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Ganea N, Addyman C, Yang J, Bremner A. Effects of multisensory stimulation on infants' learning of object pattern and trajectory. Child Dev 2024. [PMID: 39105480 DOI: 10.1111/cdev.14147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
This study investigated whether infants encode better the features of a briefly occluded object if its movements are specified simultaneously by vision and audition than if they are not (data collected: 2017-2019). Experiment 1 showed that 10-month-old infants (N = 39, 22 females, White-English) notice changes in the visual pattern on the object irrespective of the stimulation received (spatiotemporally congruent audio-visual stimulation, incongruent stimulation, or visual-only;η p 2 $$ {\eta}_{\mathrm{p}}^2 $$ = .53). Experiment 2 (N = 72, 36 female) found similar results in 6-month-olds (Test Block 1,η p 2 $$ {\eta}_{\mathrm{p}}^2 $$ = .13), but not 4-month-olds. Experiment 3 replicated this finding with another group of 6-month-olds (N = 42, 21 females) and showed that congruent stimulation enables infants to detect changes in object trajectory (d = 0.56) in addition to object pattern (d = 1.15), whereas incongruent stimulation hinders performance.
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Affiliation(s)
- Nataşa Ganea
- Department of Psychology, Goldsmiths, University of London, London, UK
| | - Caspar Addyman
- Department of Psychology, Goldsmiths, University of London, London, UK
| | - Jiale Yang
- School of Psychology, Chukyo University, Nagoya, Japan
| | - Andrew Bremner
- Centre for Developmental Science, School of Psychology, University of Birmingham, Birmingham, UK
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Fesce R. The emergence of identity, agency and consciousness from the temporal dynamics of neural elaboration. FRONTIERS IN NETWORK PHYSIOLOGY 2024; 4:1292388. [PMID: 38628469 PMCID: PMC11018992 DOI: 10.3389/fnetp.2024.1292388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 03/13/2024] [Indexed: 04/19/2024]
Abstract
Identity-differentiating self from external reality-and agency-being the author of one's acts-are generally considered intrinsic properties of awareness and looked at as mental constructs generated by consciousness. Here a different view is proposed. All physiological systems display complex time-dependent regulations to adapt or anticipate external changes. To interact with rapid changes, an animal needs a nervous system capable of modelling and predicting (not simply representing) it. Different algorithms must be employed to predict the momentary location of an object based on sensory information (received with a delay), or to design in advance and direct the trajectory of movement. Thus, the temporal dynamics of external events and action must be handled in differential ways, thereby generating the distinction between self and non-self ("identity") as an intrinsic computational construct in neuronal elaboration. Handling time is not what neurons are designed for. Neuronal circuits are based on parallel processing: each bit of information diverges on many neurons, each of which combines it with many other data. Spike firing reports the likelihood that the specific pattern the neuron is designed to respond to is present in the incoming data. This organization seems designed to process synchronous datasets. However, since neural networks can introduce delays in processing, time sequences can be transformed into simultaneous patterns and analysed as such. This way predictive algorithms can be implemented, and continually improved through neuronal plasticity. To successfully interact with the external reality, the nervous system must model and predict, but also differentially handle perceptual functions or motor activity, by putting in register information that becomes available at different time moments. Also, to learn through positive/negative reinforcement, modelling must establish a causal relation between motor control and its consequences: the contrast between phase lag in perception and phase lead (and control) in motor programming produces the emergence of identity (discerning self from surrounding) and agency (control on actions) as necessary computational constructs to model reality. This does not require any form of awareness. In a brain, capable of producing awareness, these constructs may evolve from mere computational requirements into mental (conscious) constructs.
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Affiliation(s)
- Riccardo Fesce
- Department of Biomedical Sciences, Humanitas University, Medical School, Pieve Emanuele, Italy
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An M, Marcinowski EC, Hsu LY, Stankus J, Jancart KL, Lobo MA, Dusing SC, McCoy SW, Bovaird JA, Willett S, Harbourne RT. Object Permanence and the Relationship to Sitting Development in Infants With Motor Delays. Pediatr Phys Ther 2022; 34:309-316. [PMID: 35653237 PMCID: PMC9200226 DOI: 10.1097/pep.0000000000000909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE This study examines object permanence development in infants with motor delays (MD) compared with infants with typical development (TD) and in relation to sitting skill. METHODS Fifty-six infants with MD (mean age = 10 months) and 36 with TD (mean age = 5.7 months) were assessed at baseline and then at 1.5, 3, and 6 months postbaseline. A scale was developed to measure object permanence (Object Permanence Scale [OPS]), and the Gross Motor Function Measure sitting subsection (GMFM-SS), and the Bayley Scales of Infant and Toddler Development, 3rd Edition (Bayley-III) were administered. RESULTS Interrater reliability of the OPS was excellent and correlation between the OPS and Bayley-III cognitive scores was moderately positive. Compared with TD, infants with MD were delayed in development of object permanence but demonstrated increased understanding over time and as sitting skills improved. CONCLUSION In children with MD, object permanence, as quantified by the OPS, emerges in conjunction with sitting skill.
