Shlomit Ben Ami - Academia.edu (original) (raw)
Papers by Shlomit Ben Ami
Thrombosis Research, 2010
To determine if adverse pregnancy outcomes are associated with atherothrombotic occlusive vascula... more To determine if adverse pregnancy outcomes are associated with atherothrombotic occlusive vascular disease (AOVD) in premenopausal women. Design: Retrospective matched case-control study. Setting: Tertiary, university-affiliated medical center. Population: Women aged less than 50 years treated for an AOVD (primary cerebrovascular, myocardial, or peripheral arterial ischemic event) from 1995 to 2004. Method: The files were reviewed for classical risk factors for AOVD and complications of pregnancy (abortions, pregnancy-induced hypertension, preeclampsia, gestational diabetes, intrauterine growth restriction (IUGR), fetal loss and preterm delivery). Findings were compared with healthy women matched for age and body mass index. Main outcome measures: Past pregnancy complications in premenopausal women with AOVD. Results: Of the 101 women with AOVD, 53 had a myocardial ischemic event, 33 a cerebrovascular event, and 15 a peripheral ischemic arterial event. On multivariate analysis, IUGR (OR 8.41, 95% CI 2.36-29.9, p = 0.001) and more than one pregnancy complication (OR 13.7, 95% CI 1.56-120, p = 0.02) were found to be independent significant variables associated with AOVD. Conclusion: IUGR and composite pregnancy complications are independent significant variables associated with AOVD in premenopausal period. Pregnancy outcome might serve as a means to identify patients who may require increased medical surveillance and preventive measures for later vascular disease.
In referential communication, gaze is often interpreted as a social cue that facilitates comprehe... more In referential communication, gaze is often interpreted as a social cue that facilitates comprehension and enables word learning. Here we investigated the degree to which head turning facilitates gaze following. We presented participants with static pictures of a man looking at a target object in a first and third block of trials, while they saw short videos of the same man turning towards the target in the second block. In Experiment 1, newly sighted individuals (recently treated for congenital cataracts) benefited from the motion cues, both when comparing their initial performance with static gaze cues to their performance with head turning, and their performance with static cues before and after the videos. In Experiment 2, neurotypical school children (ages 5-10 years) and adults also revealed improved performance with motion cues, although most participants had started to follow the static gaze cues by the end of the first block. Our results confirm that head turning is an effective social cue when interpreting new words, offering new insights for a pathways approach to development.
American Journal of Obstetrics and Gynecology, 2007
THROMBOTIC OCCLUSIVE VASCULAR EVENTS IN PREMENOPAUSAL WOMEN? GALIA ORON, YARIV YOGEV, SHLOMIT BEN... more THROMBOTIC OCCLUSIVE VASCULAR EVENTS IN PREMENOPAUSAL WOMEN? GALIA ORON, YARIV YOGEV, SHLOMIT BEN-AMI, AVI BEN-HAROUSH, MOSHE HOD, JACOB BAR, Helen Schneider Hospital for Women, Rabin Medical Center, Petah Tiqwa, and Sackler Faculty of Medicine, Tel Aviv University, Obstetrics and Gynecology, Tel Aviv, Israel OBJECTIVE: Scarcity of data exists concerning the potential association between pregnancy complications as early risk factor for atherothrombotic event. The aim of this study was to determine if adverse pregnancy outcomes can be added to the list of classical risk factors for atherothrombotic occlusive vascular disease (AOVD), in young women. STUDY DESIGN: A retrospective questionnaire/case-control study. Study group included women aged 50 years with an ICD-9 diagnosis of AOVD (a documented primary cerebrovascular, myocardial, or peripheral arterial ischemic events) who were treated between 1995 to 2004. Classical risk factors for AOVD and aspects of pregnancy outcome were compared with healthy women matched individually for age, parity and body mass index. RESULTS: 1. Overall, 101 women with AOVD were identified, of them; 53 had a myocardial ischemic event, 33 a cerebrovascular event, and 15 a peripheral ischemic arterial event. 2. On multivariate analysis, in addition to the known risk factors for AOVD (diabetes, hypertension, dyslipidemia and family history of vascular disease) intrauterine growth restriction was found to be an independent risk factor for development of AOVD (O.R 8.41, 95% C.I 2.36-29.9, p 0.001). 3. Women with more than one of the following pregnancy complication (GDM, PET, spontaneous preterm delivery, placental abruption, or fetal loss) were at increased risk for more than one arterial occlusive event (O.R 13.71, 95% C.I 1.56-120.39, p 0.02). CONCLUSION: Intrauterine growth restriction and multiple pregnancy complications are independent, early risk factor for subsequent AOVD in pre-menopausal women
In referential communication, gaze is often interpreted as a social cue that facilitates comprehe... more In referential communication, gaze is often interpreted as a social cue that facilitates comprehension and enables word learning. Here we investigated the degree to which head turning facilitates gaze following. We presented participants with static pictures of a man looking at a target object in a first and third block of trials, while they saw short videos of the same man turning towards the target in the second block. In Experiment 1, newly sighted individuals (recently treated for congenital cataracts) benefited from the motion cues, both when comparing their initial performance with static gaze cues to their performance with head turning, and their performance with static cues before and after the videos. In Experiment 2, neurotypical school children (ages 5-10 years) and adults also revealed improved performance with motion cues, although most participants had started to follow the static gaze cues by the end of the first block. Our results confirm that head turning is an effective social cue when interpreting new words, offering new insights for a pathways approach to development.
