Features

Sex Differences in the Brain
Sex Differences in the Brain
Margaret M. McCarthy | Oct 1, 2015
How male and female brains diverge is a hotly debated topic, but the study of model organisms points to differences that cannot be ignored.
Brain Gain
Brain Gain
Jef Akst | Oct 1, 2015
Young neurons in the adult human brain are likely critical to its function.
Lost Colonies
Lost Colonies
Anna Azvolinsky | Oct 1, 2015
Next-generation sequencing has identified scores of new microorganisms, but getting even abundant bacterial species to grow in the lab has proven challenging.

Contributors

Contributors
Contributors
Contributors
Meet some of the people featured in the October 2015 issue of The Scientist.

Editorial

Special Delivery
Special Delivery
Special Delivery
Neurons in new brains and old

Speaking of Science

Speaking of Science
Speaking of Science
Speaking of Science
October 2015's selection of notable quotes

Notebook

Ocean Sentinels
Ocean Sentinels
Ocean Sentinels
Researchers are struggling to understand shifts in the migratory patterns of penguins in the Southwest Atlantic.
Lefties, Language, and Lateralization
Lefties, Language, and Lateralization
Lefties, Language, and Lateralization
The long-sought genetic link between handedness and language lateralization patterns in the brain is turning out to be illusory.
Formaldehyde Fears
Formaldehyde Fears
Formaldehyde Fears
Data on the links between ALS and the chemical have been contradictory, but the latest study suggests undertakers are at risk.
Whistle While You Work Your Brain
Whistle While You Work Your Brain
Whistle While You Work Your Brain
Communication based on whistles offers a “natural experiment” for studying how the brain processes language.

Online First

Opinion: Pay-to-Play Publishing
Opinion: Pay-to-Play Publishing
Opinion: Pay-to-Play Publishing
Online scientific journals are sacrificing the quality of research articles to make a buck.

Modus Operandi

Holding Neurons Steady
Holding Neurons Steady
Holding Neurons Steady
Scientists engineer a feedback loop to fine-tune neuron activity with optogenetics.

The Literature

Sweet and Low
Sweet and Low
Sweet and Low
Glucose activates sleep-promoting neurons in the mouse hypothalamus.
Brain Freeze
Brain Freeze
Brain Freeze
A common tissue fixation method distorts the true neuronal landscape.
Negative Thinking
Negative Thinking
Negative Thinking
Researchers uncover the first light-controlled negative-ion channels in algae, and they are fast.

Profile

Circuit Dynamo
Circuit Dynamo
Circuit Dynamo
Eve Marder’s quest to understand neurotransmitter signaling is more than 40 years old and still going strong.

Scientist to Watch

Jacob Hooker: Weaver of Brain Science
Jacob Hooker: Weaver of Brain Science
Jacob Hooker: Weaver of Brain Science
Director of Radiochemistry, Athinoula A. Martinos Center for Biomedical Imaging; Associate Professor, Harvard Medical School. Age: 35

Lab Tools

Into the Limelight
Into the Limelight
Into the Limelight
Glial cells were once considered neurons’ supporting actors, but new methods and model organisms are revealing their true importance in brain function.
Decon Recon
Decon Recon
Decon Recon
Published genomes are chock-full of contamination. But as awareness of the problem grows, so do methods to help combat it.

Careers

Ready, Willing, and Able
Ready, Willing, and Able
Ready, Willing, and Able
Researchers with disabilities are making their fields more accessible.

Reading Frames

Brain New World
Brain New World
Brain New World
The melding of mind and machine uncovers mysteries harbored in the brain.

Foundations

The First Neuron Drawings, 1870s
The First Neuron Drawings, 1870s
The First Neuron Drawings, 1870s
Camillo Golgi’s black reaction revealed, for the first time, the fine structures of intact neurons, which he captured with ink and paper.