The Experts below are selected from a list of 11844 Experts worldwide ranked by ideXlab platform
R A Colombo - One of the best experts on this subject based on the ideXlab platform.
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towards a redefinition of dissociative spectrum dimensions inside capgras and Misidentification syndromes in bipolar disorder case series and literature review
European Psychiatry, 2016Co-Authors: M Preve, P Salvatore, Marco Mula, E Favaretto, M Godio, R Traber, R A ColomboAbstract:Introduction Misidentification phenomena and Capgras Syndrome (CS) occur in different psychiatric (psychotic or major affective illnesses) and neurological (traumatic brain injury, epilepsy, neurosyphilis, etc.) disorders [1,2]. The aim of this report is to redefine dissociative spectrum dimensions inside CS and Misidentification syndromes in patients with Bipolar Disorder (BD). Method Five inpatients were assessed with the SCID-P, SCID-DER, DSS, HRSD, YMRS, a neurological and general medicine review, a first-level brain imaging examination (CT and/or MRI). We conducted a systematic literature review (PubMed, Embase, PsychInfo) using the key terms "Capgras Syndrome" and "Misidentificaition". Results All patients were diagnosed with type-I BD and had concomitant CS that presented with Misidentification phenomena in the context of psychotic mixed state. They reported high scores for autopsychic and affective depersonalization symptoms as well as high SCI-DER (mean=24.4) and DSS (mean=13) total scores. Discussion and conclusion To our knowledge in literature, there are not studies that evaluated dissociative spectrum symptoms in CS in BD. This condition of identity and self fragmentation could be the key to shedding light on the interconnection between affective and non-affective psychotic disorders from schizophrenia to BD, and may underscore the possible validity of the concept of the unitary psychosis proposed by Griesinger [3–5]. Further research is warranted to replicate our clinical and qualitative observations and, in general, quantitative studies in large samples followed up over time are needed. Methodological limitations are considered.
William T White - One of the best experts on this subject based on the ideXlab platform.
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effects of including misidentified sharks in life history analyses a case study on the grey reef shark carcharhinus amblyrhynchos from papua new guinea
PLOS ONE, 2016Co-Authors: Jonathan J Smart, Andrew Chin, Leontine Baje, M Green, Sharon A Appleyard, Andrew J Tobin, Colin A Simpfendorfer, William T WhiteAbstract:Fisheries observer programs are used around the world to collect crucial information and samples that inform fisheries management. However, observer error may misidentify similar-looking shark species. This raises questions about the level of error that species Misidentifications could introduce to estimates of species' life history parameters. This study addressed these questions using the Grey Reef Shark Carcharhinus amblyrhynchos as a case study. Observer Misidentification rates were quantified by validating species identifications using diagnostic photographs taken on board supplemented with DNA barcoding. Length-at-age and maturity ogive analyses were then estimated and compared with and without the misidentified individuals. Vertebrae were retained from a total of 155 sharks identified by observers as C. amblyrhynchos. However, 22 (14%) of these were sharks were misidentified by the observers and were subsequently re-identified based on photographs and/or DNA barcoding. Of the 22 individuals misidentified as C. amblyrhynchos, 16 (73%) were detected using photographs and a further 6 via genetic validation. If misidentified individuals had been included, substantial error would have been introduced to both the length-at-age and the maturity estimates. Thus validating the species identification, increased the accuracy of estimated life history parameters for C. amblyrhynchos. From the corrected sample a multi-model inference approach was used to estimate growth for C. amblyrhynchos using three candidate models. The model averaged length-at-age parameters for C. amblyrhynchos with the sexes combined were L∞ = 159 cm TL and L0 = 72 cm TL. Females mature at a greater length (l50 = 136 cm TL) and older age (A50 = 9.1 years) than males (l50 = 123 cm TL; A50 = 5.9 years). The inclusion of techniques to reduce Misidentification in observer programs will improve the results of life history studies and ultimately improve management through the use of more accurate data for assessments.
M Green - One of the best experts on this subject based on the ideXlab platform.