Deep Convolutional Neural Networks (DCNNs) have demonstrated impressive robustness to recognize o... more Deep Convolutional Neural Networks (DCNNs) have demonstrated impressive robustness to recognize objects under transformations (e.g. blur or noise) when these transformations are included in the training set. A hypothesis to explain such robustness is that DCNNs develop invariant neural representations that remain unaltered when the image is transformed. Yet, to what extent this hypothesis holds true is an outstanding question, as including transformations in the training set could lead to properties different from invariance, e.g. parts of the network could be specialized to recognize either transformed or non-transformed images. In this paper, we analyze the conditions under which invariance emerges. To do so, we leverage that invariant representations facilitate robustness to transformations for object categories that are not seen transformed during training. Our results with state-of-the-art DCNNs indicate that invariant representations strengthen as the number of transformed cat...
THROMBOTIC OCCLUSIVE VASCULAR EVENTS IN PREMENOPAUSAL WOMEN? GALIA ORON, YARIV YOGEV, SHLOMIT BEN... more THROMBOTIC OCCLUSIVE VASCULAR EVENTS IN PREMENOPAUSAL WOMEN? GALIA ORON, YARIV YOGEV, SHLOMIT BEN-AMI, AVI BEN-HAROUSH, MOSHE HOD, JACOB BAR, Helen Schneider Hospital for Women, Rabin Medical Center, Petah Tiqwa, and Sackler Faculty of Medicine, Tel Aviv University, Obstetrics and Gynecology, Tel Aviv, Israel OBJECTIVE: Scarcity of data exists concerning the potential association between pregnancy complications as early risk factor for atherothrombotic event. The aim of this study was to determine if adverse pregnancy outcomes can be added to the list of classical risk factors for atherothrombotic occlusive vascular disease (AOVD), in young women. STUDY DESIGN: A retrospective questionnaire/case-control study. Study group included women aged 50 years with an ICD-9 diagnosis of AOVD (a documented primary cerebrovascular, myocardial, or peripheral arterial ischemic events) who were treated between 1995 to 2004. Classical risk factors for AOVD and aspects of pregnancy outcome were compared with healthy women matched individually for age, parity and body mass index. RESULTS: 1. Overall, 101 women with AOVD were identified, of them; 53 had a myocardial ischemic event, 33 a cerebrovascular event, and 15 a peripheral ischemic arterial event. 2. On multivariate analysis, in addition to the known risk factors for AOVD (diabetes, hypertension, dyslipidemia and family history of vascular disease) intrauterine growth restriction was found to be an independent risk factor for development of AOVD (O.R 8.41, 95% C.I 2.36-29.9, p 0.001). 3. Women with more than one of the following pregnancy complication (GDM, PET, spontaneous preterm delivery, placental abruption, or fetal loss) were at increased risk for more than one arterial occlusive event (O.R 13.71, 95% C.I 1.56-120.39, p 0.02). CONCLUSION: Intrauterine growth restriction and multiple pregnancy complications are independent, early risk factor for subsequent AOVD in pre-menopausal women
Journal of Vision, Sep 6, 2019
Scientific Reports, 2021
Towards the larger goal of understanding factors relevant for improving visuo-motor control, we i... more Towards the larger goal of understanding factors relevant for improving visuo-motor control, we investigated the role of visual feedback for modulating the effectiveness of a simple hand-eye training protocol. The regimen comprised a series of curve tracing tasks undertaken over a period of one week by neurologically healthy individuals with their non-dominant hands. Our three subject groups differed in the training they experienced: those who received ‘Persistent’ visual-feedback by seeing their hand and trace evolve in real-time superimposed upon the reference patterns, those who received ‘Non-Persistent’ visual-feedback seeing their hand movement but not the emerging trace, and a ‘Control’ group that underwent no training. Improvements in performance were evaluated along two dimensions—accuracy and steadiness, to assess visuo-motor and motor skills, respectively. We found that persistent feedback leads to a significantly greater improvement in accuracy than non-persistent feedbac...
