Leslie B Cohen
Dados Biográficos
| ID | 1463387 |
|---|---|
| NOME | Leslie B Cohen |
| PRENOMES | Leslie B |
| SOBRENOME | Cohen |
| ASSINATURA | COHEN L B |
| AFILIAÇÕES | The University of Texas at Austin |
| ORCID | 0000-0002-4801-7747 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 18 |
| TOTAL DE CITAÇÕES | 74 |
| TOTAL COMO AUTOR | 18 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1971 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2009 |
| ÍNDICE H | 5 |
The Evolution of Infant Cognition
With the surges in international trade, the threat of invasive wood-boring longhorned beetles continues to increase. These beetles could potentially cause damage worth hundreds of millions of dollars as has been demonstrated by the Asian longhorned beetle. While we cannot conduct realistic invasion experiments, we can study the behavioral traits of the native longhorned beetles. The longhorned beetles are a good study group of potential invaders …
Modeling Age Differences in Infant Category Learning
We used an encoder version of cascade correlation to simulate Younger and Cohen's (1983, 1986) finding that 10‐month‐olds recover attention on the basis of correlations among stimulus features, but 4‐ and 7‐month‐olds recover attention on the basis of stimulus features. We captured these effects by varying the score threshold parameter in cascade correlation, which controls how deeply training patterns are learned. When networks learned deeply, t…
Modeling the Development of Infant Categorization
Research on infant categorization has made remarkable progress since the first studies were reported in the late 1970s (e.g., Cohen & Caputo, 1978; Cohen & Strauss, 1977; Strauss, 1979). This progress is evident in a recent volume on early categorization and concept acquisition (Rakison & Oakes, 2003), the first half of which is devoted entirely to theory and research on infant categorization. Even in the early days of such research an important …
Young Infants' Perception of Object Unity in Rotation Displays
Much research has been devoted to questions regarding how infants begin to perceive the unity of partly occluded objects, and it is clear that object motion plays a central role. Little is known, however, about how infants' motion processing skills are used in such tasks. One important kinetic cue for object shape is structure from motion, but its role in unity perception remains unknown. To address this issue, we presented 2‐ and 4‐month‐old inf…
Reply to Baillargeon, Aslin, and Munakata
Eight‐Month‐Old Infants' Perception of Possible and Impossible Events
This study investigated 8‐month‐old infants' perception of object permanence in an extension of the rotating screen studies by Baillargeon (1987) and Baillargeon, Spelke, and Wasserman (1985). Using computer‐animated stimuli similar to the “live” stimuli used by Baillargeon and her colleagues (Baillargeon, 1987; Baillargeon et al., 1985), 48 8‐month‐old infants were habituated to 1 of 4 computer‐animated events and then tested on all 4 events. Th…
Infants' association of linguistic labels with causal actions
Six experiments examined infants' ability to associate nonsense words with 2 causal actions: pushing and pulling. Although Experiment 1 found that 14-month-olds failed to form word-action associations, 18-month-olds in Experiment 2 provided reliable evidence of doing so. Additional experiments explored why 14-month-olds may not have formed such an association. Experiment 3 examined 14-month-olds' ability to discriminate a change in either the act…
Acquisition of word–object associations by 14-month-old infants
The role of object parts in infants' attention to form^function correlations
The role of object parts in infants' attention to form-function correlations
Three studies explored the nature of form-function relationships recognized by infants. In Study 1, 14- and 18-month-old infants were habituated to videotaped displays of objects in which 2 form-function correlations were embodied within different parts of objects. Infants were tested on objects in which these familiar correlations either were maintained or were violated. Infants at both ages noticed the violations, indicating recognition of the …
How infants perceive a simple causal event
Four experiments examined 10-month-old infants'causal event perception. Experiment 1 replicated previous studies except that the specific objects used as agent and recipient varied from trial to trial. Under these conditions infants did not process the causality. Instead they keyed on specific temporal and spatial differences among the events. Experiment 2 showed that infants notice a change in the particular agent performing either a causal or n…
Infant perception of /aba/ versus /apa
Two experiments using a visual habituation paradigm examined 71/2 month-old infants' categorical discrimination of the medial stop consonants /aba/ and /apa/. Infants received digitized natural speech tokens differing in the duration of consonantal closure and in the presence or absence of vocal-fold pulsing. The results provided clear evidence of infant categorical discrimination based solely on closure duration. Infants also shifted their bound…
Effects of syllable duration on the perception of the Mandarin Tone 2/Tone 3 distinction
Cross‐moderation
