目前，我国在校研究生已达300万人数规模，女研究生比例也在逐年上升。研究表明研究生出现阈下抑郁症状的概率是普通人群的6倍，且女研究生更易出现焦虑和抑郁。女研究生因为生物因素、心理因素、社会文化中的人际期待、社会性别角色的冲突等社会因素，在自我发展时容易产生内心冲突，面临着更高的阈下抑郁风险。阈下抑郁状态中的女研究生往往会出现注意力分散、记忆力下降、学习动力减弱等问题，严重影响其学术表现和研究进展。长期处于阈下抑郁的女研究生可能会出现自我价值感的下降、社交回避以及生活质量的降低，甚至可能发展为重度抑郁症或产生自杀念头，对学生的身心健康构成严重威胁。
关于女研究生的阈下抑郁干预当前仍处于初步阶段，缺乏针对性强、效果显著的干预措施。常用的干预方法包括认知行为疗法、药物治疗等，但这些方法存在一定的局限性，如认知行为疗法虽然能够短期内缓解阈下抑郁症状，但往往忽视了个体的心理发展和深层次心理需求；药物治疗则存在副作用明显、依从性差等问题。鉴于目前该领域干预研究的缺乏以及现有研究存在的困难，探索更为适宜的干预方法对于改善女研究生的抑郁状况具有重要意义。
动力性人际治疗（Dynamic Interpersonal Therapy, DIT）是一种源于精神分析理论的短程心理治疗方法，它特别关注患者的人际关系模式及其情感体验。DIT通过识别和处理患者在人际关系中的一个主要且重复出现的无意识模式，即人际情感焦点（Interpersonal Affective Focus, IPAF），来缓解阈下抑郁症状。DIT的治疗过程具有较强的个性化和灵活性，能够根据来访者的具体情况调整治疗策略，相较于其他疗法，DIT更加注重于探索和改变深层次的认知与情感模式，有助于提升治疗效果。
本研究采用定性个案研究，在DIT理论指导下，针对一名符合阈下抑郁标准的女研究生抑郁状况制定了个性化的干预方案，进行了每周2次，每次60分钟，共16次个体心理咨询干预，其中包括1次初评访谈；9个月后进行回访咨询。干预过程中，咨询师运用动力性人际治疗的治疗框架，与来访者共同探讨了其人际关系图、依恋风格、人际环境和情绪调节策略，形成了关于来访者的人际情感焦点，并围绕该焦点进行了深入的咨询与干预。研究结果显示，经过DIT干预，来访个案的阈下抑郁水平明显下降，且在随访中仍然保持较低水平，表明DIT对其阈下抑郁具有显著的干预效果。此外，相较于干预前，来访者自尊水平上升。而来访者的依恋风格在干预过程中，保持恐惧型依恋风格不变。
综上所述，本研究使用DIT对一例女研究生阈下抑郁个案进行干预，并对干预效果进行检验与分析，发现DIT是干预女研究生的阈下抑郁的有效方式，其可以通过提升来访者的自尊水平，增强来访者对于人际情感模式的理解，进而降低其阈下抑郁水平，并表现出手册化、干预效果显著且持续性强等优势。

The number of graduate students in China has reached a scale of 3 million, with the proportion of female graduate students increasing year by year. Studies have indicated that the likelihood of graduate students experiencing subclinical depressive symptoms is six times that of the general population, and female graduate students are more prone to anxiety and depression. Female graduate students often face higher risks of subclinical depression due to biological factors, psychological factors, interpersonal expectations within social culture, and conflicts with gender roles. These social factors can lead to internal conflicts during their self-development, which in turn can result in issues such as scattered attention, decreased memory, and diminished motivation to learn, severely affecting their academic performance and research progress. Female graduate students who are in a state of subclinical depression for an extended period may experience a decline in self-worth, social avoidance, and a reduction in the quality of life, and may even develop severe depression or suicidal thoughts, posing a serious threat to their physical and mental health.
Currently, interventions for subclinical depression among female graduate students are still in the initial stages and lack targeted and effective measures. Common intervention methods include cognitive-behavioral therapy and medication treatment, but these methods have certain limitations. Although cognitive-behavioral therapy can alleviate subclinical depressive symptoms in the short term, it often neglects the individual's psychological development and deeper psychological needs; medication treatment, on the other hand, has issues such as obvious side effects and poor compliance. Therefore, exploring more suitable intervention methods is of great significance for improving the depressive conditions of female graduate students.
Dynamic Interpersonal Therapy (DIT) is a short-term psychotherapeutic approach derived from psychoanalytic theory, which pays special attention to the patient's interpersonal patterns and emotional experiences. DIT aims to alleviate subclinical depressive symptoms by identifying and addressing a primary and recurring unconscious pattern in the patient's interpersonal relationships, known as the Interpersonal Affective Focus (IPAF). The therapeutic process of DIT is highly personalized and flexible, allowing for the adjustment of treatment strategies according to the specific circumstances of the client. Compared to other therapies, DIT places greater emphasis on exploring and changing deep cognitive and emotional patterns, which can enhance the effectiveness of treatment.
This study employed a qualitative case study approach, guided by the theory of DIT, to develop a personalized intervention plan for a female graduate student who met the criteria for subclinical depression. The intervention consisted of individual psychological counseling twice a week, for 60 minutes each session, for a total of 16 sessions, including one initial assessment interview; a follow-up consultation was conducted nine months later. During the intervention, the therapist used the framework of Dynamic Interpersonal Therapy to explore the client's interpersonal map, attachment style, interpersonal environment, and emotional regulation strategies, forming an understanding of the client's interpersonal affective focus and conducting in-depth counseling and intervention around this focus.The study results showed that after DIT intervention, the client's level of subclinical depression significantly decreased and remained at a lower level during the follow-up, indicating that DIT has a significant intervention effect on subclinical depression. Additionally, compared to before the intervention, the client's self-esteem increased. 
In summary, this study used DIT to intervene in a case of subthreshold depression in a female graduate student, and tested and analyzed the intervention effect, and found that DIT is an effective way to intervene in the subthreshold depression of a female graduate student, which can reduce the level of subthreshold depression by improving the visitor's self-esteem level and enhancing the visitor's understanding of interpersonal emotional patterns, and shows the advantages of manualization, significant intervention effect and It also shows the advantages of manualization, significant intervention effect and strong continuity.