Illustration of the procedure.

<p>The emotional induction task and the word recognition task were alternated. In this example, the first 4 stimuli after the fixation in Task 2 are word fragments, and the fifth is a word.</p

The comparison between positive (POS) and negative (NEG) emotional states.

<p>The comparison between positive (POS) and negative (NEG) emotional states.</p

The top panel shows ERPs elicited by word processing under five emotional states at PO7 and PO8 electrodes.

<p>The bottom panel shows topographic maps for difference waves between neutral and each of the other four emotional states during the time window of 250–280 ms after stimulus onset. A clear recognition potential (RP) over the occipital scalp can be indentified under the neutral (NEU), highly positive (HP), slightly positive (SP), highly negative (HN) and slightly negative (SN) emotional states, which is highest in the case of the neutral emotional state.</p

Mean amplitudes and peak latencies for the recognition potential (RP) evoked by the word processing under five types of emotional states at electrodes that showed the largest RP responses (Standard Deviations were illustrated in parentheses).

<p>Mean amplitudes and peak latencies for the recognition potential (RP) evoked by the word processing under five types of emotional states at electrodes that showed the largest RP responses (Standard Deviations were illustrated in parentheses).</p

The comparison between neutral (NEU) and other emotional states (EMO).

<p>The comparison between neutral (NEU) and other emotional states (EMO).</p

Participants' self-rating scores for their emotional states under five conditions (SDs in parentheses).

<p>Participants' self-rating scores for their emotional states under five conditions (SDs in parentheses).</p

Mean latencies and their standard deviations (ms) of each S1-evoked potential for AWS and AFS and the results of <i>t</i>-tests.

Mean latencies and their standard deviations (ms) of each S1-evoked potential for AWS and AFS and the results of t-tests.</p

Mean RTs, ACCs, FAs and their standard deviations for AWS and AFS.

Mean RTs, ACCs, FAs and their standard deviations for AWS and AFS.</p

Brain activation maps for differences between conditions.

<p>TC, true character; RTC, radical-rearranged true characters; RPC, radical-rearranged pseudo-characters. Green: RTC/RPC greater than TC. Red: TC greater than RTC/RPC.</p

Mean latencies and standard deviations (ms) of S-N2 and P3 for AWS and AFS.

Mean latencies and standard deviations (ms) of S-N2 and P3 for AWS and AFS.</p