FPVS) with scalp electroencephalography (EEG) to test 52 preschool children (5.5 years old) at two different levels of face discrimination: discrimination of faces against objects, measuring face-selectivity, or discrimination between individual faces. While the contrast between faces and nonface objects elicits strictly bilateral occipital responses in children, strengthening previous observations, discrimination of individual faces in the same children reveals a strong right hemispheric lateralization over the occipitotemporal cortex. Picture-plane inversion of the face stimuli significantly decreases the individual discrimination response, although to a much smaller extent than in older children and adults tested with the same paradigm. However, there is only a nonsignificant trend for a decrease in right hemispheric lateralization with inversion. There is no relationship between the right hemispheric lateralization in individual face discrimination and preschool levels of readings abilities. The observed difference in the right hemispheric lateralization obtained in the same population of children with two different paradigms measuring neural responses to faces indicates that the level of visual discrimination is a key factor to consider when making inferences about the development of hemispheric lateralization of face perception in the human brain.
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Affiliation(s)
- Aliette Lochy
- Cognitive Science and Assessment InstituteEducation, Culture, Cognition, and Society Research UnitUniversity of LuxemburgEsch‐sur AlzetteLuxembourg
| | - Christine Schiltz
- Cognitive Science and Assessment InstituteEducation, Culture, Cognition, and Society Research UnitUniversity of LuxemburgEsch‐sur AlzetteLuxembourg
| | - Bruno Rossion
- IPSYUniversité Catholique de LouvainLouvain‐La‐NeuveBelgium
- CNRSCRANUniversité de LorraineNancyFrance
- CHRU‐NancyUniversité de LorraineNancyFrance
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17
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Niesen M, Vander Ghinst M, Bourguignon M, Wens V, Bertels J, Goldman S, Choufani G, Hassid S, De Tiège X. Tracking the Effects of Top-Down Attention on Word Discrimination Using Frequency-tagged Neuromagnetic Responses. J Cogn Neurosci 2020; 32:877-888. [PMID: 31933439 DOI: 10.1162/jocn_a_01522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Discrimination of words from nonspeech sounds is essential in communication. Still, how selective attention can influence this early step of speech processing remains elusive. To answer that question, brain activity was recorded with magnetoencephalography in 12 healthy adults while they listened to two sequences of auditory stimuli presented at 2.17 Hz, consisting of successions of one randomized word (tagging frequency = 0.54 Hz) and three acoustically matched nonverbal stimuli. Participants were instructed to focus their attention on the occurrence of a predefined word in the verbal attention condition and on a nonverbal stimulus in the nonverbal attention condition. Steady-state neuromagnetic responses were identified with spectral analysis at sensor and source levels. Significant sensor responses peaked at 0.54 and 2.17 Hz in both conditions. Sources at 0.54 Hz were reconstructed in supratemporal auditory cortex, left superior temporal gyrus (STG), left middle temporal gyrus, and left inferior frontal gyrus. Sources at 2.17 Hz were reconstructed in supratemporal auditory cortex and STG. Crucially, source strength in the left STG at 0.54 Hz was significantly higher in verbal attention than in nonverbal attention condition. This study demonstrates speech-sensitive responses at primary auditory and speech-related neocortical areas. Critically, it highlights that, during word discrimination, top-down attention modulates activity within the left STG. This area therefore appears to play a crucial role in selective verbal attentional processes for this early step of speech processing.
