en پژوهشي Original Research Articles <p style="text-align: justify;"><strong>Objectives:</strong> Lexical access is the process by which the basic conceptual, syntactical and morpho-phonological information of words are activated. Most studies of lexical access have focused on picture naming. There is hardly any previous research on other parameters of lexical access such as verbal fluency and analysis of connected speech in Persian normal participants. This study investigates the lexical access performance in normal speakers in different issues such as age, sex and education.</p> <p style="text-align: justify;"><strong>Methods:</strong> The performance of 120 adult Persian speakers in three tasks including picture naming, verbal fluency and connected speech, was examined using &quot;Persian Lexical Access Assessment Package&rdquo;. The performance of participants between two gender groups (male/female), three education groups (below 5 years, above 12 years, between 5 and 12 years) and three age groups (18-35 years, 36-55 years, 56-75 years) were compared.</p> <p style="text-align: justify;"><strong>Results:</strong> According to findings, picture naming increased with increasing education and decreased with increasing age. The performance of participants in phonological and semantic verbal fluency showed improvement with age and education. No significant difference was seen between males and females in verbal fluency task. In the analysis of connected speech there were no significant differences between different age and education groups and just mean length of utterance in males was significantly higher than females.</p> <p style="text-align: justify;"><strong>Discussion:</strong> The findings could be a primitive scale for comparison between normal subjects and patients in lexical access tasks, furthermore it could be a horizon for planning of treatment goals in patients with word finding problem according to age, gender and education.</p> Lexical access, Word-finding, Picture naming, Verbal fluency, Analysis of connected speech 16 20 http://irj.uswr.ac.ir/browse.php?a_code=A-10-316-1&slc_lang=en&sid=1 Zahra Sadat Ghoreishi ZahraQoreishi@yahoo.com No University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. Mojtaba Azimian mazimian@yahoo.com Yes University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. Anahita Khorrami banaraki asaliam20@yahoo.co.uk No Tehran University of medical Sciences, Tehran, Iran. Javad Alaghband rad rad@dal.ca No Tehran University of medical Sciences, Tehran, Iran. Seyed Majid Rafiee dr.mrafiee@yahoo.com No Tehran University of medical Sciences, Tehran, Iran. Mahyar Salavati mahyarsalavati@gmail.com No University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. Fateme Tahmaseb Zade tahmasebfatemeh@gmail.com No University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. Zahra Sedigh zsediq@yahoo.com No University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. Sara Pishevar spishevar@yahoo.com No University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. Vahide Mohammadi Sabet vahide.sabet@yahoo.com No University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.