David M Jacobs
Biographic Data
| ID | 4095601 |
|---|---|
| NAME | David M Jacobs |
| GIVEN NAMES | David M |
| FAMILY NAME | Jacobs |
| SIGNATURE | JACOBS D M |
| AFFILIATIONS | Universidad Autónoma de Madrid |
| ORCID | 0000-0001-9240-7067 |
| VERIFIED | Yes |
| TOTAL WORKS | 15 |
| TOTAL CITATIONS | 5 |
| AUTHOR COUNT | 15 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1977 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 1 |
The Haptic Moving Room
In the moving room paradigm, visually perceived movements of the walls of a room affect the postural sway of individuals in the room. In this experiment, we used a virtual reality (VR) headset to provide visual information about the room, and a tactile device to provide haptic information about the front wall of the room. The tactile device consisted of 48 vibrotactile motors that were pressed against the abdomen and that provided continuous hapt…
Grasping objects with a sensory substitution glove
Socio-demographic and -economic factors associated with 30-day readmission for conditions targeted by the hospital readmissions reduction program: A population-based study
Socio-demographic and -economic factors are associated with 30-day readmission rates and should be incorporated into tools or interventions to improve discharge planning and mitigate against readmission
Anticipating the Lateral Direction of Penalty Kicks in Football From PCA-Reduced Point-Light Displays
The anticipation of the direction of football penalty kicks was assessed using Point Light Displays (PLDs). To that end, Principal Component Analyses (PCAs) were applied on previously registered penalty kicks. The PCAs provided an accurate description of the kicks: an average of 98.7% of the variance was explained with the first 6 PCA modes. The results of the PCAs were used to create 7 stimulus conditions, showing PLDs of the kicks as seen from …
On Potential-Based and Direct Movements in Information Spaces
Learning can be portrayed as a movement in a state space. Potential-based explanations of such movements hold that learners use a gradient-descent process to minimize a potential function. Direct explanations hold that learning is specific to information for learning. This study contrasts specific hypotheses derived from these general approaches. Participants estimated the length of arrow shafts of Müller-Lyer displays. Experiment 1 shows that le…
An Empirical Illustration and Formalization of the Theory of Direct Learning: The Muscle-Based Perception of Kinetic Properties
The theory of direct learning portrays learning as specificity between higher order informational quantities, referred to as information for learning, and change in performance that occurs with practice (Jacobs & Michaels, 2007 Jacobs, D. M. and Michaels, C. F. 2007. Direct learning. Ecological Psychology, 19: 321–349. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]). The focus of the theory is on the lawful generation and possib…
The Ecological Level of Analysis: Can Neogibsonian Principles be Applied Beyond Perception and Action
Direct Learning
The theory of direct perception holds that perception is specific to properties of ambient energy arrays. This article explores a similar approach to perceptual and perceptual-motor learning: Change due to learning is portrayed as specific to properties of ambient energy arrays. This type of learning is labeled direct learning. It is argued that a theory of direct learning explains a wide range of phenomena in ecologically relevant and informatio…
The Role of Concurrent Feedback in Learning to Walk Through Sliding Doors
Concurrent feedback is defined as information about performance given to participants during the execution of an action. This article investigates whether concurrent feedback is beneficial or detrimental to the learning of an ecologically relevant task. Eighteen participants were asked to walk through a virtual corridor and they practiced over 1110 trials to adjust their walking speed so as to pass through sliding doors that opened and closed at …
Mode Transition and Change in Variable Use in Perceptual Learning
proposed (a) that perceptual learning entails a transition from an inferential to a direct-perceptual mode of apprehension, and (b) that relative confidence-the difference between estimated and actual performance-indicates whether apprehension is inferential or direct. In 3 experiments participants received feedback on judgments of force; the results replicated Runeson et al.'s observed decrease in overconfidence but showed more overconfidence. R…
On the Apparent Paradox of Learning and Realism
This article first summarizes how the definition of perception as the detection of information follows from the assumption of realism (e.g., The realist position appears to be inconsistent with the empirical finding that novice perceivers often use nonspecifying variables and converge on the use of information only after practice with feedback (e.g., We argue that the appearance of inconsistency is due to the application and evaluation of realist…
Information, Perception, and Action: A Reply to Commentators
In response to Milner and Goodale's (1995) interpretations of the dorsal and ventral streams and to empirical results on punching of falling balls, Michaels (2000) argued for the acceptance of a certain separation of perception and action. Awareness of properties of the environment, which are important for telling, was tentatively separated from the visual guidance of coordinated movement. Her article was followed by a number of stimulating comme…
UFO Crash at Roswell: The Genesis of a Modern Myth
Watch the Skies! A Chronicle of the Flying Saucer Myth
Journal Article Watch the Skies! A Chronicle of the Flying Saucer Myth. By Curtis Peebles. (Washington: Smithsonian Institution Press, 1994. x, 342 pp. $24.95, ISBN 1-56098-343-4.) Get access David M. Jacobs David M. Jacobs Temple University, Philadelphia, Pennsylvania Search for other works by this author on: Oxford Academic Google Scholar Journal of American History, Volume 82, Issue 2, September 1995, Pages 781–782, https://doi.org/10.2307/208…
The UFO Controversy in America
Journal Article The UFO Controversy in America. By David Michael Jacobs. (Bloomington: Indiana University Press, 1975. xvi + 362 pp. Illustrations, notes, selected bibliography, and index. $12.50.) Get access James P. Tate James P. Tate United States Air Force Academy Search for other works by this author on: Oxford Academic Google Scholar Journal of American History, Volume 64, Issue 3, December 1977, Pages 844–845, https://doi.org/10.2307/18873…
