A comparative study of hearing-impaired and normal-hearing young adults—Verbal and nonverbal abilities

Effect of visual presentation format and recall direction on letter span and error patterns in Deaf signing and hearing adults

“…This pattern has been found with children (e.g., O'Connor & Hermelin, 1976;Tomlinson-Keasey & Smith-Winberry, 1990) and adults (e.g., Hamilton, 2011;Hirshorn et al, 2012). The pattern replicates across digits (e.g., Andin et al, 2013;Koo et al, 2008;Wilson et al, 1997), letters (e.g., Bavelier et al, 2006;Hanson, 1990;Hirshorn et al, 2012), words (Geraci et al, 2008;Hanson, 1982;Logan et al, 1996), and sentences (Streff et al, 1978).…”

“…For example, the Corsi Block Tapping Task (Corsi, 1972) involves serial recall of an object-tapping sequence. Research on variants of the Corsi task is mixed, with some studies reporting greater visuospatial spans for Deaf participants than for hearing participants (Cardin et al, 2018;Geraci et al, 2008;Heled & Ohayon, 2021;Hirshorn et al, 2012;Romero-Lauro et al, 2014;Wilson et al, 1997), and others reporting equivalent spatial spans in Deaf and hearing groups (e.g., Alamargot et al, 2007;Blair, 1957;Carey & Blake, 1974;Flaherty & Moran, 2001;Logan et al, 1996;Marschark et al, 2015;Marshall et al, 2015;Rollman & Harrison, 1996;Streff et al, 1978;Terhune-Cotter et al, 2021). Similar studies have also reported no group differences in tactile span measured by touch sequences (Heled & Ohayon, 2021) or in sequencing of nonverbal stimuli (Terhune-Cotter et al, 2021).…”