Haptics: Perception, Devices, Mobility, and Communication, 2012
The Acknowledgments section is missing from the paper starting on page 136 of this publication. T... more The Acknowledgments section is missing from the paper starting on page 136 of this publication. This should read as follows:
This preliminary report relates to deliverable 5.3 due in M18. It relates to the POP scenario, fo... more This preliminary report relates to deliverable 5.3 due in M18. It relates to the POP scenario, focused on collaborative haptic manipulation of an object by two or more partners. Until now, different pilot studies have been conducted. The first one involves two human partners manipulating a virtual mass through a virtual spring, using two Desktop PHANToM devices. The objective was
A 3D interactive data exploration system was developed to aid users segmenting the small intestin... more A 3D interactive data exploration system was developed to aid users segmenting the small intestine using haptic feedback with visual and auditory information. Several evaluations have been or are currently carried out to determine the usability of the system. In work to improve the fidelity of the haptic feedback for the small intestine segmentation system, we have arrived at two
This contribution focuses its objective in describing the design and implementation of an innovat... more This contribution focuses its objective in describing the design and implementation of an innovative system to provide cognitive rehabilitation. People who will take advantage of this platform suffer from a post-stroke disease called Apraxia and Action Disorganisation Syndrome (AADS). The platform has been integrated at Universidad Politecnica de Madrid and tries to reduce the stay in hospital or rehabilitation center by supporting self-rehabilitation at home. So, the system acts as an intelligent machine that guides patients while executing Activities of Daily Living (ADL), Journal of Accessibility and Design for All (CC) JACCES, 2014 - 4(3): 238-254. ISSN: 2013-7087 J. M. Cogollor, M. Pastorino, J. Rojo, A. Fioravanti, A. Wing, M. T. Arredondo, M. Ferre, J. Brenosa, J. Hermsdorfer, J. De Teresa, C. Walton, A. Worthington, C. Giachritsis ï‚¡ï‚¡ 239 such as preparing a simple tea, by informing them about the errors committed and possible actions to correct them. A short introduction to ...
Neurological patients with symptoms of Apraxia and Action Disorganisation Syndrome commit cogniti... more Neurological patients with symptoms of Apraxia and Action Disorganisation Syndrome commit cognitive errors during everyday goal-oriented tasks which premorbidly they used to perform automatically. CogWatch is a new cognitive rehabilitation system under development which uses instrumented objects, ambient and wearable sensors to monitor patients behavior and intervene with visual, auditory and haptic feedback to facilitate completion of Activities of Daily Living. Here, we present the CogWatch architecture and its technologies.
The ability to perspective-take (cognitive awareness of another's state) and empathise (emoti... more The ability to perspective-take (cognitive awareness of another's state) and empathise (emotional/affective response) are important characteristics for sensitive, co-operative and constructive parenting, which assists in developing adaptive functioning for children. For the first time, immersive virtual reality was used to place parents in the position of a child in order to assess impact on perspective-taking and empathy. This novel study was conducted with 20 non-high risk Spanish mothers (a pilot study with 12 mothers is reported in supplementary files). Mothers were virtually embodied as a 4-year-old child, experienced from the first-person perspective and with virtual and real body movements synchronised. They interacted with a 'mother avatar', which responded either in a Positive or Negative way. Participants reported a strong body ownership illusion for the child body that led to cognitive, emotional and physical reactions. Experiencing negative maternal behavior ...
JMIR rehabilitation and assistive technologies, Jan 26, 2018
Neurological patients after stroke usually present cognitive deficits that cause dependencies in ... more Neurological patients after stroke usually present cognitive deficits that cause dependencies in their daily living. These deficits mainly affect the performance of some of their daily activities. For that reason, stroke patients need long-term processes for their cognitive rehabilitation. Considering that classical techniques are focused on acting as guides and are dependent on help from therapists, significant efforts are being made to improve current methodologies and to use eHealth and Web-based architectures to implement information and communication technology (ICT) systems that achieve reliable, personalized, and home-based platforms to increase efficiency and level of attractiveness for patients and carers. The goal of this work was to provide an overview of the practices implemented for the assessment of stroke patients and cognitive rehabilitation. This study puts together traditional methods and the most recent personalized platforms based on ICT technologies and Internet...