The UFO Controversy in America
Journal Article The UFO Controversy in America. By David Michael Jacobs. (Bloomington: Indiana University Press, 1975. xvi + 362 pp. Illustrations, notes, selected bibliography, and index. $12.50.) Get access James P. Tate James P. Tate United States Air Force Academy Search for other works by this author on: Oxford Academic Google Scholar Journal of American History, Volume 64, Issue 3, December 1977, Pages 844–845, https://doi.org/10.2307/18873…
Watch the Skies! A Chronicle of the Flying Saucer Myth
Journal Article Watch the Skies! A Chronicle of the Flying Saucer Myth. By Curtis Peebles. (Washington: Smithsonian Institution Press, 1994. x, 342 pp. $24.95, ISBN 1-56098-343-4.) Get access David M. Jacobs David M. Jacobs Temple University, Philadelphia, Pennsylvania Search for other works by this author on: Oxford Academic Google Scholar Journal of American History, Volume 82, Issue 2, September 1995, Pages 781–782, https://doi.org/10.2307/208…
UFO Crash at Roswell: The Genesis of a Modern Myth
Information, Perception, and Action: A Reply to Commentators
In response to Milner and Goodale's (1995) interpretations of the dorsal and ventral streams and to empirical results on punching of falling balls, Michaels (2000) argued for the acceptance of a certain separation of perception and action. Awareness of properties of the environment, which are important for telling, was tentatively separated from the visual guidance of coordinated movement. Her article was followed by a number of stimulating comme…
On the Apparent Paradox of Learning and Realism
This article first summarizes how the definition of perception as the detection of information follows from the assumption of realism (e.g., The realist position appears to be inconsistent with the empirical finding that novice perceivers often use nonspecifying variables and converge on the use of information only after practice with feedback (e.g., We argue that the appearance of inconsistency is due to the application and evaluation of realist…
Mode Transition and Change in Variable Use in Perceptual Learning
proposed (a) that perceptual learning entails a transition from an inferential to a direct-perceptual mode of apprehension, and (b) that relative confidence-the difference between estimated and actual performance-indicates whether apprehension is inferential or direct. In 3 experiments participants received feedback on judgments of force; the results replicated Runeson et al.'s observed decrease in overconfidence but showed more overconfidence. R…
Direct Learning
The theory of direct perception holds that perception is specific to properties of ambient energy arrays. This article explores a similar approach to perceptual and perceptual-motor learning: Change due to learning is portrayed as specific to properties of ambient energy arrays. This type of learning is labeled direct learning. It is argued that a theory of direct learning explains a wide range of phenomena in ecologically relevant and informatio…
The Role of Concurrent Feedback in Learning to Walk Through Sliding Doors
Concurrent feedback is defined as information about performance given to participants during the execution of an action. This article investigates whether concurrent feedback is beneficial or detrimental to the learning of an ecologically relevant task. Eighteen participants were asked to walk through a virtual corridor and they practiced over 1110 trials to adjust their walking speed so as to pass through sliding doors that opened and closed at …
An Empirical Illustration and Formalization of the Theory of Direct Learning: The Muscle-Based Perception of Kinetic Properties
The theory of direct learning portrays learning as specificity between higher order informational quantities, referred to as information for learning, and change in performance that occurs with practice (Jacobs & Michaels, 2007 Jacobs, D. M. and Michaels, C. F. 2007. Direct learning. Ecological Psychology, 19: 321–349. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]). The focus of the theory is on the lawful generation and possib…
The Ecological Level of Analysis: Can Neogibsonian Principles be Applied Beyond Perception and Action
On Potential-Based and Direct Movements in Information Spaces
Learning can be portrayed as a movement in a state space. Potential-based explanations of such movements hold that learners use a gradient-descent process to minimize a potential function. Direct explanations hold that learning is specific to information for learning. This study contrasts specific hypotheses derived from these general approaches. Participants estimated the length of arrow shafts of Müller-Lyer displays. Experiment 1 shows that le…
Anticipating the Lateral Direction of Penalty Kicks in Football From PCA-Reduced Point-Light Displays
The anticipation of the direction of football penalty kicks was assessed using Point Light Displays (PLDs). To that end, Principal Component Analyses (PCAs) were applied on previously registered penalty kicks. The PCAs provided an accurate description of the kicks: an average of 98.7% of the variance was explained with the first 6 PCA modes. The results of the PCAs were used to create 7 stimulus conditions, showing PLDs of the kicks as seen from …
Socio-demographic and -economic factors associated with 30-day readmission for conditions targeted by the hospital readmissions reduction program: A population-based study
Socio-demographic and -economic factors are associated with 30-day readmission rates and should be incorporated into tools or interventions to improve discharge planning and mitigate against readmission
Grasping objects with a sensory substitution glove
The Haptic Moving Room
In the moving room paradigm, visually perceived movements of the walls of a room affect the postural sway of individuals in the room. In this experiment, we used a virtual reality (VR) headset to provide visual information about the room, and a tactile device to provide haptic information about the front wall of the room. The tactile device consisted of 48 vibrotactile motors that were pressed against the abdomen and that provided continuous hapt…
Computer Science (13 works) · Psychology (10 works) · Cognitive psychology (8 works) · Perception (8 works) · Artificial Intelligence (6 works) · History (4 works) · History (4 works) · Mathematics (4 works) · Neuroscience (4 works) · Physics (4 works)