Tempest Gavin D, Radel Rémi
Université Côte d'Azur, Laboratoire Motricité Humaine Expertise Sport Santé (LAMHESS), Nice, France; Stanford University, Center for Interdisciplinary Brain Sciences Research, Stanford, USA.
Université Côte d'Azur, Laboratoire Motricité Humaine Expertise Sport Santé (LAMHESS), Nice, France.
Behav Brain Res. 2019 Nov 5;373:112082. doi: 10.1016/j.bbr.2019.112082. Epub 2019 Jul 10.
Thinking creatively requires the ability to consciously augment creative insight through processes such as analogical reasoning and relational cognition. Prior work has examined augmented states of creativity using a modified verb generation task which requires brief engagement in attempts to think creatively during MRI. In this study, we employed the verb generation task to examine augmented creative states and frontopolar cortex activation in a less-constrained setting using functional near infrared spectroscopy (fNIRS). Participants (n = 29) were presented with a noun and were required to think of an associated verb. In 50% of the trials, participants were instructed to 'think creatively' (cued condition) as opposed to stating the first or most prominent verb that came to mind (uncued condition). The task was administered in French to native speakers. Hemodynamic responses were recorded over the frontopolar cortex using fNIRS. The relatedness of the noun-verb pairs was calculated and other measures of creativity (the Alternate Uses Test, Compound Remote Associate Test and the Biographical Inventory of Creative Behaviors) were recorded. We showed that in the cued condition, semantic scores were higher (indicating more creative responses), positively associated with other measures of creativity, and changes in oxygenated hemoglobin were larger and more extensive in the left frontopolar cortex, than in the uncued condition. Our findings support the use of the verb generation task (administered in French) to augment creative states and provides further validation of the use of the task to capture creativity (i.e., processes involved in generating creative responses through distant associations). We highlight the use of fNIRS to measure associated regional changes in frontopolar cortex activity during augmented states of creativity.
创造性思维需要具备通过类比推理和关系认知等过程有意识地增强创造性洞察力的能力。先前的研究使用一种经过修改的动词生成任务来考察创造力的增强状态，该任务要求在磁共振成像（MRI）期间短暂地尝试进行创造性思考。在本研究中，我们采用动词生成任务，利用功能近红外光谱技术（fNIRS）在限制较少的环境中考察增强的创造性状态和额极皮质激活情况。研究参与者（n = 29）会看到一个名词，并被要求想出与之相关的动词。在50%的试验中，参与者被指示“创造性地思考”（提示条件），而非说出首先想到的或最突出的动词（非提示条件）。该任务以法语对母语为法语的人进行。使用fNIRS记录额极皮质的血流动力学反应。计算名词 - 动词对的相关性，并记录其他创造力指标（替代用途测试、复合远程联想测试和创造性行为传记量表）。我们发现，在提示条件下，语义得分更高（表明反应更具创造性），与其他创造力指标呈正相关，并且左额极皮质中氧合血红蛋白的变化比非提示条件下更大、更广泛。我们的研究结果支持使用（以法语进行的）动词生成任务来增强创造性状态，并进一步验证了该任务在捕捉创造力（即通过远距离联想产生创造性反应所涉及的过程）方面的应用。我们强调使用fNIRS来测量在创造性增强状态下额极皮质活动的相关区域变化。
