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2009
Abstract Vul, Harris, Winkielman, and Pashler (2009),(this issue) argue that correlations in many cognitive neuroscience studies are grossly inflated due to a widespread tendency to use nonindependent analyses. In this article, I argue that Vul et al.'s primary conclusion is correct, but for different reasons than they suggest. I demonstrate that the primary cause of grossly inflated correlations in whole-brain fMRI analyses is not nonindependence, but the pernicious combination of small sample sizes and stringent alpha-correction levels.
Perspectives on Psychological Science
Correlations in Social Neuroscience Aren’t VoodooVul, Harris, Winkielman, and Pashler (2009, this issue) claim that many brain–personality correlations in fMRI studies are ‘‘likely . . . spurious’’ (p. 274), and ‘‘should not be believed’’ (p. 285). Several of their con- clusions are incorrect. First, they incorrectly claim that whole-brain regressions use an invalid and ‘‘nonindepen- dent’’ two-step inferential procedure, a determination based on a survey sent to researchers that only included nondiagnostic questions about the descriptive process of plotting one’s data. We explain how whole-brain regres- sions are a valid single-step method of identifying brain regions that have reliable correlations with individual difference measures. Second, they claim that large corre- lations from whole-brain regression analyses may be the result of noise alone. We provide a simulation to demon- strate that typical fMRI sample sizes will only rarely produce large correlations in the absence of any true ef- fect. Third, they claim that the reported correlations are inflated to the point of being ‘‘implausibly high.’’ Though biased post hoc correlation estimates are a well-known consequence of conducting multiple tests, Vul et al. make inaccurate assumptions when estimating the theoretical ceiling of such correlations. Moreover, their own ‘‘meta- analysis’’ suggests that the magnitude of the bias is ap- proximately .12—a rather modest bias.
Abstract Validating the association between brain activity, as measured in functional MRI, with a combination or a contrast of tasks is usually performed by replicating an experiment in a small group of subjects, and by assessing the presence of a statistically significant average ef-
2007 •
2000 •
… on Psychological Science
Correlations in social neuroscience aren't voodoo: Commentary on Vul et al.(2009)2009 •
La Ley por el Derecho a la Vivienda. Balance de un año de aplicación
La vivienda en el Derecho de la Unión Europea2024 •
This paper discusses the progressive influence of EU Law on national and local housing policies
Shifting Paradigms: Women, Rhetoric, and Power, c.700-c.1300 CE, University of Notre Dame in London, Feb. 22-23
Anna Komnene’s family politics and the Norman-Byzantine wars of 1107-08 and 1147-482024 •
Anna Komnene, famous for her attempt to seize the throne from her brother John upon their father’s death in 1118, ranks highly on any list of politically engaged medieval women. After this failed attempt, Anna has generally been regarded as a political outsider, limited to making barbs against her brother and nephew in her history, the Alexiad. On the basis of a peculiar story set during the second Norman invasion of Byzantium (1107-1108) in the Alexiad, this paper contends that far from being a spent force, the relative insecurity of Manuel I Komnenos (r. 1143-1180) in his early years gave Anna the opportunity to return to the political scene. Alongside her contemporary Eirene the sevastokratorissa, Anna can be seen jockeying for position in the wider Komnenian family sphere. The Alexiad has frequently been read in light of how the Second Crusade affected Anna’s retelling of the first, but no attention has been devoted to how the third Norman invasion of Byzantium (1147) affected Anna’s account of the first two. I argue here that Anna’s treatment of the 1107-1108 war addresses issues directly related to the 1147 war, specifically who would receive command of the Byzantine expedition to relieve besieged Kerkyra. In her account of 1107-1108, Anna demonizes the actions of an ancestor of the eventual commander of the 1147 relief force. In so doing, she was both criticizing that family’s claims to imperial status while promoting those of her son. Anna’s children never feature in the Alexiad and so have largely been ignored, yet they were instrumental to her unique political vision and emerging Byzantine concepts of dynasty and the place of women in their shaping.
Journal of Language Relationship • Вопросы языкового родства
*Tubar(i)‐: a divine epithet reflected in Luwic onomastics2023 •
Senza trampoli. Saggi filosofici per L.Perissinotto
Ancora su comprensione e interpretazione2023 •
The God's weakness
LE « CULTE DE LA FORCE » ET LA « FAIBLESSE DE DIEU ». LECTURE DE 2CO.12.8-10 ET QUELQUES ÉLÉMENTS DE RÉFLEXIONS DANS LE CONTEXTE AFRICAIN2024 •
Polska 1944/45–1989. Studia i Materiały
Działalność kapitana Juliusza Wilczura-Garzteckiego w Polskiej Misji Wojskowej Likwidacyjnej w Rzymie2023 •
Psychology of Violence
Cognitive Trauma Therapy for Battered Women: Replication and extension2016 •
2016 •
2017 •
Diabetes & vascular disease research
The combined effect of vitamin D and parathyroid hormone concentrations on glucose homeostasis in older patients with prediabetes: A cross-sectional study2017 •
ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference
Investigation of Surface Roughness of Carbon Steel Machined Parts After Nanosecond Fiber Laser MarkingKırıkkale Üniversitesi Sosyal Bilimler Dergisi
Tavan Arasındaki Eski Lamba ve Alaaddin’in Sihirli Lambası Eserlerine Göstergelerarası Bir Yaklaşım Denemesi2021 •
Egyptian Dental Journal
Immunohistochemical Evaluation of Bcl-2 and Ki-67 in Buccal Mucosa of Induced- Immunosuppressed Albino Rats2018 •
Soil Research
The composition of organic phosphorus in soils of the Snowy Mountains region of south-eastern Australia2017 •
International Journal of Health Sciences (IJHS)
Development and validation of UV spectrophotometric method for trimethoprim in pure and marketed formulation2022 •