Infographic: Pathways from Noise to Cardiovascular Damage
Infographic: Pathways from Noise to Cardiovascular Damage
Research in mice and humans points to oxidative stress and inflammation as likely drivers of noise-induced health effects such as hypertension and heart disease.
Infographic: Pathways from Noise to Cardiovascular Damage
Infographic: Pathways from Noise to Cardiovascular Damage

Research in mice and humans points to oxidative stress and inflammation as likely drivers of noise-induced health effects such as hypertension and heart disease.

Research in mice and humans points to oxidative stress and inflammation as likely drivers of noise-induced health effects such as hypertension and heart disease.

amygdala
Broken Heart Syndrome Linked to the Brain
Broken Heart Syndrome Linked to the Brain
Amanda Heidt | Jun 1, 2021
A chronically stressed amygdala can prime the heart to overreact to acute stress events, a new study shows.
Brain Circuitry for Fear and Anxiety Is the Same on fMRI
Brain Circuitry for Fear and Anxiety Is the Same on fMRI
Amanda Heidt | Sep 21, 2020
A study in people fails to detect differences in the brain’s response to fear or anxiety, long thought to be controlled by different neural circuits.
Infographic: What Social Isolation Can Mean for the Brain
Infographic: What Social Isolation Can Mean for the Brain
Catherine Offord | Jul 13, 2020
People who show low social engagement over long periods of time often show reductions in cognitive function. Studies of the brain may provide clues about this correlation.
Karaoke-Sleep Study Links Disrupted REM With Poor Memory Processing
Karaoke-Sleep Study Links Disrupted REM With Poor Memory Processing
Katarina Zimmer | Jul 11, 2019
An unusual experiment suggests that interrupted REM sleep can interfere with the amygdala’s ability to process emotional memories overnight—in this case, the distressing memories of listening to oneself sing out of tune.
Defeating Fear Depends on Amygdala Suppression
Defeating Fear Depends on Amygdala Suppression
Sukanya Charuchandra | Nov 1, 2018
Researchers determine the neurological mechanics underpinning a technique to extinguish fearful memories using goal-directed eye movements.
Distinct Regions Drive Responses to Anxiety, Fear
Distinct Regions Drive Responses to Anxiety, Fear
Catherine Offord | Jan 1, 2018
Researchers map brain activity associated with a person’s anticipation of or direct confrontation with danger.
Infographic: Anticipation Versus Confrontation
Infographic: Anticipation Versus Confrontation
Catherine Offord | Dec 31, 2017
The brain is activated differently when it’s contemplating, rather than directly facing, a threat.
Contributors
Contributors
Jef Akst and Bob Grant | Nov 1, 2017
Meet some of the people featured in the November 2017 issue of The Scientist.
Image of the Day: Fear Center
Image of the Day: Fear Center
The Scientist Staff, The Scientist Staff | Oct 26, 2017
A set of neurons in the brain’s central amygdala plays a key role in forming memories of aversive experiences, scientists find in mice.  
The Cellular Hallmarks of Consciousness
The Cellular Hallmarks of Consciousness
Anna Azvolinsky | Sep 21, 2017
Recording from single neurons of epilepsy patients, neuroscientists show that both the strength and timing of neuronal firing are important to consciously perceive a visual object. 
Scientists Activate Predatory Instinct in Mice
Scientists Activate Predatory Instinct in Mice
Diana Kwon | Jan 15, 2017
A new study reveals how the amygdala is involved in controlling predatory behavior in mice.
Lying Repetitively Linked to Decreased Amygdala Activity
Lying Repetitively Linked to Decreased Amygdala Activity
Kerry Grens | Oct 25, 2016
As people continue to tell tall tales, fMRI data show certain brain regions become less busy.
Why Screams Scare Us
Why Screams Scare Us
Jef Akst | Jul 20, 2015
Analyzing the acoustical qualities of screams and other sounds, researchers pinpoint why people find screams—and emergency vehicle sirens—frightening.
Rat Odors Teach Fear
Rat Odors Teach Fear
Kerry Grens | Jul 30, 2014
Rodent pups can learn to fear a stimulus through the odor signals given by their mother.
Overcoming Fears While Napping
Overcoming Fears While Napping
Kate Yandell | Sep 22, 2013
Repeated exposure to fear-associated stimuli during short bouts of sleep made study participants less frightened of related provocations once they awoke.
Manipulating Mouse Memory
Manipulating Mouse Memory
Chris Palmer | Jul 25, 2013
Researchers deliver bursts of light to specific cells in the mouse hippocampus to implant false memories about a fearful event.
Scaring Those Who Have No Fear
Scaring Those Who Have No Fear
Kate Yandell | Feb 5, 2013
Scientists found a way to cause panic attacks in women with amygdala damage.
Psychopathic Pathology
Jef Akst | Nov 28, 2011
The brains of psychopaths have a different structure than healthy brains, perhaps explaining their antisocial and impulsive behaviors.
Soldiers' Amygdalae Show Scars
Kerry Grens | Aug 30, 2011
A year and a half after soldiers have returned from war, impairments in the regulatory circuitry of the amygdala remain.