Attention bias (AB)

Attention bias refers to a cognitive phenomenon where individuals selectively prioritize the processing of specific environmental stimuli over others, typically based on emotional or motivational relevance (Fiveable, 2024). In neuropsychiatry, it is most frequently studied as a 'threat bias' in anxiety disorders or a 'negative bias' in depression, where patients show an automatic tendency to focus on distressing or threatening information (PubMed, 2015). This bias is biologically rooted in the interaction between 'bottom-up' emotional processing in the amygdala and 'top-down' executive control in the prefrontal cortex (PFC) (Binghamton University, 2015). While not a physical molecule or receptor, it is considered a vital therapeutic target for cognitive-behavioral interventions and digital therapeutics such as Attention Bias Modification (ABM) (PNAS, 2021). Furthermore, genetic variations in the dopamine D4 receptor (DRD4), COMT, and the serotonin transporter (SLC6A4) have been linked to individual differences in attention bias expression (Oxford Academic, 2012; PLOS, 2013). Pharmacological agents like SSRIs and ketamine have been shown to modulate these biases, often serving as an early indicator of therapeutic efficacy before clinical mood improvements manifest (David Publishing, 2011).

Other names

Attentional biasThreat biasCognitive biasEmotional biasAttentional threat bias

Modulation of the amygdala-prefrontal cortex (PFC) circuitry and various neurotransmitter systems (including serotonin, dopamine, and glutamate) to shift selective attention from negative or threatening stimuli toward neutral or positive stimuli (PubMed, 2015; David Publishing, 2011).