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effects of including misidentified sharks in life history analyses a case study on the grey reef shark carcharhinus amblyrhynchos from papua new guinea
PLOS ONE, 2016Co-Authors: Jonathan J Smart, Andrew Chin, Leontine Baje, M Green, Sharon A Appleyard, Andrew J Tobin, Colin A Simpfendorfer, William T WhiteAbstract:Fisheries observer programs are used around the world to collect crucial information and samples that inform fisheries management. However, observer error may misidentify similar-looking shark species. This raises questions about the level of error that species Misidentifications could introduce to estimates of species' life history parameters. This study addressed these questions using the Grey Reef Shark Carcharhinus amblyrhynchos as a case study. Observer Misidentification rates were quantified by validating species identifications using diagnostic photographs taken on board supplemented with DNA barcoding. Length-at-age and maturity ogive analyses were then estimated and compared with and without the misidentified individuals. Vertebrae were retained from a total of 155 sharks identified by observers as C. amblyrhynchos. However, 22 (14%) of these were sharks were misidentified by the observers and were subsequently re-identified based on photographs and/or DNA barcoding. Of the 22 individuals misidentified as C. amblyrhynchos, 16 (73%) were detected using photographs and a further 6 via genetic validation. If misidentified individuals had been included, substantial error would have been introduced to both the length-at-age and the maturity estimates. Thus validating the species identification, increased the accuracy of estimated life history parameters for C. amblyrhynchos. From the corrected sample a multi-model inference approach was used to estimate growth for C. amblyrhynchos using three candidate models. The model averaged length-at-age parameters for C. amblyrhynchos with the sexes combined were L∞ = 159 cm TL and L0 = 72 cm TL. Females mature at a greater length (l50 = 136 cm TL) and older age (A50 = 9.1 years) than males (l50 = 123 cm TL; A50 = 5.9 years). The inclusion of techniques to reduce Misidentification in observer programs will improve the results of life history studies and ultimately improve management through the use of more accurate data for assessments.
M Preve - One of the best experts on this subject based on the ideXlab platform.
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towards a redefinition of dissociative spectrum dimensions inside capgras and Misidentification syndromes in bipolar disorder case series and literature review
European Psychiatry, 2016Co-Authors: M Preve, P Salvatore, Marco Mula, E Favaretto, M Godio, R Traber, R A ColomboAbstract:Introduction Misidentification phenomena and Capgras Syndrome (CS) occur in different psychiatric (psychotic or major affective illnesses) and neurological (traumatic brain injury, epilepsy, neurosyphilis, etc.) disorders [1,2]. The aim of this report is to redefine dissociative spectrum dimensions inside CS and Misidentification syndromes in patients with Bipolar Disorder (BD). Method Five inpatients were assessed with the SCID-P, SCID-DER, DSS, HRSD, YMRS, a neurological and general medicine review, a first-level brain imaging examination (CT and/or MRI). We conducted a systematic literature review (PubMed, Embase, PsychInfo) using the key terms "Capgras Syndrome" and "Misidentificaition". Results All patients were diagnosed with type-I BD and had concomitant CS that presented with Misidentification phenomena in the context of psychotic mixed state. They reported high scores for autopsychic and affective depersonalization symptoms as well as high SCI-DER (mean=24.4) and DSS (mean=13) total scores. Discussion and conclusion To our knowledge in literature, there are not studies that evaluated dissociative spectrum symptoms in CS in BD. This condition of identity and self fragmentation could be the key to shedding light on the interconnection between affective and non-affective psychotic disorders from schizophrenia to BD, and may underscore the possible validity of the concept of the unitary psychosis proposed by Griesinger [3–5]. Further research is warranted to replicate our clinical and qualitative observations and, in general, quantitative studies in large samples followed up over time are needed. Methodological limitations are considered.
Jonathan J Smart - One of the best experts on this subject based on the ideXlab platform.
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effects of including misidentified sharks in life history analyses a case study on the grey reef shark carcharhinus amblyrhynchos from papua new guinea
PLOS ONE, 2016Co-Authors: Jonathan J Smart, Andrew Chin, Leontine Baje, M Green, Sharon A Appleyard, Andrew J Tobin, Colin A Simpfendorfer, William T WhiteAbstract:Fisheries observer programs are used around the world to collect crucial information and samples that inform fisheries management. However, observer error may misidentify similar-looking shark species. This raises questions about the level of error that species Misidentifications could introduce to estimates of species' life history parameters. This study addressed these questions using the Grey Reef Shark Carcharhinus amblyrhynchos as a case study. Observer Misidentification rates were quantified by validating species identifications using diagnostic photographs taken on board supplemented with DNA barcoding. Length-at-age and maturity ogive analyses were then estimated and compared with and without the misidentified individuals. Vertebrae were retained from a total of 155 sharks identified by observers as C. amblyrhynchos. However, 22 (14%) of these were sharks were misidentified by the observers and were subsequently re-identified based on photographs and/or DNA barcoding. Of the 22 individuals misidentified as C. amblyrhynchos, 16 (73%) were detected using photographs and a further 6 via genetic validation. If misidentified individuals had been included, substantial error would have been introduced to both the length-at-age and the maturity estimates. Thus validating the species identification, increased the accuracy of estimated life history parameters for C. amblyrhynchos. From the corrected sample a multi-model inference approach was used to estimate growth for C. amblyrhynchos using three candidate models. The model averaged length-at-age parameters for C. amblyrhynchos with the sexes combined were L∞ = 159 cm TL and L0 = 72 cm TL. Females mature at a greater length (l50 = 136 cm TL) and older age (A50 = 9.1 years) than males (l50 = 123 cm TL; A50 = 5.9 years). The inclusion of techniques to reduce Misidentification in observer programs will improve the results of life history studies and ultimately improve management through the use of more accurate data for assessments.
