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Treatment for hoarding disorder : workbook
\"This second edition ... is the culmination of more than 20 years of research on understanding hoarding and building an effective intervention to address its myriad components. Thoroughly updated and reflective of changes made to the fifth edition of the Diagnostic and statistical manual for mental disorders (DSM-5), this second edition of the client workbook and accompanying therapist guide outlines an empirically supported and effective CBT program for HD\"--Page 4 of cover.
Book
Sustainable Management of Food Waste during COVID-19 Pandemic: Insights into Irrational Food Hoarding among Chinese Citizens
During the COVID-19 pandemic, food waste caused by excessive hoarding has accounted a large proportion of the total food waste in urban Chinese households, which indicates that reducing food hoarding has become key to managing household food waste. This study therefore explored the behavioral mechanisms underlying excessive food hoarding among citizens. Based on a sample set of 511 respondents surveyed in Beijing, Hefei, and Guiyang in July 2022, a PLS-SEM model was conducted using SmartPLS 3.0 software to simulate the decision-making process of food hoarding. The following results were found. First, among the households with hoarding, 66.37% had some degree of food waste. Second, hoarding preference was the direct predictor of hoarding behavior, which means that hoarding behavior can be effectively controlled by regulating preferences. Third, group influence including homology consistency and social network support, as well as psychological panic, both enhanced citizens’ hoarding preference and induced hoarding behavior. Therefore, it is necessary to weaken group influence and try to help citizens overcome panic. Finally, food supply information release can not only alleviate citizens’ psychological panic and weaken group influence, but also block the transformation of preference into behavior. The above results are of great importance for the design of management policies for food waste caused by irrational hoarding during the pandemic.
Journal Article
Adaptation and psychometric testing of the hoarding rating scale (HRS): a self-administered screening scale for epidemiological study in Chinese population
Background
Hoarding disorder is a chronic and debilitating illness associated with restrictions on activities of daily living, compromised social and occupational functioning, and adverse health outcomes. However, researchers lack a brief and self-administered screening measurement to assess compulsive hoarding in the Chinese speaking population. This study aimed to adapt and validate the Hoarding Rating Scale-Interview (HRS-I) to as a tool for screening compulsive hoarding behavior in Chinese population.
Methods
This study comprised two phases. During Phase 1, the English-language HRS-I was translated into Chinese (CHRS) (comprehensible for most Chinese speaking population, e.g., Cantonese & Mandarin) and subjected to an equivalence check. In Phase 2, the CHRS was validated by examining internal consistency, stability, and construct validity. Different samples were used appropriately to verify the items and reflect the psychometric properties.
Results
In Phase 1, the CHRS yielded satisfactory content (S-CVI = 0.93) and face validity ratings (comprehensibility = 100%,
N
= 20 participants of general public with age 18–72) and the English and Chinese versions were found to be equivalent (ICC = 0.887;
N
= 60 university staff and students). Phase 2 revealed satisfactory levels of internal consistency (Cronbach’s α = 0.86; corrected item-total correlation = 0.60–0.74;
N
= 820 participants of general public), 2-week test-retest reliability (ICC = 0.78;
N
= 60 university students), and construct validity (one-factor CFA solution matched with the hypothesized model, χ
2
/d.f. = 2.26, RMSEA = 0.049, CFI = 0.99, IFI = 0.99, NFI = 0.99;
n
= 520 participants of general public).
Conclusions
This study provides sufficient evidence of the reliability and validity of the CHRS for compulsive hoarding behavior screening in the Chinese population through self-administered method.
Journal Article
Ungulate presence and predation risks reduce acorn predation by mice in dehesas
Foraging decisions by rodents are key for the long-term maintenance of oak populations in which avian seed dispersers are absent or inefficient. Decisions are determined by the environmental setting in which acorn-rodent encounters occur. In particular, seed value, competition and predation risks have been found to modify rodent foraging decisions in forest and human-modified habitats. Nonetheless, there is little information about their joint effects on rodent behavior, and hence, local acorn dispersal (or predation). In this work, we manipulate and model the mouse-oak interaction in a Spanish dehesa, an anthropogenic savanna system in which nearby areas can show contrasting levels of ungulate densities and antipredatory cover. First, we conducted a large-scale cafeteria field experiment, where we modified ungulate presence and predation risk, and followed mouse foraging decisions under contrasting levels of moonlight and acorn availability. Then, we estimated the net effects of competition and risk by means of a transition probability model that simulated mouse foraging decisions. Our results show that mice are able to adapt their foraging decisions to the environmental context, affecting initial fates of handled acorns. Under high predation risks mice foraged opportunistically carrying away large and small seeds, whereas under safe conditions large acorns tended to be predated in situ . In addition, in the presence of ungulates lack of antipredatory cover around trees reduced mice activity outside tree canopies, and hence, large acorns had a higher probability of survival. Overall, our results point out that inter-specific interactions preventing efficient foraging by scatter-hoarders can reduce acorn predation. This suggests that the maintenance of the full set of seed consumers as well as top predators in dehesas may be key for promoting local dispersal.
