There will be a total of 14 visits in the study: will complete a screening visit, an initial visit, 10 session visits with active tDCS(transcranial direct current stimulation) andcognitive remediation therapy, and follow--up visits immediately (within 5 days), 1 and 3 months after the last intervention. Subjects will be informed of their group assignment at the end of the study.

There will be a total of 14 visits in the study: will complete a screening visit, an initial visit, 10 session visits with sham tDCS and cognitive remediation therapy, and follow--up visits immediately (within 5 days), 1 and 3 months after the last intervention. Subjects will be informed of their group assignment at the end of the study.

The anode will be placed over left DLPFC at F3, according to the 10-20 international system for EEG electrode placement. The cathode will be placed over the contralateral supraorbital area. They will be placed via two saline soaked electrode sponges (3 cm x 4.5 cm).After electrodes have been placed, the participants will be instructed to log into CRT software using a unique patient identifier. The CRT software that will be used will be Cogmed working memory training program (Pearson Education, Inc.)Active tDCS will be applied at a ramp-like fashion from 0 to 2mA over 10 seconds, and will be ramped down for the last 10 seconds of stimulation. Active tDCS will last 20 minutes each session. The sham procedure involves only 30 seconds of stimulation at 2mA.

The Cogstate Battery is a computerized cognitive assessment program which measures a wide

range of cognitive functions (e.g. psychomotor speed, reaction time, working memory, divided

attention, learning), which can be repeated with little to none observed practice effects (Falleti

2006). All tasks within the battery were adaptations of standard neuro-psychological and

experimental psychological tests. Time to administer requires approximately 15-20 minutes

consists of 8 tasks in the form of card games that are presented in succession.

The Rey Auditory Verbal Learning Test (AVLT) is a measure of immediate auditory and verbal

memory as well as delayed recall. Participants are given a list of 15 unrelated words repeated

over five different trials and are asked to repeat. Another list of 15 unrelated words are given and

the client must again repeat the original list of 15 words and then again after 30 minutes.

Approximately 45-50 minutes is required for the procedure. (Loring et al. 2008, Strauss 2006)

The Picture Sequence Memory Test (PSMT) is a measure for use in the assessment of episodic

memory. Participants are asked to recall, in increasing length, a series of illustrated objects and

activities that are presented in a particular order on the computer screen. The participants are

asked to recall the sequence of pictures that is demonstrated over two learning trials. The number

of pictures may vary depending on the age. The test takes approximately 7 minutes to administer.

(Dikmen et al. 2014)

This task measures both a participant's attention and inhibitory control. The test requires the

participant to focus on a given arrow while inhibiting attention to other arrows surrounding it.

(Heaton et al. 2014) Sometimes the middle stimulus is pointing in the same direction as the

"flankers" (congruent) and sometimes in the opposite direction (incongruent). Scoring is based

on a combination of accuracy and reaction time. The test takes approximately 3 minutes to

administer.

This instrument is a measure of processing speed. (Denboer et al. 2014). The participant is presented with a set of nine symbols on the computer screen, each associated with a number 1-9, and is then presented with a series of symbols without numbers and is asked to orally say each number that should go with that symbol, without skipping any. The score is equal to the number of symbols correctly identified orally within two minutes. This takes approximately 3 minutes.