Journal of Vision, Sep 6, 2019
Scientific Reports, 2021
Towards the larger goal of understanding factors relevant for improving visuo-motor control, we i... more Towards the larger goal of understanding factors relevant for improving visuo-motor control, we investigated the role of visual feedback for modulating the effectiveness of a simple hand-eye training protocol. The regimen comprised a series of curve tracing tasks undertaken over a period of one week by neurologically healthy individuals with their non-dominant hands. Our three subject groups differed in the training they experienced: those who received ‘Persistent’ visual-feedback by seeing their hand and trace evolve in real-time superimposed upon the reference patterns, those who received ‘Non-Persistent’ visual-feedback seeing their hand movement but not the emerging trace, and a ‘Control’ group that underwent no training. Improvements in performance were evaluated along two dimensions—accuracy and steadiness, to assess visuo-motor and motor skills, respectively. We found that persistent feedback leads to a significantly greater improvement in accuracy than non-persistent feedbac...
Deep Convolutional Neural Networks (DCNNs) have demonstrated impressive robustness to recognize o... more Deep Convolutional Neural Networks (DCNNs) have demonstrated impressive robustness to recognize objects under transformations (e.g. blur or noise) when these transformations are included in the training set. A hypothesis to explain such robustness is that DCNNs develop invariant neural representations that remain unaltered when the image is transformed. Yet, to what extent this hypothesis holds true is an outstanding question, as including transformations in the training set could lead to properties different from invariance, e.g. parts of the network could be specialized to recognize either transformed or non-transformed images. In this paper, we analyze the conditions under which invariance emerges. To do so, we leverage that invariant representations facilitate robustness to transformations for object categories that are not seen transformed during training. Our results with state-of-the-art DCNNs indicate that invariant representations strengthen as the number of transformed cat...
Thrombosis Research, 2010
To determine if adverse pregnancy outcomes are associated with atherothrombotic occlusive vascula... more To determine if adverse pregnancy outcomes are associated with atherothrombotic occlusive vascular disease (AOVD) in premenopausal women. Design: Retrospective matched case-control study. Setting: Tertiary, university-affiliated medical center. Population: Women aged less than 50 years treated for an AOVD (primary cerebrovascular, myocardial, or peripheral arterial ischemic event) from 1995 to 2004. Method: The files were reviewed for classical risk factors for AOVD and complications of pregnancy (abortions, pregnancy-induced hypertension, preeclampsia, gestational diabetes, intrauterine growth restriction (IUGR), fetal loss and preterm delivery). Findings were compared with healthy women matched for age and body mass index. Main outcome measures: Past pregnancy complications in premenopausal women with AOVD. Results: Of the 101 women with AOVD, 53 had a myocardial ischemic event, 33 a cerebrovascular event, and 15 a peripheral ischemic arterial event. On multivariate analysis, IUGR (OR 8.41, 95% CI 2.36-29.9, p = 0.001) and more than one pregnancy complication (OR 13.7, 95% CI 1.56-120, p = 0.02) were found to be independent significant variables associated with AOVD. Conclusion: IUGR and composite pregnancy complications are independent significant variables associated with AOVD in premenopausal period. Pregnancy outcome might serve as a means to identify patients who may require increased medical surveillance and preventive measures for later vascular disease.
In referential communication, gaze is often interpreted as a social cue that facilitates comprehe... more In referential communication, gaze is often interpreted as a social cue that facilitates comprehension and enables word learning. Here we investigated the degree to which head turning facilitates gaze following. We presented participants with static pictures of a man looking at a target object in a first and third block of trials, while they saw short videos of the same man turning towards the target in the second block. In Experiment 1, newly sighted individuals (recently treated for congenital cataracts) benefited from the motion cues, both when comparing their initial performance with static gaze cues to their performance with head turning, and their performance with static cues before and after the videos. In Experiment 2, neurotypical school children (ages 5-10 years) and adults also revealed improved performance with motion cues, although most participants had started to follow the static gaze cues by the end of the first block. Our results confirm that head turning is an effective social cue when interpreting new words, offering new insights for a pathways approach to development.