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18
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Leleu A, Rekow D, Poncet F, Schaal B, Durand K, Rossion B, Baudouin J. Maternal odor shapes rapid face categorization in the infant brain. Dev Sci 2019; 23:e12877. [DOI: 10.1111/desc.12877] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 05/07/2019] [Accepted: 06/04/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Arnaud Leleu
- Developmental Ethology and Cognitive Psychology group, Centre des Sciences du Goût et de l’Alimentation Université Bourgogne Franche‐Comté, CNRSInra, AgroSup Dijon Dijon France
| | - Diane Rekow
- Developmental Ethology and Cognitive Psychology group, Centre des Sciences du Goût et de l’Alimentation Université Bourgogne Franche‐Comté, CNRSInra, AgroSup Dijon Dijon France
| | - Fanny Poncet
- Developmental Ethology and Cognitive Psychology group, Centre des Sciences du Goût et de l’Alimentation Université Bourgogne Franche‐Comté, CNRSInra, AgroSup Dijon Dijon France
| | - Benoist Schaal
- Developmental Ethology and Cognitive Psychology group, Centre des Sciences du Goût et de l’Alimentation Université Bourgogne Franche‐Comté, CNRSInra, AgroSup Dijon Dijon France
| | - Karine Durand
- Developmental Ethology and Cognitive Psychology group, Centre des Sciences du Goût et de l’Alimentation Université Bourgogne Franche‐Comté, CNRSInra, AgroSup Dijon Dijon France
| | - Bruno Rossion
- Psychological Sciences Research Institute, Institute of Neuroscience University of Louvain Louvain‐la‐Neuve Belgium
- Université de Lorraine, CNRS, CRAN Nancy France
- Université de Lorraine, CHRU‐Nancy Nancy France
| | - Jean‐Yves Baudouin
- Developmental Ethology and Cognitive Psychology group, Centre des Sciences du Goût et de l’Alimentation Université Bourgogne Franche‐Comté, CNRSInra, AgroSup Dijon Dijon France
- Laboratoire Développement Département Psychologie du Développement, de l'Éducation et des Vulnérabilités (PsyDÉV), Institut de psychologie Université de Lyon (Lumière Lyon 2) Individu, Processus Handicap, Éducation (DIPHE) Bron cedex France
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19
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Tsurumi S, Kanazawa S, Yamaguchi MK, Kawahara JI. Rapid identification of the face in infants. J Exp Child Psychol 2019; 186:45-58. [PMID: 31195210 DOI: 10.1016/j.jecp.2019.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 05/14/2019] [Accepted: 05/15/2019] [Indexed: 10/26/2022]
Abstract
Our visual system can rapidly process stimuli relevant to our current behavioral goal within various irrelevant stimuli in natural scenes. This ability to detect and identify target stimuli during nontarget stimuli has been mainly studied in adults, so that the development of this high-level visual function has been unknown among infants, although it has been shown that 15-month-olds' temporal thresholds of face visibility are close to those of adults. However, we demonstrate here that infants younger than 15 months can identify a target face among nontarget but meaningful scene images. In the current study, we investigated infants' ability to detect and identify a face in a rapid serial visual presentation. Experiment 1 examined whether 5- to 8-month-olds could discriminate the difference in the presentation duration of visual streams (100 vs. 11 ms). Results showed that 7- and 8-month-olds successfully discriminated between the presentation durations. In Experiment 2, we examined whether 5- to 8-month-olds could detect the face presented for 100 ms and found that 7- and 8-month-olds could detect the face embedded in rapid serial visual streams. To further clarify the face processing at this age of infants, we tested whether infants could identify upright and inverted faces in rapid visual streams in Experiments 3a and 3b. The results showed that 7- and 8-month-olds identified upright faces, but not inverted faces, during the visual stream, which reflected face inversion effects. Overall, we suggest that the temporal speed of face processing at 7 and 8 months of age would be comparable to that of adults.
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Affiliation(s)
- Shuma Tsurumi
- Department of Psychology, Chuo University, Hachioji, Tokyo 192-0393, Japan; Japan Society for the Promotion of Science, Chiyoda-ku, Tokyo 102-0083, Japan.