As there is a continuous move towards larger and more complex surface and sub-surface railway sta... more As there is a continuous move towards larger and more complex surface and sub-surface railway station environments, the safe evacuation of increasing numbers of travellers has become a priority. The complexity of station geometries, often incorporating interconnectivity between routes, means that safe evacuation routes will become less obvious. The GETAWAY project was conceived to provide additional clarification and guidance for the evacuation of large numbers of persons within a railway station during an emergency, such as that caused by a fire. It utilises existing monitoring systems such as fire detectors and CCTV cameras, combined with specially developed decision making software and active dynamic signage systems. The objective is to assist the station management with systems to safely evacuate persons away from the incident and to a place of safety as quickly and as reliably as possible. Initial trials have already demonstrated the potential benefits of the system and further trials are planned in 2014.
Goal of the present research is the identification of possible difficulties in realizing person t... more Goal of the present research is the identification of possible difficulties in realizing person to person interaction in virtual reality. This identification took place by analysing the handshake scenario - with the idea to generalize findings to the later dancing scenario. The deliverable is subdivided into two chapters, the first produced by TUM, the second by UBRIM.
Introduction.- Part I: Psychophysical and Behavioral Basis.- Active Movement Reduces the Tactile ... more Introduction.- Part I: Psychophysical and Behavioral Basis.- Active Movement Reduces the Tactile Discrimination Performance.- Weight Perception with Real and Virtual Weights using Unimanual and Bimanual Precision Grip.- The Image of Touch: Construction of Meaning and Task Performance in Virtual Environments.- Psychological Experiments in Haptic Collaboration Research.- Human-Robot Adaptive Control of Object-oriented Action.- Cooperative Physical Human-Human and Human-Robot Interaction.- Part II: Technology and Rendering.- Data-Driven Visuo-Haptic Rendering of Deformable Bodies.- Haptic Rendering Methods for Multiple Contact Points.- Artificially Rendered Cutaneous Cues for a New Generation of Haptic Displays.- Social Haptic Interaction with Virtual Characters.- FMRI Compatible Sensing Glove for Hand Gesture Monitoring.- Improving Human-Computer Cooperation through Haptic Role Exchange and Negotiation.- Index.
Accurate weight perception is crucial for effective object manipulation in the real world. The de... more Accurate weight perception is crucial for effective object manipulation in the real world. The design of force feedback haptic interfaces for precise manipulation of virtual objects should take into account how weight simulation is implemented when manipulation involves one hand or two hands with one or two objects. The importance of this is apparent in tasks where the user requires applying vertical forces to penetrate a surface with a tool or splice a fragile object using one and/or two hands. Accurate perception of simulated weight should allow the user to execute the task with high precision. Nonetheless, most commonly used force feedback interfaces for direct manipulation of virtual object use a thimble through which the users interacts with the virtual object. While this allows use of proprio-ceptive weight information, it may reduce the cutaneous feedback that also provides weight information through pressure and skin deformation when interacting with real objects. In this chapter, we present research in unimanual and bimanual weight perception with real and virtual objects and examine the magnitude of grip forces involved and relative contribution of cutaneous and proprioceptive information to weight perception.