American Journal of Obstetrics and Gynecology, 2007
THROMBOTIC OCCLUSIVE VASCULAR EVENTS IN PREMENOPAUSAL WOMEN? GALIA ORON, YARIV YOGEV, SHLOMIT BEN... more THROMBOTIC OCCLUSIVE VASCULAR EVENTS IN PREMENOPAUSAL WOMEN? GALIA ORON, YARIV YOGEV, SHLOMIT BEN-AMI, AVI BEN-HAROUSH, MOSHE HOD, JACOB BAR, Helen Schneider Hospital for Women, Rabin Medical Center, Petah Tiqwa, and Sackler Faculty of Medicine, Tel Aviv University, Obstetrics and Gynecology, Tel Aviv, Israel OBJECTIVE: Scarcity of data exists concerning the potential association between pregnancy complications as early risk factor for atherothrombotic event. The aim of this study was to determine if adverse pregnancy outcomes can be added to the list of classical risk factors for atherothrombotic occlusive vascular disease (AOVD), in young women. STUDY DESIGN: A retrospective questionnaire/case-control study. Study group included women aged 50 years with an ICD-9 diagnosis of AOVD (a documented primary cerebrovascular, myocardial, or peripheral arterial ischemic events) who were treated between 1995 to 2004. Classical risk factors for AOVD and aspects of pregnancy outcome were compared with healthy women matched individually for age, parity and body mass index. RESULTS: 1. Overall, 101 women with AOVD were identified, of them; 53 had a myocardial ischemic event, 33 a cerebrovascular event, and 15 a peripheral ischemic arterial event. 2. On multivariate analysis, in addition to the known risk factors for AOVD (diabetes, hypertension, dyslipidemia and family history of vascular disease) intrauterine growth restriction was found to be an independent risk factor for development of AOVD (O.R 8.41, 95% C.I 2.36-29.9, p 0.001). 3. Women with more than one of the following pregnancy complication (GDM, PET, spontaneous preterm delivery, placental abruption, or fetal loss) were at increased risk for more than one arterial occlusive event (O.R 13.71, 95% C.I 1.56-120.39, p 0.02). CONCLUSION: Intrauterine growth restriction and multiple pregnancy complications are independent, early risk factor for subsequent AOVD in pre-menopausal women
In referential communication, gaze is often interpreted as a social cue that facilitates comprehe... more In referential communication, gaze is often interpreted as a social cue that facilitates comprehension and enables word learning. Here we investigated the degree to which head turning facilitates gaze following. We presented participants with static pictures of a man looking at a target object in a first and third block of trials, while they saw short videos of the same man turning towards the target in the second block. In Experiment 1, newly sighted individuals (recently treated for congenital cataracts) benefited from the motion cues, both when comparing their initial performance with static gaze cues to their performance with head turning, and their performance with static cues before and after the videos. In Experiment 2, neurotypical school children (ages 5-10 years) and adults also revealed improved performance with motion cues, although most participants had started to follow the static gaze cues by the end of the first block. Our results confirm that head turning is an effective social cue when interpreting new words, offering new insights for a pathways approach to development.
Deep Convolutional Neural Networks (DCNNs) have demonstrated impressive robustness to recognize o... more Deep Convolutional Neural Networks (DCNNs) have demonstrated impressive robustness to recognize objects under transformations (e.g. blur or noise) when these transformations are included in the training set. A hypothesis to explain such robustness is that DCNNs develop invariant neural representations that remain unaltered when the image is transformed. Yet, to what extent this hypothesis holds true is an outstanding question, as including transformations in the training set could lead to properties different from invariance, e.g. parts of the network could be specialized to recognize either transformed or non-transformed images. In this paper, we analyze the conditions under which invariance emerges. To do so, we leverage that invariant representations facilitate robustness to transformations for object categories that are not seen transformed during training. Our results with state-of-the-art DCNNs indicate that invariant representations strengthen as the number of transformed cat...