| | - So Kanazawa
- Department of Psychology, Japan Women's University, Kawasaki, Kanagawa 214-8565, Japan
| | - Masami K Yamaguchi
- Department of Psychology, Chuo University, Hachioji, Tokyo 192-0393, Japan
| | - Jun-Ichiro Kawahara
- Department of Psychology, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
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20
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Boylan MR, Kelly MN, Thigpen NN, Keil A. Attention to a threat-related feature does not interfere with concurrent attentive feature selection. Psychophysiology 2019; 56:e13332. [PMID: 30663061 PMCID: PMC6508976 DOI: 10.1111/psyp.13332] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/13/2018] [Accepted: 12/13/2018] [Indexed: 01/22/2023]
Abstract
Visual features associated with a task and those that predict noxious events both prompt selectively heightened visuocortical responses. Conflicting views exist regarding how the competition between a task-related and a threat-related feature is resolved when they co-occur in time and space. Utilizing aversive classical Pavlovian conditioning, we investigated the visuocortical representation of two simultaneously presented, fully overlapping visual stimuli. Isoluminant red and green random dot kinematogram (RDK) stimuli were flickered at distinct tagging frequencies (8.57 Hz, 12 Hz) to elicit distinguishable steady-state visual evoked potentials (ssVEPs). Occasional coherent motion events prompted a motor response (task) or predicted a noxious noise (threat). These events occurred either in the green (task cue), the red (threat cue), or in both RDKs simultaneously. In the initial habituation phase, participants responded to coherent motion of the green RDK with a key press, but no loud noise was presented at any time. Here, selective amplification was seen for the task-relevant (green) RDK, and interference was observed when both RDKs simultaneously showed coherent motion. Upon pairing the threat cue with the noxious noise in the subsequent acquisition phase, the threat cue-evoked ssVEP (red RDK) was also amplified, but this amplification did not interact with amplification of the task cue or alter the behavioral or visuocortical interference effect observed during simultaneous coherent motion. Although competing feature conjunctions resulted in interference in the visual cortex, the acquisition of a bias toward an individual threat-related feature did not result in additional cost effects.
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Affiliation(s)
- Maeve R Boylan
- Center for the Study of Emotion & Attention, University of Florida, Gainesville, Florida
| | - Mia N Kelly
- Center for the Study of Emotion & Attention, University of Florida, Gainesville, Florida
| | - Nina N Thigpen
- Center for the Study of Emotion & Attention, University of Florida, Gainesville, Florida
| | - Andreas Keil
- Center for the Study of Emotion & Attention, University of Florida, Gainesville, Florida
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21
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Sibling experience prevents neural tuning to adult faces in 10-month-old infants. Neuropsychologia 2019; 129:72-82. [PMID: 30922829 DOI: 10.1016/j.neuropsychologia.2019.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 03/07/2019] [Accepted: 03/18/2019] [Indexed: 11/21/2022]
Abstract
Early facial experience provided by the infant's social environment is known to shape face processing abilities, which narrow during the first year of life towards adult human faces of the most frequently encountered ethnic groups. Here we explored the hypothesis that natural variability in facial input may delay neural commitment to face processing by testing the impact of early natural experience with siblings on infants' brain responses. Event-Related Potentials (ERPs) evoked by upright and inverted adult and child faces were compared in two groups of 10-month-old infants with (N = 21) and without (N = 22) a child sibling. In first-born infants, P1 ERP component showed specificity to upright adult faces that carried over to the subsequent N290 and P400 components. In infants with siblings no inversion effects were observed. Results are discussed in the context of evidence from the language domain, showing that neural commitment to phonetic contrasts emerges later in bilinguals than in monolinguals, and that this delay facilitates subsequent learning of previously unencountered sounds of new languages.
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22
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Markant J, Scott LS. Attention and Perceptual Learning Interact in the Development of the Other-Race Effect. CURRENT DIRECTIONS IN PSYCHOLOGICAL SCIENCE 2018. [DOI: 10.1177/0963721418769884] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Face-processing abilities are biased such that some faces are differentiated, recognized, and identified more readily than others. Across the first year of life, experience with faces shapes the development of face-processing biases. However, the developmental trajectory of face processing and important contributing factors are not well understood. In order to better characterize the development of face processing during infancy, we propose a model involving repeated interactions between attention and perceptual learning. This interactive framework predicts that bottom-up attention orienting to faces leads to rapid perceptual learning about frequently experienced faces, top-down selective-attention biases for familiar faces, and increasingly refined neural representations across the first year of life.
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