Previous studies have shown that lifting a weight with two hands feels lighter than lifting the s... more Previous studies have shown that lifting a weight with two hands feels lighter than lifting the same weight with one hand. One explanation for this effect could be that increasing the number of digits decreases the total grip force required to lift and hold the object therefore, resulting in a ‘lighter’ percept. Here, we carried out a pilot study on
There is evidence that weight perception with one hand may be based on integrating effort signals... more There is evidence that weight perception with one hand may be based on integrating effort signals resulting from muscular activity to support arm and weight against gravity [1]. When lifting an object with both hands, the magnitude of effort signals due to supporting the arms and weight against gravity may change in opposite ways: posture effort signals may increase due
Haptics: Perception, Devices, Mobility, and Communication, 2012
The Acknowledgments section is missing from the paper starting on page 136 of this publication. T... more The Acknowledgments section is missing from the paper starting on page 136 of this publication. This should read as follows:
This preliminary report relates to deliverable 5.3 due in M18. It relates to the POP scenario, fo... more This preliminary report relates to deliverable 5.3 due in M18. It relates to the POP scenario, focused on collaborative haptic manipulation of an object by two or more partners. Until now, different pilot studies have been conducted. The first one involves two human partners manipulating a virtual mass through a virtual spring, using two Desktop PHANToM devices. The objective was
A 3D interactive data exploration system was developed to aid users segmenting the small intestin... more A 3D interactive data exploration system was developed to aid users segmenting the small intestine using haptic feedback with visual and auditory information. Several evaluations have been or are currently carried out to determine the usability of the system. In work to improve the fidelity of the haptic feedback for the small intestine segmentation system, we have arrived at two
This contribution focuses its objective in describing the design and implementation of an innovat... more This contribution focuses its objective in describing the design and implementation of an innovative system to provide cognitive rehabilitation. People who will take advantage of this platform suffer from a post-stroke disease called Apraxia and Action Disorganisation Syndrome (AADS). The platform has been integrated at Universidad Politecnica de Madrid and tries to reduce the stay in hospital or rehabilitation center by supporting self-rehabilitation at home. So, the system acts as an intelligent machine that guides patients while executing Activities of Daily Living (ADL), Journal of Accessibility and Design for All (CC) JACCES, 2014 - 4(3): 238-254. ISSN: 2013-7087 J. M. Cogollor, M. Pastorino, J. Rojo, A. Fioravanti, A. Wing, M. T. Arredondo, M. Ferre, J. Brenosa, J. Hermsdorfer, J. De Teresa, C. Walton, A. Worthington, C. Giachritsis ï‚¡ï‚¡ 239 such as preparing a simple tea, by informing them about the errors committed and possible actions to correct them. A short introduction to ...
Neurological patients with symptoms of Apraxia and Action Disorganisation Syndrome commit cogniti... more Neurological patients with symptoms of Apraxia and Action Disorganisation Syndrome commit cognitive errors during everyday goal-oriented tasks which premorbidly they used to perform automatically. CogWatch is a new cognitive rehabilitation system under development which uses instrumented objects, ambient and wearable sensors to monitor patients behavior and intervene with visual, auditory and haptic feedback to facilitate completion of Activities of Daily Living. Here, we present the CogWatch architecture and its technologies.
The ability to perspective-take (cognitive awareness of another's state) and empathise (emoti... more The ability to perspective-take (cognitive awareness of another's state) and empathise (emotional/affective response) are important characteristics for sensitive, co-operative and constructive parenting, which assists in developing adaptive functioning for children. For the first time, immersive virtual reality was used to place parents in the position of a child in order to assess impact on perspective-taking and empathy. This novel study was conducted with 20 non-high risk Spanish mothers (a pilot study with 12 mothers is reported in supplementary files). Mothers were virtually embodied as a 4-year-old child, experienced from the first-person perspective and with virtual and real body movements synchronised. They interacted with a 'mother avatar', which responded either in a Positive or Negative way. Participants reported a strong body ownership illusion for the child body that led to cognitive, emotional and physical reactions. Experiencing negative maternal behavior ...
JMIR rehabilitation and assistive technologies, Jan 26, 2018
Neurological patients after stroke usually present cognitive deficits that cause dependencies in ... more Neurological patients after stroke usually present cognitive deficits that cause dependencies in their daily living. These deficits mainly affect the performance of some of their daily activities. For that reason, stroke patients need long-term processes for their cognitive rehabilitation. Considering that classical techniques are focused on acting as guides and are dependent on help from therapists, significant efforts are being made to improve current methodologies and to use eHealth and Web-based architectures to implement information and communication technology (ICT) systems that achieve reliable, personalized, and home-based platforms to increase efficiency and level of attractiveness for patients and carers. The goal of this work was to provide an overview of the practices implemented for the assessment of stroke patients and cognitive rehabilitation. This study puts together traditional methods and the most recent personalized platforms based on ICT technologies and Internet...
