Response and Habituation of the Human Amygdala during Visual Processing of Facial Expression

@article{Breiter1996ResponseAH,
  title={Response and Habituation of the Human Amygdala during Visual Processing of Facial Expression},
  author={Hans C. Breiter and Nancy Etcoff and Paul J. Whalen and W. A. Kennedy and Scott L. Rauch and Randy L. Buckner and M. M. Strauss and Steven E. Hyman and Bruce R. Rosen},
  journal={Neuron},
  year={1996},
  volume={17},
  pages={875-887}
}

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References

SHOWING 1-10 OF 172 REFERENCES

Impaired recognition of emotion in facial expressions following bilateral damage to the human amygdala

Findings suggest the human amygdala may be indispensable to recognize fear in facial expressions, but is not required to recognize personal identity from faces, and constrains the broad notion that the amygdala is involved in emotion.

Fear and the human amygdala

The results show that bilateral, but not unilateral, damage to the human amygdala impairs the processing of fearful facial expressions, and it is proposed that the amygdala is required to link visual representations of facial expressions with representations that constitute the concept of fear.

Differential Sensitivity of Human Visual Cortex to Faces, Letterstrings, and Textures: A Functional Magnetic Resonance Imaging Study

Different regions of ventral extrastriate cortex are specialized for processing the perceptual features of faces and letterstrings, and that these regions are intermediate between earlier processing in striate and peristriates cortex, and later lexical, semantic, and associative processing in downstream cortical regions.

Neural substrates of facial recognition.

It is suggested that humans use different brain regions in performing these three routine daily activities of categorizing faces according to gender, recognizing new faces, and recognizing familiar faces, which activate three different pathways.

Activity of single neurons in the monkey amygdala during performance of a visual discrimination task.

The activity of single neurons was recorded extracellularly from the monkey amygdala while monkeys performed a visual discrimination task and some neurons apparently reflected a certain behavioral significance of the stimuli that was separate from the task, such as the face of a particular person, smiling human faces, etc.

Human amygdala activation detected with echo-planar functional magnetic resonance imaging.

Findings are consistent with the large corpus of data from non-human studies suggesting that the amygdala is a key structure for extracting the affective significance from external stimuli.

Impaired fear conditioning following unilateral temporal lobectomy in humans

Results show that temporal lobe structures in humans, as in other mammals, are important components in an emotional memory network.

Facial emotion recognition after bilateral amygdala damage: Differentially severe impairment of fear

Although the amygdala is widely believed to have a role in the recognition of emotion, a central issue concerns whether it is involved in the recognition of all emotions or whether it is more

Facial discrimination and emotional recognition in schizophrenia and affective disorders.

Those with schizophrenia showed deficits on all four tasks when compared with controls and did worse than patients with depression on the emotion tasks, suggesting that patients with schizophrenia are impaired on a broader range of facial perception skills.
...