Aphantasia is a condition that involves an inability to generate voluntary visual images and it occurs in about 3-4% of the population. Previous research has shown that people with aphantasia have deficits in motor simulation. The aim of this study was to investigate the neural activity during kinesthetic motor imagery (KMI) and internal visual-motor imagery (IVMI). Gender, education, handedness and age were matched for the 15 subjects (8 aphantasics; 4 men) aged 19-46 years (M = 26,29; SD = 9,90) who participated in the study. All subjects completed the second Polish version of the Vividness of Visual Imagery Questionnaire (VVIQ-2PL) to determine the level of vividness of visual imagery (aphantasics > 64; control group 98-143), the Edinburgh Handedness Scale (EHI) to determine hand dominance and the third Polish version of the Motor Imagery Questionnaire (MIQ-3) to control motor imagery abilities. The experimental procedure used a 1-DoF haptic interface to simulate grip resistance. Subjects performed a task that involved squeezing the grip and then imagining the resistance experienced during this movement and observing the hand clenching and imagining it from a first-person perspective. The hemodynamic signal was recorded using a functional near-infrared spectroscope (Cortivision sp z o.o., Poland) from 26 channels located bilaterally in the motor cortex, medial frontal gyrus and primary visual cortex. Significant differences were observed between groups for medial frontal gyrus in the KMI condition. We suggest that the results may indicate a variety of cognitive strategies adopted by people with aphantasia.