As there is a continuous move towards larger and more complex surface and sub-surface railway sta... more As there is a continuous move towards larger and more complex surface and sub-surface railway station environments, the safe evacuation of increasing numbers of travellers has become a priority. The complexity of station geometries, often incorporating interconnectivity between routes, means that safe evacuation routes will become less obvious. The GETAWAY project was conceived to provide additional clarification and guidance for the evacuation of large numbers of persons within a railway station during an emergency, such as that caused by a fire. It utilises existing monitoring systems such as fire detectors and CCTV cameras, combined with specially developed decision making software and active dynamic signage systems. The objective is to assist the station management with systems to safely evacuate persons away from the incident and to a place of safety as quickly and as reliably as possible. Initial trials have already demonstrated the potential benefits of the system and further trials are planned in 2014.
Goal of the present research is the identification of possible difficulties in realizing person t... more Goal of the present research is the identification of possible difficulties in realizing person to person interaction in virtual reality. This identification took place by analysing the handshake scenario - with the idea to generalize findings to the later dancing scenario. The deliverable is subdivided into two chapters, the first produced by TUM, the second by UBRIM.
Introduction.- Part I: Psychophysical and Behavioral Basis.- Active Movement Reduces the Tactile ... more Introduction.- Part I: Psychophysical and Behavioral Basis.- Active Movement Reduces the Tactile Discrimination Performance.- Weight Perception with Real and Virtual Weights using Unimanual and Bimanual Precision Grip.- The Image of Touch: Construction of Meaning and Task Performance in Virtual Environments.- Psychological Experiments in Haptic Collaboration Research.- Human-Robot Adaptive Control of Object-oriented Action.- Cooperative Physical Human-Human and Human-Robot Interaction.- Part II: Technology and Rendering.- Data-Driven Visuo-Haptic Rendering of Deformable Bodies.- Haptic Rendering Methods for Multiple Contact Points.- Artificially Rendered Cutaneous Cues for a New Generation of Haptic Displays.- Social Haptic Interaction with Virtual Characters.- FMRI Compatible Sensing Glove for Hand Gesture Monitoring.- Improving Human-Computer Cooperation through Haptic Role Exchange and Negotiation.- Index.
Accurate weight perception is crucial for effective object manipulation in the real world. The de... more Accurate weight perception is crucial for effective object manipulation in the real world. The design of force feedback haptic interfaces for precise manipulation of virtual objects should take into account how weight simulation is implemented when manipulation involves one hand or two hands with one or two objects. The importance of this is apparent in tasks where the user requires applying vertical forces to penetrate a surface with a tool or splice a fragile object using one and/or two hands. Accurate perception of simulated weight should allow the user to execute the task with high precision. Nonetheless, most commonly used force feedback interfaces for direct manipulation of virtual object use a thimble through which the users interacts with the virtual object. While this allows use of proprio-ceptive weight information, it may reduce the cutaneous feedback that also provides weight information through pressure and skin deformation when interacting with real objects. In this chapter, we present research in unimanual and bimanual weight perception with real and virtual objects and examine the magnitude of grip forces involved and relative contribution of cutaneous and proprioceptive information to weight perception.
Previous studies have shown that lifting a weight with two hands feels lighter than lifting the s... more Previous studies have shown that lifting a weight with two hands feels lighter than lifting the same weight with one hand. One explanation for this effect could be that increasing the number of digits decreases the total grip force required to lift and hold the object therefore, resulting in a ‘lighter’ percept. Here, we carried out a pilot study on
There is evidence that weight perception with one hand may be based on integrating effort signals... more There is evidence that weight perception with one hand may be based on integrating effort signals resulting from muscular activity to support arm and weight against gravity [1]. When lifting an object with both hands, the magnitude of effort signals due to supporting the arms and weight against gravity may change in opposite ways: posture effort signals may increase due
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