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Alcmaeon: Pioneer of experimental Brain Research
The ancient philosopher Alcmaeon of Croton founded scientific brain research.
28.01.2014
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- Glossary
Complex cell
A nerve cell in the primary visual cortex with large receptive fields. They respond to visual stimuli with appropriate contrast, a specific orientation, and often also a specific direction of movement.
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- Glossary
Inferior occipital gyrus
Part of the occipital lobe, the rearmost of the four large lobes of the cerebral cortex. Functionally, this is where visual information is processed. The inferior occipital gyrus is part of the early visual association areas.
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- Glossary
Temporo-parietal junction
The transition between the temporal and parietal lobes – i.e., the temporal and parietal lobes – of the cerebral cortex. Here, in the posterior region of the Sylvian fissure, information from the limbic system, the thalamus, and the visual, auditory, and somatosensory cortex is integrated. Accordingly, the temporo-parietal junction forms an anatomical and functional hub of the brain that helps us develop complex abilities, including the ability to recognize biological movement or the ability to empathize with other people.
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- Glossary
Simple cell
An orientation-sensitive cell in the primary visual cortex (part of the cerebral cortex) whose receptive field is divided into ON and OFF subfields. For example, it reacts strongly to lines of a certain orientation.
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- Glossary
Pulvinar
The pulvinar is a fairly large nucleus in the posterior thalamus that is connected to many visual centers. It appears to increase the excitability of cells in the visual cortex as soon as a stimulus is noticed. Some studies suggest that the pulvinar may also indirectly support language processing via cortical connections.
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The Team
20.03.2017
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- Emotions
Signals from Within
Emotions shape our lives. That's why we're so good at recognizing and empathizing with them.
18.12.2025
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- Glossary
Cortical blindness
When the primary visual cortex is destroyed, those affected are effectively blind, even though their eyes are undamaged. However, they are often unconsciously able to grasp and catch objects and even name them when asked to guess. This effect is known as blind sight.
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- Glossary
Lateral geniculate body
The lateral geniculate nucleus is the section of the thalamus (the largest part of the diencephalon) where around 90% of the optic nerve axons terminate. It has a characteristic stratification into six cell layers. The nerve cells of the lateral geniculate nucleus send their projections to the visual cortex. Together with the medial geniculate nucleus, it forms the metathalamus.