Over the last decade inter‐board grade comparability investigation has relied exclusively on the cross‐moderation method, but the results have continued to prove disappointing. Pronouncements about differences in the grading standards of the participating boards have usually been heavily qualified and of uncertain validity. It has not been clear, however, to what extent the cross‐moderation method can be held accountable for this general failure …
The Generalizability of Cross‐Moderation
In response to increased public interest in the question of the comparability of the various examining boards' grading standards in the same subjects, the boards have in recent years published numerous reports on their own inter‐board comparability studies. The results of these studies have, in general, been disappointing in terms of the tentativeness of their conclusions about relative standards. This paper discusses the problems involved in att…
Our developing knowledge of infant perception and cognition
Our developing knowledge of infant perception and cognition
Novelty, familiarity, and the development of infant attention
Effects of syllable duration on the perception of the Mandarin Tone 2/Tone 3 distinction
Acquisition of word–object associations by 14-month-old infants
The role of object parts in infants' attention to form-function correlations
Three studies explored the nature of form-function relationships recognized by infants. In Study 1, 14- and 18-month-old infants were habituated to videotaped displays of objects in which 2 form-function correlations were embodied within different parts of objects. Infants were tested on objects in which these familiar correlations either were maintained or were violated. Infants at both ages noticed the violations, indicating recognition of the …
How infants perceive a simple causal event
Four experiments examined 10-month-old infants'causal event perception. Experiment 1 replicated previous studies except that the specific objects used as agent and recipient varied from trial to trial. Under these conditions infants did not process the causality. Instead they keyed on specific temporal and spatial differences among the events. Experiment 2 showed that infants notice a change in the particular agent performing either a causal or n…
Novelty, familiarity, and the development of infant attention
Infants' association of linguistic labels with causal actions
Six experiments examined infants' ability to associate nonsense words with 2 causal actions: pushing and pulling. Although Experiment 1 found that 14-month-olds failed to form word-action associations, 18-month-olds in Experiment 2 provided reliable evidence of doing so. Additional experiments explored why 14-month-olds may not have formed such an association. Experiment 3 examined 14-month-olds' ability to discriminate a change in either the act…
The role of object parts in infants' attention to form^function correlations
Infant perception of /aba/ versus /apa
Two experiments using a visual habituation paradigm examined 71/2 month-old infants' categorical discrimination of the medial stop consonants /aba/ and /apa/. Infants received digitized natural speech tokens differing in the duration of consonantal closure and in the presence or absence of vocal-fold pulsing. The results provided clear evidence of infant categorical discrimination based solely on closure duration. Infants also shifted their bound…
Cross‐moderation
Over the last decade inter‐board grade comparability investigation has relied exclusively on the cross‐moderation method, but the results have continued to prove disappointing. Pronouncements about differences in the grading standards of the participating boards have usually been heavily qualified and of uncertain validity. It has not been clear, however, to what extent the cross‐moderation method can be held accountable for this general failure …
The Generalizability of Cross‐Moderation
In response to increased public interest in the question of the comparability of the various examining boards' grading standards in the same subjects, the boards have in recent years published numerous reports on their own inter‐board comparability studies. The results of these studies have, in general, been disappointing in terms of the tentativeness of their conclusions about relative standards. This paper discusses the problems involved in att…
Novelty, familiarity, and the development of infant attention
Our developing knowledge of infant perception and cognition
Our developing knowledge of infant perception and cognition
The Generalizability of Cross‐Moderation
In response to increased public interest in the question of the comparability of the various examining boards' grading standards in the same subjects, the boards have in recent years published numerous reports on their own inter‐board comparability studies. The results of these studies have, in general, been disappointing in terms of the tentativeness of their conclusions about relative standards. This paper discusses the problems involved in att…
Cross‐moderation
Over the last decade inter‐board grade comparability investigation has relied exclusively on the cross‐moderation method, but the results have continued to prove disappointing. Pronouncements about differences in the grading standards of the participating boards have usually been heavily qualified and of uncertain validity. It has not been clear, however, to what extent the cross‐moderation method can be held accountable for this general failure …
