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The Brain's Response to Depressing Images

June 22, 2015

The Brain's Response to Depressing Images

By using images to induce negative emotions in human participants, Luke Chang, Tor Wager and colleagues develop and validate a brain signature of emotion that can predict the magnitude and type of negative affective experience in new individuals. Read the accompanying Synopsis.

Image credit: To Freedom, by Flickr user AndreasS

06/23/2015

community page

The Theory and Practice of a REALLY Long Experiment

Richard Lenski has been running his iconic long-term evolution experiment for over 27 years. In this interview, ecologist Jeremy Fox asks him how and why he does it.

Image credit: Brian Baer, Michigan State University.

The Theory and Practice of a REALLY Long Experiment

Recently Published Articles

Current Issue

Current Issue May 2015

06/22/2015

research article and synopsis

Compartmentalized Plasticity of Spine Calcium Dynamics

Friedrich Johenning, Anne-Kathrin Theis, Dietmar Schmitz and colleagues show how ryanodine receptors (a type of intracellular calcium channel) generate a signalling nanodomain within individual dendritic spines, enabling compartmentalized plasticity of calcium dynamics. Read the Synopsis.

Image credit: journal.pbio.1002182.g001

Compartmentalized Plasticity of Spine Calcium Dynamics

06/19/2015

research article

Unraveling the Transmission Ecology of Polio

Using models to reveal the epidemiology of historic poliovirus transmission in the US, this study by Micaela Martinez-Bakker, Aaron King and Pejman Rohani reconstructs the millions of silent infections and identifies why polio epidemics are explosive, seasonal, and vary geographically.

Image credit: Art by John Megahan.

Unraveling the Transmission Ecology of Polio

06/18/2015

research article and primer

Representations of Value in the Brain

A study of single neurons in the ventral striatum by Caleb Strait, Brianna Sleezer and Benjamin Hayden reveals signatures of value comparison and selection during a risky choice task, suggesting that the cortex and its striatal targets make overlapping contributions to the choice process. Read the accompanying Primer by Jeffrey Stott and David Redish. 

Representations of Value in the Brain

Image credit: Karin Odell

06/10/2015

research article

Climate Change Will Shorten the Plant Growing Period

Camilo Mora, Steven Running and co-authors show that while ongoing climate change can increase the number of days above freezing, changes in other climatic conditions will lead to fewer days when plants can grow, in turn affecting biodiversity and people. Read the Synopsis.

Climate Change Will Shorten the Plant Growing Period

Image credit: Arthur Belala, United States Army Corps of Engineers

06/11/2015

essay

How Much Information in the Biosphere?

The diversity of life on Earth is typically considered in terms of the total number of species. However, this Essay by Hanna Landenmark, Duncan Forgan, Charles Cockell estimates the total amount of DNA in the biosphere at 5 x 1031 megabases and offers an information-based view of biodiversity.

How Much Information in the Biosphere?

Image credit: David J Hammett

06/09/2015

perspective

The $28bn Cost of Irreproducibility

This Perspective provides estimates of the rate of irreproducibility of preclinical research and its direct cost implications, outlining a framework for solutions.

The $28bn Cost of Irreproducibility

Image credit: Flickr user Chris Potter

06/04/2015

research article

Virulence, Toxins and Host-Pathogen Co-evolution

This study explores the specific role of virulence and toxin genes during the evolutionary adaptation of a pathogen to an animal host.

Virulence, Toxins and Host-Pathogen Co-evolution

Image credit: Andrei Papkou, Schulenburg lab