Journal Article
The effects of scatter-hoarding rodents on Mongolian oak (Quercus mongolica) acorn dispersal and seedling distribution in urban woodland
Scatter-hoarding by animals is an effective mechanism for seed dispersal and plant regeneration in natural ecosystems, however, studies on the interaction between hoarding animals and urban forest are insufficient. By methods of acorn placement experiment, cache and seedling survey, the relationship between acorn dispersal and seedlings distribution of Mongolian oak (
Quercus mongolica
) and scatter hoarding rodents was investigated at the Northeast Forestry University Woodland of Harbin, China. Results indicated that main scatter hoarding rodents of acorns were squirrels (
Sciurus vulgaris
) and chipmunks (
Eutamias sibiricus
). Mongolian oak seedlings were distributed primarily in Mongolian Scotch pine, birch and larch parcels (
df
= 3,
χ
2
= 1502.77,
P
< 0.01). Most seedlings were 4 ~ 6 years (
df
= 3,
χ
2
= 408.23,
P
< 0.01) and mainly dispersed within range of 100 m from the parent trees. The activity frequency and cache habitats of squirrels coincided with the distribution pattern of Mongolian oak seedlings, which meant scatter hoarding rodents had important effects on acorn dispersal and seedling establishment of urban Mongolian oaks.
Journal Article
“In an ideal world that would be a multiagency service because you need everybody’s expertise.” Managing hoarding disorder: A qualitative investigation of existing procedures and practices
Hoarding disorder is characterised by the acquisition of, and failure to discard large numbers of items regardless of their actual value, a perceived need to save the items and distress associated with discarding them, significant clutter in living spaces that render the activities associated with those spaces very difficult causing significant distress or impairment in functioning. To aid development of an intervention for hoarding disorder we aimed to identify current practice by investigating key stakeholders existing practice regarding identification, assessment and intervention associated with people with hoarding disorder. Two focus groups with a purposive sample of 17 (eight male, nine female) stakeholders representing a range of services from housing, health, and social care were audio recorded, transcribed verbatim and analysed thematically. There was a lack of consensus regarding how hoarding disorder was understood and of the number of cases of hoarding disorder however all stakeholders agreed hoarding disorder appeared to be increasing. The clutter image rating scale was most used to identify people who needed help for hoarding disorder, in addition to other assessments relevant to the stakeholder. People with hoarding disorder were commonly identified in social housing where regular access to property was required. Stakeholders reported that symptoms of hoarding disorder were often tackled by enforced cleaning, eviction, or other legal action however these approaches were extremely traumatic for the person with hoarding disorder and failed to address the root cause of the disorder. While stakeholders reported there was no established services or treatment pathways specifically for people with hoarding disorder, stakeholders were unanimous in their support for a multi-agency approach. The absence of an established multiagency service that would offer an appropriate and effective pathway when working with a hoarding disorder presentation led stakeholders to work together to suggest a psychology led multiagency model for people who present with hoarding disorder. There is currently a need to examine the acceptability of such a model.
Journal Article
“Falling between the cracks”: Investigating the competing challenges experienced by professionals working with people who hoard
Hoarding disorder is characterised by both the distress associated with discarding and the resulting accumulation of possessions that clutter the home environment, and represents a substantial public health and social problem, requiring an effective multi-agency response. Although a recognised psychiatric condition since 2013, hoarding disorder is under-recognised within mental health treatment provision, and evidence-based treatment pathways are lacking. This study aimed to explore multi-agency working in practice and similarities and differences in how hoarding support is perceived across a broad range of front-line professionals. 35 semi-structured interviews representing a wide range of services from health, social care, housing, and the voluntary sector were conducted and analysed thematically. Three overarching themes are reported: Unique challenges of supporting people who hoard, Conflicting needs of client vs. needs of the organisation, Managing role boundaries and psychological tensions. Findings consistently highlight the challenges specific to these cases. However, they also point to a lack of consensus between professional groups in terms of perceived problems and risks to be addressed. Collaborating effectively with others to meet the psychological needs of clients while ensuring risk mitigation and addressing broader organisational, environmental, and community concerns was found to be a key challenge and associated with often going beyond designated role boundaries to support the person. Our findings point to a need for greater support and training of a diverse set of professionals in psychological models of people who hoard to enhance knowledge, awareness, and confidence of the psychological dimensions of hoarding disorder, and to support them in feeling more emotionally and practically prepared. The results indicate a need for greater integration of mental health measures in the assessment of hoarding cases, and to ensure adequate care pathways with dedicated psychological support along with assignment of case workers/coordination.
