Loss of peripheral vestibular input alters the statistics of head movement experienced during natural self‐motion

2021 ◽  
Author(s):  
Omid A. Zobeiri ◽  
Benjamin Ostrander ◽  
Jessica Roat ◽  
Yuri Agrawal ◽  
Kathleen E. Cullen
Keyword(s):  
Head Movement ◽  
Vestibular Input ◽  
Self Motion

scholarly journals Self-motion facilitates echo-acoustic orientation in humans

2014 ◽  
Vol 1 (3) ◽  
pp. 140185 ◽  
Author(s):  
Ludwig Wallmeier ◽  
Lutz Wiegrebe
Keyword(s):  
The Body ◽  
Whole Body ◽  
Acoustic Cues ◽  
Complex Environments ◽  
Vestibular Input ◽  
Space Technique ◽  
Acoustic Space ◽  
Body Self ◽  
Self Motion ◽  
Blind Humans

The ability of blind humans to navigate complex environments through echolocation has received rapidly increasing scientific interest. However, technical limitations have precluded a formal quantification of the interplay between echolocation and self-motion. Here, we use a novel virtual echo-acoustic space technique to formally quantify the influence of self-motion on echo-acoustic orientation. We show that both the vestibular and proprioceptive components of self-motion contribute significantly to successful echo-acoustic orientation in humans: specifically, our results show that vestibular input induced by whole-body self-motion resolves orientation-dependent biases in echo-acoustic cues. Fast head motions, relative to the body, provide additional proprioceptive cues which allow subjects to effectively assess echo-acoustic space referenced against the body orientation. These psychophysical findings clearly demonstrate that human echolocation is well suited to drive precise locomotor adjustments. Our data shed new light on the sensory–motor interactions, and on possible optimization strategies underlying echolocation in humans.

scholarly journals The statistics of the vestibular input experienced during natural self-motion differ between rodents and primates

2017 ◽  
Vol 595 (8) ◽  
pp. 2751-2766 ◽  
Author(s):  
Jérome Carriot ◽  
Mohsen Jamali ◽  
Maurice J. Chacron ◽  
Kathleen E. Cullen
Keyword(s):  
Vestibular Input ◽  
Self Motion

Dizziness

2018 ◽  
Author(s):  
Linda Luxon ◽  
Louisa Murdin
Keyword(s):  
Spatial Orientation ◽  
Head Movement ◽  
Clinical Approach ◽  
Self Motion ◽  
Normal Head

Dizziness refers to a sensation of disturbed or impaired spatial orientation without a false or distorted sense of motion. It can be distinguished from vertigo, which is the sensation of self-motion when no self-motion is occurring or the sensation of distorted self-motion during an otherwise normal head movement. However, patients using this term may be referring to many different sensations, including vertigo. This chapter describes the clinical approach to the patient with dizziness, emphasizing the importance of the history and examination.

scholarly journals Statistics of the Vestibular Input Experienced during Natural Self-Motion: Implications for Neural Processing

2014 ◽  
Vol 34 (24) ◽  
pp. 8347-8357 ◽  
Author(s):  
J. Carriot ◽  
M. Jamali ◽  
M. J. Chacron ◽  
K. E. Cullen
Keyword(s):  
Neural Processing ◽  
Vestibular Input ◽  
Self Motion

scholarly journals Effects of stereopsis on vection, presence and cybersickness in head-mounted display (HMD) virtual reality

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Wilson Luu ◽  
Barbara Zangerl ◽  
Michael Kalloniatis ◽  
Juno Kim
Keyword(s):  
Virtual Reality ◽  
Visual Perception ◽  
Head Movement ◽  
Radial Flow ◽  
Spatial Presence ◽  
Motion In Depth ◽  
Head Mounted Display ◽  
Global Stereopsis ◽  
Object Form ◽  
Self Motion

AbstractStereopsis provides critical information for the spatial visual perception of object form and motion. We used virtual reality as a tool to understand the role of global stereopsis in the visual perception of self-motion and spatial presence using virtual environments experienced through head-mounted displays (HMDs). Participants viewed radially expanding optic flow simulating different speeds of self-motion in depth, which generated the illusion of self-motion in depth (i.e., linear vection). Displays were viewed with the head either stationary (passive radial flow) or laterally swaying to the beat of a metronome (active conditions). Multisensory conflict was imposed in active conditions by presenting displays that either: (i) compensated for head movement (active compensation condition), or (ii) presented pure radial flow with no compensation during head movement (active no compensation condition). In Experiment 1, impairing stereopsis by anisometropic suppression in healthy participants generated declines in reported vection strength, spatial presence and severity of cybersickness. In Experiment 2, vection and presence ratings were compared between participants with and without clinically-defined global stereopsis. Participants without global stereopsis generated impaired vection and presence similarly to those found in Experiment 1 by subjects with induced stereopsis impairment. We find that reducing global stereopsis can have benefits of reducing cybersickness, but has adverse effects on aspects of self-motion perception in HMD VR.

