The authors of the current study (2) investigated the relationship of common genetic variations and gaze patterns. In particular, they tested whether variations in the cannabinoid receptor 1 (CNR1) gene would modulate gaze duration on (happy) faces. To this end, four single-nucleotide polymorphisms (SNPs) in the CNR1 gene were genotyped in 30 healthy subjects (13 […]
Monatsarchiv für December 2011
Operant and classical conditioning in the same neuron
The marine snail Aplysia is perhaps best known for its Nobel-award-winning learning ability. In the classic work, a small water jet to the body of the animal was paired with electric shock to accomplish classical (or Pavlovian) conditioning. Since about the 1930s, it has been a longstanding debate among psychologists whether classical and operant conditioning […]
Effects of appetitive and nonappetitive odors on feeding behavior and on level of biogenic amines
A short communication was published in November 2011 (Neurobiologie) based on a study from 2005 (Journal of Neuroscience). In the blowfly Phormia regina, the authors investigated the effect on PER when flies are (pre-) exposed to odors. They found that feeding threshold to sugar increased in the presence of the repellent D-limonene and decreased in […]
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