Journal Article
Differential foraging preferences on seed size by rodents result in higher dispersal success of medium-sized seeds
Rodent preference for scatter-hoarding large seeds has been widely considered to favor the evolution of large seeds. Previous studies supporting this conclusion were primarily based on observations at earlier stages of seed dispersal, or on a limited sample of successfully established seedlings. Because seed dispersal comprises multiple dispersal stages, we hypothesized that differential foraging preference on seed size by animal dispersers at different dispersal stages would ultimately result in medium-sized seeds having the highest dispersal success rates. In this study, by tracking a large number of seeds for 5 yr, we investigated the effects of seed size on seed fates from seed removal to seedling establishment of a dominant plant Pittosporopsis kerrii (Icacinaceae) dispersed by scatter-hoarding rodents in tropical forest in southwest China. We found that small seeds had a lower survival rate at the early dispersal stage where more small seeds were predated at seed stations and after removal; large seeds had a lower survival rate at the late dispersal stage, more large seeds were recovered, predated after being cached, or larder-hoarded. Medium-sized seeds experienced the highest dispersal success. Our study suggests that differential foraging preferences by scatter-hoarding rodents at different stages of seed dispersal could result in conflicting selective pressures on seed size and higher dispersal success of medium-sized seeds.
Journal Article
The prevalence, correlates, and clinical implications of hoarding behaviors in high-functioning autism
This study aimed to investigate the relationships between hoarding behaviors, autism characteristics, and demographic factors in adults diagnosed with high-functioning ASD (Autism Spectrum Disorder). A total of 112 adults, aged 18–35, with high-functioning ASD completed self-reported assessments on hoarding (Savings Inventory-Revised; SI-R) and autism traits (Autism-Spectrum Quotient; AQ). Additionally, demographic data was gathered. Correlation and regression analyses were performed. The findings revealed positive correlations between hoarding and overall autism traits. Autism quotient scores accounted for 24% of the variance in hoarding inventory scores. Higher AQ scores were associated with increased SI-R scores. Specific AQ subscales were linked to particular SI-R subscales. Gender, age, education level, and employment status were connected to assessment scores. A multiple regression analysis revealed that demographic variables accounted for 19% of the variance in hoarding severity. Gender was found to moderate the impact of age on hoarding behaviors. Significant associations were identified between hoarding tendencies and autism traits in adults with ASD. Demographic variables also played a role in symptom presentation. These findings shed light on the relationship between autism characteristics and hoarding behaviors, as well as how external factors influence them. Further research is necessary to enhance understanding and guide interventions for hoarding in ASD populations.
Journal Article
‘A more human approach … I haven’t found that really’: experiences of hoarding difficulties and seeking help
People with hoarding behaviours often struggle to engage in treatment. This study aimed to explore the experiences of a sample of people who identify as engaging in hoarding behaviours and who are seeking support. Exploring motivation to seek help, the barriers those who hoard face in accessing support and what facilitates accepting help, can aid understanding of how best to intervene.
Eight individuals who self-identified as seeking help in relation to hoarding behaviours were recruited via social media and support groups. Interviews were conducted by telephone or video call, before being transcribed and analysed using interpretative phenomenological analysis.
Participants described complex help-seeking narratives and reported continued ambivalence about addressing their hoarding behaviours. The four group experiential themes identified were Wrestling with identity; Who can I trust?; Services don't fit; and Being overlooked: 'they're too busy looking at the thing, not the person'. Difficulties trusting others and services were identified; services were experienced as rejecting and many participants sought help for problems other than their hoarding. Problems accessing appropriate help for hoarding were predominant in the narratives, although participants who had accessed peer support described this as valuable.
There are both internal (e.g. fear of judgement; feeling overwhelmed) and external (e.g. service gaps) barriers that make finding useful help for hoarding behaviours very difficult. Services may facilitate those seeking help by taking a compassionate and person-centred approach to hoarding problems.
Journal Article