Effects of syllable duration on the perception of the Mandarin Tone 2/Tone 3 distinction
Infant perception of /aba/ versus /apa
Two experiments using a visual habituation paradigm examined 71/2 month-old infants' categorical discrimination of the medial stop consonants /aba/ and /apa/. Infants received digitized natural speech tokens differing in the duration of consonantal closure and in the presence or absence of vocal-fold pulsing. The results provided clear evidence of infant categorical discrimination based solely on closure duration. Infants also shifted their bound…
How infants perceive a simple causal event
Four experiments examined 10-month-old infants'causal event perception. Experiment 1 replicated previous studies except that the specific objects used as agent and recipient varied from trial to trial. Under these conditions infants did not process the causality. Instead they keyed on specific temporal and spatial differences among the events. Experiment 2 showed that infants notice a change in the particular agent performing either a causal or n…
The role of object parts in infants' attention to form^function correlations
The role of object parts in infants' attention to form-function correlations
Three studies explored the nature of form-function relationships recognized by infants. In Study 1, 14- and 18-month-old infants were habituated to videotaped displays of objects in which 2 form-function correlations were embodied within different parts of objects. Infants were tested on objects in which these familiar correlations either were maintained or were violated. Infants at both ages noticed the violations, indicating recognition of the …
Acquisition of word–object associations by 14-month-old infants
Reply to Baillargeon, Aslin, and Munakata
Eight‐Month‐Old Infants' Perception of Possible and Impossible Events
This study investigated 8‐month‐old infants' perception of object permanence in an extension of the rotating screen studies by Baillargeon (1987) and Baillargeon, Spelke, and Wasserman (1985). Using computer‐animated stimuli similar to the “live” stimuli used by Baillargeon and her colleagues (Baillargeon, 1987; Baillargeon et al., 1985), 48 8‐month‐old infants were habituated to 1 of 4 computer‐animated events and then tested on all 4 events. Th…
Infants' association of linguistic labels with causal actions
Six experiments examined infants' ability to associate nonsense words with 2 causal actions: pushing and pulling. Although Experiment 1 found that 14-month-olds failed to form word-action associations, 18-month-olds in Experiment 2 provided reliable evidence of doing so. Additional experiments explored why 14-month-olds may not have formed such an association. Experiment 3 examined 14-month-olds' ability to discriminate a change in either the act…
Young Infants' Perception of Object Unity in Rotation Displays
Much research has been devoted to questions regarding how infants begin to perceive the unity of partly occluded objects, and it is clear that object motion plays a central role. Little is known, however, about how infants' motion processing skills are used in such tasks. One important kinetic cue for object shape is structure from motion, but its role in unity perception remains unknown. To address this issue, we presented 2‐ and 4‐month‐old inf…
Modeling Age Differences in Infant Category Learning
We used an encoder version of cascade correlation to simulate Younger and Cohen's (1983, 1986) finding that 10‐month‐olds recover attention on the basis of correlations among stimulus features, but 4‐ and 7‐month‐olds recover attention on the basis of stimulus features. We captured these effects by varying the score threshold parameter in cascade correlation, which controls how deeply training patterns are learned. When networks learned deeply, t…
Modeling the Development of Infant Categorization
Research on infant categorization has made remarkable progress since the first studies were reported in the late 1970s (e.g., Cohen & Caputo, 1978; Cohen & Strauss, 1977; Strauss, 1979). This progress is evident in a recent volume on early categorization and concept acquisition (Rakison & Oakes, 2003), the first half of which is devoted entirely to theory and research on infant categorization. Even in the early days of such research an important …
The Evolution of Infant Cognition
With the surges in international trade, the threat of invasive wood-boring longhorned beetles continues to increase. These beetles could potentially cause damage worth hundreds of millions of dollars as has been demonstrated by the Asian longhorned beetle. While we cannot conduct realistic invasion experiments, we can study the behavioral traits of the native longhorned beetles. The longhorned beetles are a good study group of potential invaders …
Psychology (17 obras) · Cognitive psychology (13 obras) · Developmental psychology (13 obras) · Child and Animal Learning Development (12 obras) · Neuroscience (6 obras) · Perception (6 obras) · Cognition (5 obras) · Computer Science (5 obras) · Cognitive development (4 obras) · Language Development and Disorders (4 obras)