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Affiliation(s)
- Mihee An
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
| | - Emily C. Marcinowski
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
| | - Lin-Ya Hsu
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
| | - Jaclynn Stankus
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
| | - Karl L. Jancart
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
| | - Michele A. Lobo
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
| | - Stacey C. Dusing
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
| | - Sarah W. McCoy
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
| | - James A. Bovaird
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
| | - Sandra Willett
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
| | - Regina T. Harbourne
- Kaya University, Gimhae-si, Gyeongsangnam-do, Republic of Korea (Dr An); Louisiana State University, Baton Rouge, Louisiana (Dr Marcinowski); University of Washington, Seattle, Washington (Drs Hsu and McCoy); Duquesne University, Pittsburgh, Pennsylvania (Drs Stankus and Harbourne and Mr Jancart); University of Delaware, Newark, Delaware (Dr Lobo); University of Southern California, Los Angeles, California (Dr Dusing); University of Nebraska-Lincoln, Nebraska (Dr Bovaird); University of Nebraska Medical Center, Omaha, Nebraska (Dr Willett)
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Fesce R. Subjectivity as an Emergent Property of Information Processing by Neuronal Networks. Front Neurosci 2020; 14:548071. [PMID: 33071734 PMCID: PMC7539658 DOI: 10.3389/fnins.2020.548071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 08/27/2020] [Indexed: 11/23/2022] Open
Abstract
Here, we examine subjectivity and consciousness as emergent properties of the computational complexity of information processing by the brain, rather than metaphysical phenomena. While Psychology concentrates on the emergent properties and Neurobiology examines the properties of the biological substrate, Neurophysiology and Cognitive Neuroscience link the two levels by investigating the mechanisms and processes by which the functions of the brain emerge from the anatomical, cellular and network properties of the nervous system. Our purpose here is not to locate the neural structures that sustain subjectivity or other psychic functions; rather, we examine the operating modes of neurons and neural circuits: they reveal an intrinsically relational quality; sensory elaboration itself proves to be relational and self-centred, necessarily associated with the vital, hedonic, emotional relevance of each experience and external cue, and intrinsically oriented to a behavioral interaction with the latter. The hippocampus adds to this self-centred relational perspective the capability of transforming the identification and the spatial location of objects into a contextualized representation of reality. Since the hippocampus is strongly interconnected with the archaic structures that evaluate vital and hedonic relevance and generate emotional responses, the contextualized information, emotionally colored, is transformed into a comprehensive individual experience. This way, a subjective, self-centred, affectively colored perspective arises in animals due to the intrinsic properties of neuronal circuits in the brain. We conclude that neuronal network processing is strongly characterized per se by a relational and self-centred (subjective) and emotionally colored, motivationally oriented (personal) perspective. The properties and features of neural processing discussed here constitute well-established knowledge in the neuroscientific community. Yet, from a layman’s perception, subjectivity still mysteriously arises in our brain due to the action of consciousness, and in epistemological and philosophical debates, the question often arises as to how consciousness may add the subjective and personal perspective to neural elaboration. The answer appears to be simple: it does not; subjectivity is already there, present ab initio in neuronal processing and not added a posteriori by some other “consciousness” function of unclear neural basis.
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Affiliation(s)
- Riccardo Fesce
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
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Shinskey JL. Sound effects: Multimodal input helps infants find displaced objects. BRITISH JOURNAL OF DEVELOPMENTAL PSYCHOLOGY 2016; 35:317-333. [PMID: 27868211 DOI: 10.1111/bjdp.12165] [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: 02/03/2016] [Revised: 08/17/2016] [Indexed: 11/28/2022]
Abstract
Before 9 months, infants use sound to retrieve a stationary object hidden by darkness but not one hidden by occlusion, suggesting auditory input is more salient in the absence of visual input. This article addresses how audiovisual input affects 10-month-olds' search for displaced objects. In AB tasks, infants who previously retrieved an object at A subsequently fail to find it after it is displaced to B, especially following a delay between hiding and retrieval. Experiment 1 manipulated auditory input by keeping the hidden object audible versus silent, and visual input by presenting the delay in the light versus dark. Infants succeeded more at B with audible than silent objects and, unexpectedly, more after delays in the light than dark. Experiment 2 presented both the delay and search phases in darkness. The unexpected light-dark difference disappeared. Across experiments, the presence of auditory input helped infants find displaced objects, whereas the absence of visual input did not. Sound might help by strengthening object representation, reducing memory load, or focusing attention. This work provides new evidence on when bimodal input aids object processing, corroborates claims that audiovisual processing improves over the first year of life, and contributes to multisensory approaches to studying cognition. Statement of contribution What is already known on this subject Before 9 months, infants use sound to retrieve a stationary object hidden by darkness but not one hidden by occlusion. This suggests they find auditory input more salient in the absence of visual input in simple search tasks. After 9 months, infants' object processing appears more sensitive to multimodal (e.g., audiovisual) input. What does this study add? This study tested how audiovisual input affects 10-month-olds' search for an object displaced in an AB task. Sound helped infants find displaced objects in both the presence and absence of visual input. Object processing becomes more sensitive to bimodal input as multisensory functions develop across the first year.
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Affiliation(s)
- Jeanne L Shinskey
- Royal Holloway, University of London, UK.,University of South Carolina, Columbia, South Carolina, USA
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