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The amygdala is one of the best-understood brain regions with regard to differences between the sexes. The amygdala is larger in males than females, in children aged 7 to 11, [17] adult humans, [18] and adult rats. [19] There is considerable growth within the first few years of structural development in both male and female amygdalae. [20]
These frontal areas communicate directly with the amygdala and, in light of appraisal, may reduce or magnify the amygdala's fear response. If you glimpse what looks like a snake, long before your younger frontal areas have had time to determine it is a stick, the old thalamus-amygdala system will have evoked fear.
The functional-equivalency hypothesis is that mental images are "internal representations" that work in the same way as the actual perception of physical objects. [33] In other words, the picture of a dog brought to mind when the word dog is read is interpreted in the same way as if the person was observing an actual dog before them.
Authors Brown, Kulik, and Conway argued that these special memories involve the limbic system, specifically, the amygdala. There is an abundancy of research that shows the amygdala involvement regarding retrieval of emotional memories, for example, research using brain imaging techniques.
Poffenroth tells Yahoo Life that too many distractions cause our amygdala (the brain’s fear center) to become overactive, making it harder to focus.Additionally, she says stress hormones play a ...
In evolutionary psychology, people often speak of the four Fs which are said to be the four basic and most primal drives (motivations or instincts) that animals (including humans) are evolutionarily adapted to have, follow, and achieve: fighting, fleeing, feeding and fucking (a more polite synonym is the word "mating"). [1] The list of the four ...
The animal is then tested by being played an intermediate stimulus C, e.g. a 15 Hz tone, and observing whether the animal presses the lever associated with the positive or negative reward, thereby indicating whether the animal is in a positive or negative mood. This might be influenced by, for example, the type of housing the animal is kept in ...
The activity in the amygdala is part of the episodic memory that was being created due to the adverse stimuli. [10] Most recently, an intracranial EEG study found that the amygdala triggered more pronounced hippocampal sharp-wave ripples after the encoding of more arousing experiences, which are believed to play a critical role in memory ...