Research Article

Increased Cortical Thickness in Attentional Networks in Parkinson’s Disease with Minor Hallucinations

Table 1

Demographic and clinical characteristics.

HC (N = 30)PDnH (N = 30)PDMH (N = 30) valuePost hoc

Demographics
 Age (years)63.2(9.5)62.7(8.1)63.7(9.7)0.919
 Male, n (%)19(63)19(63)19(63)
 Education (years)16.0(2.9)15.1(3.1)15.6(2.9)0.505

Clinical
 Years since diagnosis1.7(1.1)2.3(1.4)0.094
 MDS-UPDRS Part III21.0(10)25.7(11.3)0.097
 Hoehn and Yahr, median (range)2(1–3)2(1–3)0.347
 Dyskinesia present, n (%)1(3)0(0)0.313
 REM sleep behaviour disorder, n (%)9(30)15(50)0.114
 Medication for PD, n (%)12(41)17(57)0.240
  Levodopa, n (%)7(23)12(40)0.165
  DA agonist, n (%)2(7)6(20)0.129
  Other, n (%)4(13)7(23)0.317
 LEDD (mg)370.2(225.5)410.9(273.9)0.675
 Antipsychotic medication (quetiapine), n (%)0(0)1a(3)0.313
Duration of hallucinations (years)1.23(0.66)

Cognition
 Cognitive state (intact: MCI)30 : 020 : 1020 : 10
 MoCA28.1(1.8)26.5(2.3)25.7(2.5)<0.001HC > PDnVH and PDMH

Notes: demographic, clinical, and cognitive characteristics of our sample. Mean and standard deviation (parentheses) except where otherwise noted. ANOVAs were conducted for each measure and, if significant (), group differences were ascertained through post hoc testing. DA = dopamine; LEDD = levodopa equivalent daily dosage; MCI = mild cognitive impairment; MoCA = Montreal Cognitive Assessment. aQuetiapine 25 mg initiated 6 years prior to the scan date to treat anxiety.