THROMBOTIC OCCLUSIVE VASCULAR EVENTS IN PREMENOPAUSAL WOMEN? GALIA ORON, YARIV YOGEV, SHLOMIT BEN... more THROMBOTIC OCCLUSIVE VASCULAR EVENTS IN PREMENOPAUSAL WOMEN? GALIA ORON, YARIV YOGEV, SHLOMIT BEN-AMI, AVI BEN-HAROUSH, MOSHE HOD, JACOB BAR, Helen Schneider Hospital for Women, Rabin Medical Center, Petah Tiqwa, and Sackler Faculty of Medicine, Tel Aviv University, Obstetrics and Gynecology, Tel Aviv, Israel OBJECTIVE: Scarcity of data exists concerning the potential association between pregnancy complications as early risk factor for atherothrombotic event. The aim of this study was to determine if adverse pregnancy outcomes can be added to the list of classical risk factors for atherothrombotic occlusive vascular disease (AOVD), in young women. STUDY DESIGN: A retrospective questionnaire/case-control study. Study group included women aged 50 years with an ICD-9 diagnosis of AOVD (a documented primary cerebrovascular, myocardial, or peripheral arterial ischemic events) who were treated between 1995 to 2004. Classical risk factors for AOVD and aspects of pregnancy outcome were compared with healthy women matched individually for age, parity and body mass index. RESULTS: 1. Overall, 101 women with AOVD were identified, of them; 53 had a myocardial ischemic event, 33 a cerebrovascular event, and 15 a peripheral ischemic arterial event. 2. On multivariate analysis, in addition to the known risk factors for AOVD (diabetes, hypertension, dyslipidemia and family history of vascular disease) intrauterine growth restriction was found to be an independent risk factor for development of AOVD (O.R 8.41, 95% C.I 2.36-29.9, p 0.001). 3. Women with more than one of the following pregnancy complication (GDM, PET, spontaneous preterm delivery, placental abruption, or fetal loss) were at increased risk for more than one arterial occlusive event (O.R 13.71, 95% C.I 1.56-120.39, p 0.02). CONCLUSION: Intrauterine growth restriction and multiple pregnancy complications are independent, early risk factor for subsequent AOVD in pre-menopausal women
Journal of Vision, Sep 6, 2019
Scientific Reports, 2021
Towards the larger goal of understanding factors relevant for improving visuo-motor control, we i... more Towards the larger goal of understanding factors relevant for improving visuo-motor control, we investigated the role of visual feedback for modulating the effectiveness of a simple hand-eye training protocol. The regimen comprised a series of curve tracing tasks undertaken over a period of one week by neurologically healthy individuals with their non-dominant hands. Our three subject groups differed in the training they experienced: those who received ‘Persistent’ visual-feedback by seeing their hand and trace evolve in real-time superimposed upon the reference patterns, those who received ‘Non-Persistent’ visual-feedback seeing their hand movement but not the emerging trace, and a ‘Control’ group that underwent no training. Improvements in performance were evaluated along two dimensions—accuracy and steadiness, to assess visuo-motor and motor skills, respectively. We found that persistent feedback leads to a significantly greater improvement in accuracy than non-persistent feedbac...
Journal of Vision, Sep 6, 2019
Scientific Reports, 2021
Towards the larger goal of understanding factors relevant for improving visuo-motor control, we i... more Towards the larger goal of understanding factors relevant for improving visuo-motor control, we investigated the role of visual feedback for modulating the effectiveness of a simple hand-eye training protocol. The regimen comprised a series of curve tracing tasks undertaken over a period of one week by neurologically healthy individuals with their non-dominant hands. Our three subject groups differed in the training they experienced: those who received ‘Persistent’ visual-feedback by seeing their hand and trace evolve in real-time superimposed upon the reference patterns, those who received ‘Non-Persistent’ visual-feedback seeing their hand movement but not the emerging trace, and a ‘Control’ group that underwent no training. Improvements in performance were evaluated along two dimensions—accuracy and steadiness, to assess visuo-motor and motor skills, respectively. We found that persistent feedback leads to a significantly greater improvement in accuracy than non-persistent feedbac...
Deep Convolutional Neural Networks (DCNNs) have demonstrated impressive robustness to recognize o... more Deep Convolutional Neural Networks (DCNNs) have demonstrated impressive robustness to recognize objects under transformations (e.g. blur or noise) when these transformations are included in the training set. A hypothesis to explain such robustness is that DCNNs develop invariant neural representations that remain unaltered when the image is transformed. Yet, to what extent this hypothesis holds true is an outstanding question, as including transformations in the training set could lead to properties different from invariance, e.g. parts of the network could be specialized to recognize either transformed or non-transformed images. In this paper, we analyze the conditions under which invariance emerges. To do so, we leverage that invariant representations facilitate robustness to transformations for object categories that are not seen transformed during training. Our results with state-of-the-art DCNNs indicate that invariant representations strengthen as the number of transformed cat...