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Social and Behavioral Sciences Commons™

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Dartmouth College

2009

Articles 1 - 11 of 11

Full-Text Articles in Social and Behavioral Sciences

The Principled Control Of False Positives In Neuroimaging, Craig M. Bennett, George L. Wolford, Michael B. Miller Dec 2009

The Principled Control Of False Positives In Neuroimaging, Craig M. Bennett, George L. Wolford, Michael B. Miller

Dartmouth Scholarship

An incredible amount of data is generated in the course of a functional neuroimaging experiment. The quantity of data gives us improved temporal and spatial resolution with which to evaluate our results. It also creates a staggering multiple testing problem. A number of methods have been created that address the multiple testing problem in neuroimaging in a principled fashion. These methods place limits on either the familywise error rate (FWER) or the false discovery rate (FDR) of the results. These principled approaches are well established in the literature and are known to properly limit the amount of false positives across …

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Brain‐Mind And Structure‐Function Relationships: A Methodological Response To Coltheart, Adina L. Roskies Dec 2009

Brain‐Mind And Structure‐Function Relationships: A Methodological Response To Coltheart, Adina L. Roskies

Dartmouth Scholarship

In some recent papers, Max Coltheart has questioned the ability of neuroimaging techniques to tell us anything interesting about the mind and has thrown down the gauntlet before neuroimagers, challenging them to prove he is mistaken. Here I analyze Coltheart’s challenge, show that as posed its terms are unfair, and reconstruct it so that it is addressable. I argue that, so modified, Coltheart’s challenge is able to be met and indeed has been met. In an effort to delineate the extent of neuroimaging’s ability to address Coltheart’s concerns, I explore how different brain structure‐function relationships would constrain the ability of …

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The Divergence Of Legal Procedures, Aron Balas, Rafael La Porta, Florencio Lopez-De-Silanes, Andrei Shleifer Aug 2009

The Divergence Of Legal Procedures, Aron Balas, Rafael La Porta, Florencio Lopez-De-Silanes, Andrei Shleifer

Dartmouth Scholarship

Simeon Djankov et al. (2003) introduce a measure of the quality of contract enforcement -- the formalism of civil procedure -- for 109 countries as of 2000. For 40 of these countries, we compute procedural formalism every year since 1950. We find that large differences in procedural formalism between common and civil law countries existed in 1950 and widened by 2000. For this area of law, the findings are inconsistent with the hypothesis that national legal systems are converging, and support the view that legal origins exert long lasting influence on legal rules. (JEL K41, O17)

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Trade Liberalization And New Imported Inputs, Pinelopi Goldberg, Amit Khandelwal, Nina Pavcnik, Petia Topalova May 2009

Trade Liberalization And New Imported Inputs, Pinelopi Goldberg, Amit Khandelwal, Nina Pavcnik, Petia Topalova

Dartmouth Scholarship

No abstract provided.

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Financial Instability, Reserves, And Central Bank Swap Lines In The Panic Of 2008, Maurice Obstfeld, Jay C. Shambaugh, Alan M. Taylor May 2009

Financial Instability, Reserves, And Central Bank Swap Lines In The Panic Of 2008, Maurice Obstfeld, Jay C. Shambaugh, Alan M. Taylor

Dartmouth Scholarship

No abstract provided.

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What Do Consumers Really Pay On Their Checking And Credit Card Accounts? Explicit, Implicit, And Avoidable Costs, Victor Stango, Jonathan Zinman May 2009

What Do Consumers Really Pay On Their Checking And Credit Card Accounts? Explicit, Implicit, And Avoidable Costs, Victor Stango, Jonathan Zinman

Dartmouth Scholarship

No abstract provided.

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Microsaccade Rate Varies With Subjective Visibility During Motion-Induced Blindness, Po-Jang Hsieh, Peter U. Tse Apr 2009

Microsaccade Rate Varies With Subjective Visibility During Motion-Induced Blindness, Po-Jang Hsieh, Peter U. Tse

Dartmouth Scholarship

Motion-induced blindness (MIB) occurs when a dot embedded in a motion field subjectively vanishes. Here we report the first psychophysical data concerning effects of microsaccade/eyeblink rate upon perceptual switches during MIB. We find that the rate of microsaccades/eyeblink rises before and after perceptual transitions from not seeing to seeing the dot, and decreases before perceptual transitions from seeing it to not seeing it. In addition, event-related fMRI data reveal that, when a dot subjectively reappears during MIB, the blood oxygen-level dependent (BOLD) signal increases in V1v and V2v and decreases in contralateral hMT+. These BOLD signal changes observed upon perceptual …

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Memory And Musical Expectation For Tones In Cultural Context, Meagan E. Curtis, Jamshed J. Bharucha Apr 2009

Memory And Musical Expectation For Tones In Cultural Context, Meagan E. Curtis, Jamshed J. Bharucha

Dartmouth Scholarship

WE EXPLORED HOW MUSICAL CULTURE SHAPES ONE'S listening experience.Western participants heard a series of tones drawn from either the Western major mode (culturally familiar) or the Indian thaat Bhairav (culturally unfamiliar) and then heard a test tone. They made a speeded judgment about whether the test tone was present in the prior series of tones. Interactions between mode (Western or Indian) and test tone type (congruous or incongruous) reflect the utilization of Western modal knowledge to make judgments about the test tones. False alarm rates were higher for test tones congruent with the major mode than for test tones congruent …

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Reshaping The World Order: How Washington Should Reform International Institutions, Stephen Brooks, William C. Wohlforth Mar 2009

Reshaping The World Order: How Washington Should Reform International Institutions, Stephen Brooks, William C. Wohlforth

Dartmouth Scholarship

No abstract provided.

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The Margins Of Us Trade, Andrew B. Bernard, J. Bradford Jensen, Stephen J. Redding, Peter K. Schott Jan 2009

The Margins Of Us Trade, Andrew B. Bernard, J. Bradford Jensen, Stephen J. Redding, Peter K. Schott

Dartmouth Scholarship

Recent research in international trade emphasizes the importance of firms’ extensive margins for understanding overall patterns of trade as well as how firms respond to specific events such as trade liberalization. In this paper, we use detailed U.S. trade statistics to provide a broad overview of how the margins of trade contribute to variation in U.S. imports and exports across trading partners, types of trade (i.e. arm’s-length versus related-party) and both short and long time horizons. Among other results, we highlight the differential behaviour of related-party and arm’s-length trade in response to the 1997 Asian financial crisis.

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Computing Travel Time When The Exact Address Is Unknown: A Comparison Of Point And Polygon Zip Code Approximation Methods, Ethan M. Berke, Xun Shi Jan 2009

Computing Travel Time When The Exact Address Is Unknown: A Comparison Of Point And Polygon Zip Code Approximation Methods, Ethan M. Berke, Xun Shi

Dartmouth Scholarship

Travel time is an important metric of geographic access to health care. We compared strategies of estimating travel times when only subject ZIP code data were available.Using simulated data from New Hampshire and Arizona, we estimated travel times to nearest cancer centers by using: 1) geometric centroid of ZIP code polygons as origins, 2) population centroids as origin, 3) service area rings around each cancer center, assigning subjects to rings by assuming they are evenly distributed within their ZIP code, 4) service area rings around each center, assuming the subjects follow the population distribution within the ZIP code. We used …

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