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. Author manuscript; available in PMC: 2012 Nov 30.
Published in final edited form as: J Neurosci. 2012 May 30;32(22):7723–7733. doi: 10.1523/JNEUROSCI.5558-11.2012

Figure 1.

Figure 1

(a) Target (135°) and distracter (45°) orientations are marked by vertical dashed lines. During a coarse discrimination with low target/distracter similarity, neurons tuned to the behaviorally relevant feature should be the target of attentional gain, given their large signal-to-noise ratio (SNR). However, (b) during a fine discrimination, off-target neurons that flank the behaviorally-relevant feature theoretically carry more information, yielding a higher SNR. Target (90°) and distracter (92°) orientations are marked by vertical dashed lines. Adapted with permission from Navalpakkam and Itti (2007).