Role of pinnae and head movements in localizing pure tones 1The authors would like to thank Mr. Remi Humbert for implementing the experiment in Turbo Pascal and for his further assistance.

1999 ◽  
Vol 58 (3) ◽  
pp. 170-179 ◽  
Author(s):  
Barbara S. Muller ◽  
Pierre Bovet
Keyword(s):  
Sound Source ◽  
Head Movement ◽  
Movement Analysis ◽  
Head Movements ◽  
Sound Sources ◽  
Localization Accuracy ◽  
Sound Effects ◽  
Posterior Quadrant ◽  
Localization Performance ◽  
Pure Tones

Twelve blindfolded subjects localized two different pure tones, randomly played by eight sound sources in the horizontal plane. Either subjects could get information supplied by their pinnae (external ear) and their head movements or not. We found that pinnae, as well as head movements, had a marked influence on auditory localization performance with this type of sound. Effects of pinnae and head movements seemed to be additive; the absence of one or the other factor provoked the same loss of localization accuracy and even much the same error pattern. Head movement analysis showed that subjects turn their face towards the emitting sound source, except for sources exactly in the front or exactly in the rear, which are identified by turning the head to both sides. The head movement amplitude increased smoothly as the sound source moved from the anterior to the posterior quadrant.

Color effects on self-motion perception

2006 ◽  
Author(s):  
Frederick Bonato ◽  
Andrea Bubka
Keyword(s):  
Motion Perception ◽  
Self Motion

ІНТЕРПРЕТАЦІЯ КАТЕГОРІЇ РОЗВИТКУ В СУЧАСНІЙ ПСИХОЛОГІЇ

1970 ◽  
Vol 8 (1) ◽  
pp. 22-30
Author(s):  
Анжеліка Шамне
Keyword(s):  
Cultural Context ◽  
Developmental Psychology ◽  
Structure And Dynamics ◽  
Modern Psychology ◽  
Development Site ◽  
Approaches To Study ◽  
Methodological Approaches ◽  
Self Motion

У статті розглянуто сучасні підходи до інтерпретації категорії розвитку, розкрито теоретичні  та методологічні підходи до вивчення категорії розвитку у сучасній психології, визначено її психологічний  зміст,   моделі,   структуру   та   динаміку.   Категорія   розвитку   розглядається   як   епіцентр   наукової  проблематики у психології та як поняття інтегративного типу. Розвиток проаналізовано як категорію,  явище і проблему психології розвитку в різних аспектах аналізу. Розглянуто місце розвитку в системі  споріднених психологічних понять. У статті також аналізуються психологічні аспекти теоретичних та  методологічних  постнекласичних  тенденцій  вивчення  природи,  характеру  та  визначення  психічного  розвитку. Постнекласична парадигма та плюралістична методологія пізнання визначають розмитість  дисциплінарної мови  та  врахування  ролі  соціокультурного  контексту  при  вивченні  психологічних явищ.  Важливими тенденціями сучасного теоретико-методологічного стану психологічних досліджень розвитку  також є визнання неефективності моністичного підходу до його вивчення, взаємозв'язок теоретичних ідей  та   спроби   створення   метатеоретичних   схем,   постнекласичне   розуміння   розвитку   як   принципово  незавершеного   процесу   саморуху,   актуалізація   антропологічного   діапазону   проблем   та   посилення  спрямованості на роль культурного контексту в дослідженні розвитку людини.  The article deals with the modern approaches to the interpretation of the category of development, reveals  the theoretical and methodological approaches to study of development in modern psychology, its psychological  content, patterns, structure and dynamics. Category of development is viewed as an epicenter of scientific issues in  modern  psychology  and  the  concept  of  the  integrative  type.  Category  of  development  is  considered  as  the  phenomenon  and  the  problem  of  developmental  psychology  in  various  aspects  of  the  analysis.  Analyzed  the  development site in the related psychological concepts. The article analyzes the psychological aspects of theoretical  and methodological postnonclassical contemporary trends in the study of nature, character, and determination of  mental  development.  Postnonclassical  paradigm  and  pluralistic  methodology  of  knowledge  determine  the  disciplinary blurring and increase of the role of the analysis of socio-cultural context in the study of psychological  phenomenon. The important tendencies of modern theoretical and methodological state of psychological researches  of development are facts of inefficiency of the monistic approach to its study, interconnection of theoretical ideas  and   attempts   of  creating   metatheoretical   schemes,   postnonclassical   understanding   of   development   as   a  fundamentally  uncompleted  process  of  self-motion,  actualization  of  anthropological  range  of  problems  and  strengthening of focus on the role of cultural context in research of human development.   

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